NOAA Technical Memorandum NOS CS 24

SKILL ASSESSMENT OF THE DELAWARE RIVER AND 

BAY OPERATIONAL FORECAST SYSTEM (DBOFS) 

Silver Spring, Maryland 

January 2011 

noaa National Oceanic and Atmospheric Administration 

U.S. DEPARTMENT OF COMMERCE 

National Ocean Service 

Coast Survey Development Laboratory 
Office of Coast Survey 

National Ocean Service 

National Oceanic and Atmospheric Administration 

U.S. Department of Commerce

The Office of Coast Survey (OCS) is the Nation’s only official chartmaker. As the 

oldest United States scientific organization, dating from 1807, this office has a long 

history. Today it promotes safe navigation by managing the National Oceanic and 

Atmospheric Administration’s (NOAA) nautical chart and oceanographic data 

collection and information programs. 

There are four components of OCS: 

The Coast Survey Development Laboratory develops new and efficient 

techniques to accomplish Coast Survey missions and to produce new and 

improved products and services for the maritime community and other coastal 

users. 

The Marine Chart Division acquires marine navigational data to construct and 

maintain nautical charts, Coast Pilots, and related marine products for the 

United States. 

The Hydrographic Surveys Division directs programs for ship and shore-based 

hydrographic survey units and conducts general hydrographic survey 

operations. 

The Navigational Services Division is the focal point for Coast Survey 

customer service activities, concentrating predominately on charting issues, 

fast-response hydrographic surveys, and Coast Pilot updates. 
NOAA Technical Memorandum NOS CS 24 

SKILL ASSESSMENT OF THE DELAWARE RIVER AND 

BAY OPERATIONAL FORECAST SYSTEM (DBOFS) 

Richard A. Schmalz, Jr. 

Office of Coast Survey, Coast Survey Development Laboratory, 

Silver Spring, MD 

January 2011 

noaa National Oceanic and Atmospheric Administration 

U. S. DEPARTMENT National Oceanic and National Ocean Service 

OF COMMERCE Atmospheric Administration John H. Dunnigan 

Gary Locke, Secretary Jane Lubchenco, Ph.D. Assistant Administrator 

 Under Secretary 

Office of Coast Survey Coast Survey Development Laboratory 

Captain Steven R. Barnum, NOAA Mary Erickson 
ii

NOTICE 

Mention of a commercial company or product does not constitute an 

endorsement by NOAA. Use for publicity or advertising purposes of 

information from this publication concerning proprietary products or 

the tests of such products is not authorized.
iii

TABLE OF CONTENTS 

LIST OF FIGURES .............................................................................................................v 

LIST OF TABLES ............................................................................................................ vi

EXECUTIVE SUMMARY ............................................................................................. vii 

Base Map 1. Upper Delaware River Principal Measurement Locations .......................... xii 

Base Map 2. Lower Delaware River and Bay Principal Measurement Locations ........... xiii 

1. INTRODUCTION ...........................................................................................................1 

2. MODEL SYSTEM OVERVIEW ....................................................................................5 

2.1. ROMS Hydrodynamic Model ...........................................................................5 

 2.2. ROMS Grid .......................................................................................................5 

2.3. ROMS Input and Output Files ..........................................................................7 

 2.4. Installation using the SVN system ....................................................................7 

3. MODEL RUN SCENARIO DEFINITION ....................................................................9 

3.1. Astronomical Tide Only Simulation .................................................................9 

 3.2. Hindcast Simulation ..........................................................................................9 

3.3. Semi-Operational Nowcast/Forecast Simulation ............................................13 

4. SKILL ASSEESSMENT STATISTICS AND DATA .................................................15 

 4.1. Skill Assessment Statistics ..............................................................................15 

4.2. Data .................................................................................................................17 

5. WATER LEVEL SKILL ASSEESSMENT .................................................................21 

 5.1. Astronomic Tide Only Simulation ..................................................................21 

5.2. Hindcast Simulation ........................................................................................22 

5.3. Semi-operational Nowcast/Forecast Simulation .............................................22 

6. CURRENT SKILL ASSEESSMENT...........................................................................25 

 6.1. Astronomic Tide Only Simulation ..................................................................25 

6.2. Hindcast Simulation ........................................................................................26 

6.3. Semi-operational Nowcast/Forecast Simulation .............................................27 

7. SALINITY SKILL ASSEESSMENT ...........................................................................31 

 7.1. Hindcast Simulation ........................................................................................31

7.2. Semi-operational Nowcast/Forecast Simulation .............................................31 

8. TEMPERATURE SKILL ASSEESSMENT ................................................................35 

 8.1. Hindcast Simulation ........................................................................................35

8.2. Semi-operational Nowcast/Forecast Simulation .............................................35 

9. CONCLUSIONS...........................................................................................................39 
iv

TABLE OF CONTENTS (Cont.) 

ACKNOWLEDGMENTS .................................................................................................40 

REFERENCES ..................................................................................................................40

APPENDIX A. COMPARISON OF WATER LEVEL HARMONIC CONSTANTS .....43 

APPENDIX B. SKILL ASSESSMENT SCORE TABLES FOR WATER LEVELS: 

 ASTRONOMICAL TIDE AND HINDCAST SIMULATIONS .............53 

APPENDIX C. SKILL ASSESSMENT SCORE TABLES FOR WATER LEVELS: 

 NOWCAST/FORECAST SIMULATIONS .............................................63 

APPENDIX D. COMPARISON OF CURRENT HARMONIC CONSTANTS ..............69 

APPENDIX E. SKILL ASSESSMENT SCORE TABLES FOR CURRENT SPEED: 

 ASTRONOMICAL TIDE AND HINDCAST SIMULATIONS .............89 

APPENDIX F. SKILL ASSESSMENT SCORE TABLES FOR CURRENT SPEED: 

 NOWCAST/FORECAST SIMULATIONS .............................................99 

APPENDIX G. SKILL ASSESSMENT SCORE TABLES FOR CURRENT 

DIRECTIONS: ASTRONOMICAL TIDE SIMULATION .................105 

APPENDIX H. SKILL ASSESSMENT SCORE TABLES FOR CURRENT 

DIRECTIONS: NOWCAST/FORECAST SIMULATIONS ................107 

APPENDIX I. SKILL ASSESSMENT SCORE TABLES FOR SALINITY: 

 HINDCAST SIMULATION .................................................................109 

APPENDIX J. SKILL ASSESSMENT SCORE TABLES FOR SALINITY: 

 NOWCAST/FORECAST SIMULATIONS ..........................................113 

APPENDIX K. SKILL ASSESSMENT SCORE TABLES FOR TEMPERATURE: 

 HINDCAST SIMULATION .................................................................115 

APPENDIX L. SKILL ASSESSMENT SCORE TABLES FOR TEMPERATURE: 

 NOWCAST/FORECAST SIMULATIONS ..........................................121 
v

LIST OF FIGURES 

Figure 1. The NOAA/NOS/CO-OPS Delaware River and Bay PORTS ............................3 

Figure 2. Screen capture of the NOS/CO-OPS Text-based Delaware River and Bay 

PORTS Screen for March 3, 2010 9:34 EST ......................................................4 

Figure 3. Map depicting Delaware River and Bay DELFT-3D High Resolution Grid in 

the C&D Canal Region ........................................................................................6 

Figure 4. Map depicting bathymetry with respect to Model Datum in the C&D Canal 

Region .................................................................................................................6 

Figure 5. Upper Delaware River NOS Water Level Locations: Tidal and Hindcast 

Simulations ........................................................................................................10 

Figure 6. Lower Delaware River and Bay NOS Water Level Locations: Tidal and 

Hindcast Simulations .........................................................................................11 

Figure 7. Lower Delaware River and Bay NOS Current Locations: Tidal and Hindcast 

Simulations ........................................................................................................12 

Figure 8. Water level time series comparison for DBOFS’ semi-operational nowcasts 

during JD 120-135, 2010 at eight NOS stations ................................................23 

Figure 9. Velocity time series comparison for DBOFS’ semi-operational nowcasts during 

JD 120-135, 2010 at four NOS ADCPs ............................................................29 

Figure 10. Surface salinity time series comparison for DBOFS’ semi-operational 

nowcasts during JD 105-180, 2010 at three NOS stations ................................32 

Figure 11. Surface temperature time series comparison for DBOFS’ semi-operational 

nowcasts during JD 105-180, 2010 at eight NOS stations ................................37 
vi

LIST OF TABLES 

Table 1. Skill assessment Statistics ..................................................................................15 

Table 2. Data series Groups and the variables in each ....................................................16 

Table 3. Acceptance error limits (X) and maximum duration limits ...............................16 

Table 4. NOS water Level Stations Used in the Astronomical Tide and Hindcast Skill 

Assessment Periods: 1 March 1984 – 31 March 1985 ........................................17 

Table 5. NOS current Stations Used in the Astronomical Tide and Hindcast Skill 

Assessment Periods: 1 March 1984 – 31 March 1985 ........................................18 

Table 6. NOS salinity Stations Used in the Hindcast Skill Assessment Period: 1 March 

1984 – 31 March 1985 ........................................................................................19 

Table 7. NOS temperature Stations Used in the Hindcast Skill Assessment Period: 1 

March 1984 – 31 March 1985 .............................................................................19 

Table 8. NOS water Level Stations Used in the Nowcast/Forecast Skill Assessment 

Period: 15 April – 15 July 2010 ..........................................................................20 

Table 9. NOS current Stations Used in the Nowcast/Forecast Skill Assessment Period: 

15 April – 15 July 2010 ......................................................................................20 

Table 10. NOS salinity Stations Used in the Nowcast/Forecast Skill Assessment Period: 

15 April – 15 July 2010 .....................................................................................20 

Table 11. NOS temperature Stations Used in the Nowcast/Forecast Skill Assessment 

Period: 15 April – 15 July 2010 ........................................................................20 
vii

EXECUTIVE SUMMARY 

An experimental numerical oceanographic nowcast/forecast system for the Delaware 

River and Bay has been developed by NOAA/National Ocean Service’s Coast Survey 

Development Laboratory (CSDL) Marine Modeling and Analysis Programs. This 

hydrodynamic forecast modeling system called the Delaware River and Bay Operational 

Forecast System (DBOFS) uses the Regional Ocean Modeling System (ROMS) as its 

core ocean circulation model to provide six-hourly nowcasts and forecast guidance out to 

48 hour forecasts four times a day of water levels, currents, salinity, and water 

temperatures. The nowcast/forecast system is run under the NOS High Performance 

Computing Coastal Ocean Modeling Framework (HPC-COMF) implemented for 

operational oceanographic forecast systems on the NOAA Central Computer System 

(CCS) operated by the National Weather Service’s National Centers for Environmental 

Prediction (NCEP). Output from DBOFS was implemented operationally at NOS’ Center 

for Operational Oceanographic Products and Services in September 2010. 

A standard suite of NOS skill assessment (SA) statistics which includes Central 

Frequency (CF), Negative and Positive Outlier Frequency (NOF and POF), Maximum 

Duration of Negative and Positive Outlier (MDNO and MDPO), and the Worst Outlier 

Frequency (WOF) were computed for four DBOFS scenarios: 1) astronomical tidal 

simulation, 2) hindcast simulation, 3) semi-operational nowcast simulation, and 4) semioperational forecast simulation. A forecast method comparison is presented between the 

model forecast and persistence forecast which is based upon the observed persisted 

residual value and astronomical tidal prediction. For the astronomical tide and hindcast 

scenarios, the modeled and observed time series of water levels and currents were 

compared at nine water level stations and nineteen current meter stations, respectively. 

For the hindcast scenario modeled and observed salinities and temperatures were 

compared at twenty and twenty one stations, respectively. For the semi-operational 

nowcast and forecast scenarios, water levels, currents, salinities, and water temperatures 

were compared at twelve, two, three, and eight stations, respectively. Time series of 

astronomical tide and hindcast simulations were created for the thirteen month period 

March 1984-March 1985, and the time series of semi-operational nowcast and forecast 

simulations were created for the three month period 15 April - 15 July of 2010. 

The skill assessment statistics for water levels pass the majority of the criteria in the 

lower Delaware Bay and lower Delaware River with results in the upper River above 

Philadelphia, PA slightly degraded for each of the four scenarios. Therefore, the model’s 

water level nowcasts and forecasts were of sufficient accuracy to recommend that the 

DBOFS be made operational. 

Most of CF, NOF, POF, MDNO, and MDPO for water currents either pass or are close to 

the criteria for the astronomical tidal and hindcast simulations. However, model nowcasts 

and forecasts of water currents are improved from the hindcast simulation, and meet the 

majority of the criteria for the test periods. 
viii

Salt front location and transition cannot be confirmed in either the hindcast or during the 

nowcast/forecast period due to lack of station coverage. There is some evidence during 

the nowcast that the model predictions are too fresh in the transition region from Reedy 

Point, DE to Ship John Shoal, DE by 2 – 3 PSU. 

Seasonal heating and cooling are confirmed during the hindcast, with some evidence of 

over-heating in the lower Bay and near Shelf. During the nowcast/forecast test period, 

CFs at all stations throughout the Bay and River are near 75%. 

The skill assessment results for each scenario are summarized as follows: 

Astronomical Tidal Simulation:

1) Water Level 

The modeled tidal constituents are in very close agreement with the observed values. At 

the Bay entrance the M2 dominant constituent errors were at Cape May, NJ -3.1 cm 

RMSE in amplitude and -1.3o in phase and at Lewes, DE 0.7 cm RMSE in amplitude and 

-1.8o in phase error. At Chesapeake City, MD errors in M2 were -4.1 cm RMSE in 

amplitude and 4.9o

 in phase. At Reedy Point, DE errors in M2 were -8.4 cm RMSE in 

amplitude and -1.2o in phase. As one proceeds upriver M2 errors at Philadelphia, PA are -

4.3 cm RMSE in amplitude and -4.2o

 in phase and at Trenton, NJ are -2.5 cm RMSE in 

amplitude and -10.9o in phase. CF, NOF, POF, MDNO, MDPO, and WOF all pass the 

criteria for the entire time series, as do the amplitudes of high and low water for most 

stations in the Delaware Bay. CF fails at some stations for the times of high and low 

water. At stations in the river sections at and above Philadelphia, PA, the SA targets are 

not met, but in general are not missed by large amounts except at Burlington, NJ and 

Trenton, NJ near the head of tide. 

2) Currents 

The principal current directions of the modeled and observed currents are very close, with 

differences between the modeled and observed values of 6, 1, 2, 5, and 1 degrees at 

Station 5 at the Bay entrance , Station 23 in the lower mid-Bay channel , Station 33 in the 

upper Bay channel, Station 154 at the Chesapeake and Delaware (C&D) canal, and 

Station 52 in the mid-River near Philadelphia, PA, respectively. For the dominant M2

constituent, the modeled amplitude is nearly identical to the observed value at the Bay 

entrance Station 5, while at Stations 23, 33, 154, and 52 the model amplitudes are smaller 

than the observed values with differences of -1.6, -22.9, -16.6, and -44.2 cm/s, 

respectively. The phase differences between the modeled and observed M2 currents are 

3.0, -4.2, -7.1, -10.7, and -18.9 degrees at Stations 5, 23, 33, 154, and 52, respectively. 

CF, NOF, POF, MDNO, and MDPO all nearly pass the criteria for current speed time 

series, amplitudes of maximum flood and ebb currents at Bay stations, but fail to pass the 

criteria at the upper-River stations. CF, NOF, POF, MDNO, and MDPO passed the 

criteria for current direction at the majority of the stations. 
ix

Hindcast

1) Water Level 

At Lewes, DE, Cape May, NJ, and Chesapeake City, MD, the RMSEs and CFs were 12 

cm, 12 cm, 11 cm and 83, 85, and 84, respectively. At Philadelphia, PA and Trenton, NJ 

the RMSEs and CFs were 13 cm, 21 cm, 87, and 79, respectively. CF, NOF, POF, 

MDNO, MDPO, and WOF all pass the criteria for the entire time series, as do the 

amplitudes of high and low water for most stations in the Delaware Bay. CF fails at 

some stations for the times of high and low water. At stations in the river sections at and 

above Philadelphia, PA, the SA targets are not met, but in general are not missed by large 

amounts except at Burlington, NJ and Trenton, NJ near the head of tide. 

2) Currents 

At Station 5 (Bay entrance), the modeled and observed mean velocity values are 53.2 

cm/s and 52.4 cm/s, and the RMSE between the simulated and observed current speeds is 

33.2 cm/s. At Station 23 (lower mid-Bay channel), the modeled and observed mean 

current speeds are 44.8 cm/s and 37.9 cm/s, respectively. The RMSE of the current 

speeds is 27.7 cm/s. At Station 33 (upper mid-Bay channel), the modeled and observed 

mean current speeds are 50.8 cm/s and 62.6 cm/s, respectively. The RMSE of the current 

speeds is 39.9 cm/s. At Station 154 (at C&D canal entrance), the modeled and observed 

mean current speeds are 39.8 cm/s and 45.1 cm/s, respectively. The RMSE of the current 

speeds is 39.3 cm/s. At Station 52 (in the mid-River near Philadelphia), the modeled and 

observed mean current speeds are 18.9 cm/s and 45.9 cm/s, respectively. The RMSE of 

the current speeds is 32.4 cm/s. 

The CF, NOF, POF, MDNO, and MDPO statistics at most stations fail the criteria for the 

entire 6-minute current speed time series, and the amplitudes of maximum flood and ebb 

currents and times of maximum flood and ebb and start and end times of the slack before 

flood and slack before ebb. Current direction comparisons were made, but were totally 

inconsistent with those of the astronomical tide simulation and are not reported. 

Semi-Operational Nowcast

1) Water Level 

CF, NOF, POF, MDNO, MDPO, and WOF all pass the criteria for the entire time series, 

as do the amplitudes of high and low water for most stations in the Delaware Bay. CF 

fails at some stations for the times of high and low water. At stations in the river sections 

at and above Philadelphia, PA, the SA targets are not met, but in general are not missed 

by large amounts accept at Burlington, NJ and Newbold, PA. At Lewes, DE, Cape May, 

NJ, Chesapeake City, MD, the RMSEs and CFs were 9 cm, 9 cm, 6 cm and 93, 94, and 

98, respectively. At Philadelphia, PA and Newbold, PA the RMSEs and CFs were 14 cm, 

21 cm, 83, and 59, respectively. 
x

2) Currents 

For Philadelphia, PA, the mean velocity of 56.8 cm/s for the model nowcast is less than 

the observed value of 66.08 cm/s. The RMSE for the entire 6-minute time series of 

current speed is 21.7 cm/s. CF, NOF, and POF fail to pass the skill assessment criteria, 

but MDNO and MDPO pass the criteria for all tests. The maximum ebb current speeds 

of the nowcast are less than the observed values with the RMSE being 17.6 cm/s. The 

time of the maximum ebb currents and slack currents in the nowcast falls about 30 to 40 

minutes behind those of the observations (the RMSE is 0.5 to 0.6 hours). For the 

directions of the currents, the mean directions of the nowcast and observed currents are 

116 and 127 degrees, respectively (the RMSE is 25 degrees). CF, NOF, POF, MDPO, 

and MDPO pass the criteria for the entire 6-minutes time series of the current directions. 

CF, NOF, POF, MDPO, and MDPO pass the criteria for the directions of the maximum 

ebb and flood currents. 

At Brown Shoal Light, DB, the mean velocity of 49.3 cm/s for the model nowcast is less 

than the observed value of 50.4 cm/s. The RMSE for the entire 6-minute time series of 

current speed is 14.3 cm/s. CF, NOF, and POF criteria, and the MDNO and MDPO pass 

the criteria for the amplitude of the ebb and flood. The maximum ebb and flow current 

speeds of the nowcast are larger than the observed values with the RMSE being around 

10 cm/s. The time of the maximum ebb currents and slack currents in the nowcasts falls 

about 25 to 40 minutes behind those of the observations (the RMSE is 0.4 to 0.6 hours). 

For the directions of the currents, the mean directions of the nowcast and observed 

currents are 234 and 227 degrees, respectively (the RMSE is 19 degrees). CF, NOF, POF, 

MDPO, and MDPO pass the criteria for the entire 6-minutes time series of the current 

directions. CF, NOF, POF, MDPO, and MDPO pass the criteria for the directions of the 

maximum ebb and flood currents. 

Semi-Operational Forecast

1) Water Level 

For the semi-operational forecasts, the RMSEs out to 24 hours are less than 17 cm at all 

stations. CF, NOF, POF, MDNO, MDPO, and WOF all pass the criteria throughout the 

24 forecasts hours for the stations below Philadelphia, PA. CF fails at some stations for 

the times of high and low water. At stations in the river sections at and above 

Philadelphia, PA, the SA targets are not met, but in general are not missed by large 

amounts accept at Burlington, NJ and Newbold, PA. At Lewes, DE, Cape May, NJ, and 

Chesapeake City, MD, the RMSEs and CFs were 9 cm, 9 cm, 13 cm and 91, 90, and 85, 

respectively. At Philadelphia, PA and Newbold, PA the RMSEs and CFs were 12 cm, 16 

cm, 83, and 66, respectively. At the Bay entrance stations of Cape May, NJ and Lewes, 

DE the RMSE increases from forecast hour 0 to forecast hour 24 by order 2 cm, while at 

Chesapeake City, MD the RMSE increases over the same forecast horizon by order 11 

cm. 
xi

2) Currents 

For Philadelphia, PA, the RMSEs of the current speed range remain between 19 and 20 

cm/s from forecast hour 0 to forecast hour 24. CF remains between 84% and 85% 

throughout the 24 forecast hours, and thus it does not degrade with time. POF, NOF, 

MDNO, and MNPO pass the criteria for all forecast hours. The maximum flood and ebb 

current speeds of the model forecasts are less than the observations with an RMSE of 18 

cm/s. The time of the modeled maximum flood and ebb currents occur about 24 ad 42 

minutes before the observations, respectively. CF and NOF fail to pass the criteria for all 

forecast hours. For current direction, RMSEs range from 21 to 15 degrees and improve 

with forecast age. NOF, CF, and POF all pass the criteria for all forecast hours. 

At Brown Shoal Light, DB, RMSEs of current speed range from 13 cm/s at forecast hour 

0 to 15 cm/s at forecast hour 24, and CF is above 95% (forecast hour 0) throughout the 24 

forecast hours. NOF, MDNO, and MDPO pass the criteria for the current speed forecasts 

throughout the 24 forecast hours. The RMSE of the maximum flood current speed is 9 

cm/s and the RMSE of the maximum ebb current speeds is 11 cm/s. CF, NOF, POF, 

MDNO, and MDPO pass the criteria for both the maximum flood and ebb current speeds. 

The RMSEs of the time of the maximum flood and ebb current speeds are 48 minutes and 

36 minutes, respectively, and the CF of them fails to pass the criteria (37% and 61%). 

Most of CF, NOF, POF, MDNO, and MDPO fail to pass the criteria for the start and end 

time of slack currents before flood and ebb. For current direction, the RMSEs range from 

14 degrees (forecast hour 0) to 21 degrees (forecast hour 24). CF, NOF, POF, MDNO, 

and MDPO pass the criteria for the directions of the maximum flood and ebb currents. 
xii

Base Map 1. Upper Delaware River Principal Measurement Locations. 
xiii

Base Map 2. Lower Delaware River and Bay Principal Measurement Locations. 
xiv
- 1 -

1. INTRODUCTION 

Over half of the U.S. population lives within 50 miles of the coast, and coastal areas 

serve as centers of commerce for tourism, transportation, recreation, fishing and other 

activities. Maritime accidents and groundings can cause substantial costs to this 

infrastructure, which is inextricably linked to the U.S. economy. The Physical 

Oceanographic Real Time Systems (PORTS) Program is a nationwide effort led by 

NOAA to improve maritime safety and efficiency and environmental quality. The 

Delaware River and Bay PORTS was installed during 2003 to provide water surface 

elevation, currents at prediction depth (4.7m below MLLW) as well as near-surface and 

near-bottom temperature and salinity, and meteorological information at the locations 

shown in Figure 1 and the PORTS screen capture in Figure 2. To complement the 

PORTS, a nowcast/forecast system is being developed within the High Performance 

Coastal Ocean Modeling Framework (Zhang et al., 2010a; Gross et al., 2006) as 

discussed by Aikman et al. (2008) and Zhang et al. (2010b). 

In conjunction with this effort, a National Ocean Service (NOS) Model Evaluation 

Environment (MEE) as described by Patchen (2008) was constructed for the Delaware 

River and Bay based on the NOS 1984-1985 Circulation Data Survey (Klavans et al., 

1986). To use these data it was necessary to perform considerable restoration efforts for 

the CTD data as described by Loeper (2006) and for the current and CT data as described 

by Richardson and Schmalz (2006). The purpose of the MEE is to provide for a 

consistent comparison of hydrodynamic models using the same geometrical, forcing, and 

validation data. In the context of the Delaware River and Bay Operational 

Nowcast/Forecast System (DBOFS), the MEE provides additional validation data 

particularly for currents and density that is not available within the PORTS. Therefore as 

a first step, the MEE results were used to further guide the development of DBOFS, 

which can provide forecasts of water levels, currents, salinity and temperature throughout 

the Delaware River, lower Bay and adjacent continental shelf. The Coast Survey 

Development Laboratory (CSDL) of the NOS is leading the development of this forecast 

system for operational implementation at NCEP under HPC-COMF with web outputs 

available from the NOS Center for Operational Oceanographic Products and Services 

(CO-OPS). 

The operational framework for implementation of coastal ocean modeling systems in 

NOS is referred to as the Coastal Ocean Modeling Framework (COMF). The first 

component of HPC-COMF is a standard file format for output of the model results. The 

DBOFS model application used ROMS (Haidvogel et al., 2008), and therefore the initial 

step in porting this model into COMF was to adjust the output into the COARDScompliant netCDF format that NOS supports. Another component of HPC-COMF is the 

use of standard scripts to access real-time data and forecasts used as input to the 

nowcast/forecast model simulations. The ROMS simulations were set up to perform four 

nowcasts (a simulation over the previous six hours up until the present time) and four 

forecasts (extending 48 hours into the future) per day using these standard HPC-COMF 

scripts. 
- 2 -

With these components of HPC-COMF in place for DBOFS, the final step in the 

transition to operational implementation is to quality assess the performance of a model 

application against standard NOS skill assessment criteria (NOS 1999, Hess et al., 2003, 

Zhang et al., 2010b). A software tool (Zhang et al., 2009) was developed to perform this 

skill assessment with models in the COMF environment, and the Delaware River and Bay 

model results were subsequently analyzed using this tool for different simulation 

scenarios (tides only, hindcasts, operational nowcasts and forecasts). Skill assessment 

score tables were compiled for each location where observations were available using the 

software package. 

Section 2 of this report focuses on an overview of the DBOFS with a brief description of 

Regional Ocean Modeling System (ROMS), the model grid for this application, the input 

files, and installation of DBOFS using the Subversion Versioning System (SVN). Section 

3 describes the model run scenarios for the astronomical tide simulation, a model 

hindcast simulation, and semi-operational nowcast/forecast simulations. A summary of 

the NOS skill assessment criteria and available observations in the Delaware River and 

Bay are summarized in Section 4. Next, the performance of DBOFS is reviewed based 

upon skill assessment criteria relating to water levels and currents in Sections 5 and 6, 

respectively. Lastly, the performance of DBOFS is reviewed based upon skill assessment 

criteria for salinity and temperature in Sections 7 and 8, respectively. Section 9 presents 

a summary of the DBOFS skill assessment. 
- 3 -

Figure 1. The NOAA/NOS/CO-OPS Delaware River and Bay PORTS. Note cu=current 

meter, wl=water level, wind=wind, at=air temperature, wt=water temperature, 

baro=barometric pressure, and ag=air gap. (From http://tidesandcurrents. 

 noaa.gov/ports/index.shtm?port=db) 
- 4 -

Figure 2. Screen capture of the NOS/CO-OPS Text-based Delaware River and Bay 

PORTS Screen for March 3, 2010 9:34 EST. (Available at 

http://tidesandcurrents.noaa.gov/ports/textscreen.shtml?port=db) 
- 5 -

2. MODEL SYSTEM OVERVIEW 

2.1 ROMS Hydrodynamic Model 

The physics of the ROMS model and many aspects of the computational scheme are 

equivalent to the widely used Princeton Ocean Model (Blumberg and Mellor, 1987; 

Blumberg and Herring, 1987). The ROMS model solves the three-dimensional, vertically 

hydrostatic, free surface, turbulent averaged equations of motions for a variable density 

fluid. The model uses a stretched or sigma vertical coordinate and Cartesian or 

curvilinear, orthogonal horizontal coordinates. Dynamically coupled transport equations 

for turbulent kinetic energy, turbulent length scale, salinity and temperature are also 

solved. The two turbulence parameter transport equations implement the Mellor-Yamada 

level 2.5 turbulence closure scheme (Mellor and Yamada, 1982) as modified by Galperin 

et al. (1988). The numerical scheme employed in ROMS to solve the equations of motion 

is summarized in Shchepetkin and McWilliams (2005). 

The ROMS model application to the lower Delaware River and Bay uses external forcing 

by water level, ocean density, wind, seal level atmospheric pressure, air temperature, 

relative humidity, downward long wave radiation, short wave radiation, and fresh water 

discharges entering the model domain. The model calculates water levels, velocity in 

three components, salinity, and temperature. The ROMS had been well calibrated for a 

simulation of the lower Delaware River and Bay for the 13-month period March 1984 – 

March 1985 (Schmalz, 2010), which extends the seven month MEE period (Patchen, 

2008; Lanerolle, 2008) using the NOS Delaware River and Bay Circulation Survey data 

for model-data intercomparison. 

2.2 ROMS Grid 

A 120 x 733 horizontal high resolution grid (HRG) was developed using the DELFT3D 

RGFGRID software package (Delft Hydraulics, 2004) with resolution order 3 km at the 

shelf break and order 100 m at the head of tide at Trenton, NJ. Resolution in the C&D 

Canal is 200 m with grid cell length ranges of [49 m, 6092 m] in the x-direction and [51 

m, 3053 m] in the y-direction. At head of tide at Trenton, NJ the Delaware River is 

represented by 3 grid cells across. In the grid construction process, three separate splines 

and grid segments were developed for the upper River, the C&D canal, and for the lower 

Bay-Shelf region, respectively. To generate the final grid, the grid segments were 

combined using the active-passive option and then the grid was orthogonalized. Grid 

point locations were reviewed and edited as necessary to improve orthogonality. The 

SMS software package (Brigham Young University Environmental Modeling Research 

Laboratory, 2006) was used to place and edit the bathymetry on the grid. Bathymetric 

information was obtained from the NOAA’s National Geophysical Data Center. In Figure 

3, the new HRG in the C&D canal region is shown. Note the ability of the grid to exactly 

follow the canal and to represent the main navigation channel bathymetric features as 

shown in Figure 4. 
- 6 -

Figure 3. Map depicting Delaware River and Bay DELFT-3D High Resolution Grid in 

the C&D Canal Region. Splines are constructed through the appropriate points 

along each coordinate direction. Within each rectangle formed by the 

intersection of the splines, the number of grid cells in each coordinate direction 

is specified. 

Figure 4. Map depicting bathymetry with respect to Model Datum in the C&D Canal 

Region. Each dot corresponds to a grid cell center with the darker shadings 

indicating the navigation channel. 
- 7 -

2.3. ROMS Input and Output Files 

The master input file, nos.DBOFS.ROMS.in, is required for all model runs. The 

information in DBOFS.ROMS.in provides model runtime control parameters, output 

control, and physical information describing the model domain and external forcing 

functions. Many options in the code are activated through the C precompiler using 

CPPDEF options. ROMS as such represents a family of three-dimensional finite 

difference approaches. Further details on the CPPDEF options and a more detailed 

explanation about the master input file can be found in Urizar and Lanerolle (2005) and 

on the ROMS website (http://myroms.org). 

Additional input netCDF files required in order to run the ROMS model are listed below, 

where r* and t* correspond to the run type (nowcast,forecast) and time stamp 

yyyymdd.t{hr}z, respectively. 

 File Name Comments 

 

nos.DBOFS.ROMS.nc Grid information 

nos.DBOFS.init.nowcast.t*.nc Initial conditions 

nos.DBOFS.obc.t*.nc Boundary Conditions 

nos.DBOFS.met.t*.nc Wind and atmospheric pressure 

nos.DBOFS.river.r*.t*.nc River inputs 

nos.DBOFS.hflux.r*.t*.nc Heat Fluxes 

nos.DBOFS.ROMS.tides.nc Tidal Forcings 

The three major netCDF files generated by the ROMS model are as follows: 

File Name Comments 

nos.DBOFS.rst.r*.t*.nc Restart information 

nos.DBOFS.fields.r*.t*.nc Hydrodynamic fields 

nos.DBOFS.stations.r*.t*.nc Station time series 

2.4. Installation Using SVN System 

SVN is a software package which coordinates the separate version of the code for each 

model developer. ROMS is distributed by the ROMS Group at Rutgers University using 

the SVN system. This software package keeps all the programs in a directory structure, 

which allows control over updated versions, so users/developers can install the most 

updated version of ROMS for use on the user’s local computer. The preferred approach is 
- 8 -

to run ROMS on NOAA’s CCS operated by the NWS’s National Centers for 

Environmental Prediction (NCEP), where all HPC-COMF related directories and 

programs are stored. 
- 9 -

3. MODEL RUN SCENARIO DEFINITION 

To evaluate the performance of the DBOFS under a range of conditions, the NOS skill 

assessment criteria are applied to four model simulation scenarios. These include a 

simulation of just the tides, a hindcast simulation, the nowcast simulations and the 

forecast simulations. Each is discussed in more detail below. Tide and hindcast 

simulation water level stations are shown in the upper River in Figure 5 and in the lower 

River and Bay in Figure 6. The majority of the current stations are in the river from 

Philadelphia, PA down through the Bay entrance and near shelf as shown in Figure 7 for 

the tidal and hindcast simulations. Observed salinity and temperature are derived from 

the CT sensors located at the current meter locations during the hindcast simulation. For 

the nowcast/forecast simulations all measurement locations are shown at the NOS 

PORTS stations in Figure 1. 

3.1. Astronomical Tides Only Simulation 

For the astronomical tides only simulation, water levels along the open ocean boundary 

are forced using the harmonic constants as derived from the ADCIRC model for the 

Western North Atlantic Ocean on the East Coast 1995 grid as developed by Myers (2007, 

personal communication) following Mukai et al. (2001). River discharge inflows were 

specified as average daily climatological values. The salinity and temperature at the open 

boundaries were determined from NOAA’s World Ocean Atlas 2001 (Conkright et al., 

2002). The initial salinity and temperature fields were determined using historical 

circulation survey CT and CTD data (Klavans et al., 1986). Heat flux forcing data were 

determined from the NCEP North American Regional Reanalysis (NARR), while winds 

were set to zero, and sea level atmospheric pressure was set to 1013 mb. 

3.2. Model Hindcast Simulation 

For the hindcast simulation, the ocean boundary of the grid is forced with a superposition 

of the subtidal water levels at Cape May, NJ (shown in Figure 1) and predicted tides. The 

subtidal water level signal at Cape May, NJ is empirically reduced by 30% to prescribe 

the subtidal water level along the outer boundary. The predicted tides are based on the 

same techniques used for the tide only simulation. At the Chesapeake Bay end of the 

C&D canal the subtidal water level was based on Chesapeake City, MD as determined 

via a linear regression (bias=0.003, gain=0.784) from the Baltimore, MD water level 

observations. The NOS accepted harmonic constants at Chesapeake City, MD were 

slightly adjusted to provide the corresponding tidal forcing. 

The initial and boundary conditions for salinity and temperature were the same as those 

used in the hindcast. 
- 10 -

Figure 5. Upper Delaware River NOS Water Level Locations: Tidal and Hindcast 

Simulations. 
- 11 -

Figure 6. Lower Delaware River and Bay NOS Water Level Locations: Tidal and 

Hindcast Simulations. 
- 12 -

Figure 7. Lower Delaware River and Bay NOS Current Locations: Tidal and Hindcast 

Simulations. 
- 13 -

 At the upstream boundary, DBOFS specifies the Delaware River inflow over three grid 

cells (0.3, 0.4, 0.3) of the USGS measured inflows at Trenton, NJ. Freshwater discharge 

from the following 11 additional tributaries was specified in the model: Schuylkill River, 

Maurice River, Salem River, Cohansey River, Neshaminy Creek, Frankford Creek, 

Raccoon Creek, Brandywine Creek, Chester Creek, Millsboro Pond Outlet, and Roach 

Marsh. Discharge values were determined from USGS streamflow gage readings. Salinity 

is assumed zero. Water temperatures were specified from nearby CT stations. 

Wind and sea level atmospheric pressure forcing fields were provided from a Barnes 

(1973) interpolation of surface marine weather observations at 10 meteorological 

stations. Radiation fluxes were derived from a Barnes (1973) interpolation of the NARR 

product at these same 10 meteorological stations. 

3.3. Semi-Operational Nowcast/Forecast Simulation 

For the nowcasts, the subtidal water levels along the open ocean boundary are determined 

using adjustment of the NOAA Extratropical Storm Surge Model (ETSS) latest hourly 

subtidal forecast guidance. The adjustment is determined by averaging the hourly subtidal 

anomalies at Ocean City, MD and Cape May, NJ over the previous six-hour nowcast 

period and ramping the latest subtidal values to the adjusted level and subsequent forecast 

values. The astronomical tide is determined from the tidal constituent netCDF file and 

the application of the latest node factor and equilibrium argument values at six-minute 

intervals. The total open ocean boundary six-minute values are the sum of the six-minute 

interpolated hourly subtidal and six-minute tidal values. A similar process is used at the 

C&D canal boundary with the subtidal and tidal values based on the Chesapeake City, 

MD observations and tidal constituents. Salinity and temperature along the open ocean 

boundary is obtained from adjusted Navy Coastal Ocean Model (NCOM) forecast 

guidances. The adjustment is determined by averaging the salinity and temperature 

hourly anomalies at Ocean City, MD and Cape May, NJ over the previous six-hour 

nowcast period and ramping the latest values to the adjustment and subsequent forecast 

values. If the anomalies are not available, they are determined from NOAA’s World 

Ocean Atlas 2005 climatology (Locarnini et al., 2006). Wind at 10m above ground level 

(AGL), sea level atmospheric pressure, air temperature at 2m (AGL), and relative 

humidity at 2m (AGL) from the NCEP Real-Time Mesoscale Analysis (RTMA) and 

short wave radiation at 2m (AGL) and downward long wave radiation at 2m (AGL) fields 

from the NCEP North American Mesoscale (NAM) numerical weather prediction model 

are interpolated at each hour to the DBOFS grid to provide the nowcast meteorological 

forcings. Finally, real-time river discharges and water temperatures are downloaded from 

the USGS with salinity assumed zero to specify inflow conditions. The nowcasts are run 

every six hours. 

Forecasts out to forty-eight hours are made with DBOFS four times a day. Along the 

open ocean boundary, water levels are specified as a superposition of the tide predictions 

and the subtidal water level forecasts using the same procedures used during the nowcast. 

Note the nowcast adjustments are persisted for the forecast period. A similar approach is 

used for the salinity and temperature open boundary conditions. Wind at 10m (AGL), sea 
- 14 -

level atmospheric pressure, air temperature at 2m (AGL), relative humidity at 2m (AGL), 

short wave radiation at 2m (AGL), and, downward long wave radiation at 2m (AGL) 

fields at three-hour intervals from the NCEP NAM numerical weather prediction model 

are interpolated to the DBOFS grid to provide the forecast meteorological forcings. River 

discharges are persisted from the latest observations from the same USGS river gauges 

used in the nowcasts. Salinity is assumed zero. Water temperatures were specified from 

USGS streamflow stations. 
- 15 -

4. SKILL ASSESSMENT STATISTICS AND DATA 

4.1. Skill Assessment Statistics 

Skill assessment is an objective measurement of the performance of a model when 

systematically compared with observations. NOS skill assessment criteria were created 

for evaluating the performance of circulation models (NOS, 1999; Hess et al., 2003), and 

a software package was subsequently developed to compute these criteria using standard 

file formats output from the models (Zhang et al., 2009). The software can compute the 

skill assessment scores automatically using files containing observations, predictions, and 

nowcast/forecast model results. A standard suite of skill assessment statistics is defined in 

Table 1 (Hess et al., 2003). The target frequencies of the associated statistics are, 

 CF(X) 90%, POF(2X) 1%, NOF(2X) 1%, WOF(2X) 0.5% 

 MDPO(2X)  L, MDNO(2X)  L 

Table 1. Skill Assessment Statistics (from Hess et al., 2003) 

Variable Explanation 

Error The error is defined as the predicted value, p, minus the reference (observed or 

astronomical tide value, r : ei = pi - ri. 

SM Series Mean. The mean value of a series y. Calculated as y N yi

i

N

 

1

1

. 

RMSE Root Mean Square Error. Calculated as RMSE e N i

i

N

 

1 2

1

.

SD Standard Deviation. Calculated as SD e e N i

i

N

  



1

1

1

2 ( )

CF(X) Central Frequency. Fraction (percentage) of errors that lie within the limits +X. 

POF(X) Positive Outlier Frequency. Fraction (percentage) of errors that are greater than X. 

NOF(X) Negative Outlier Frequency. Fraction (percentage) of errors that are less than -X. 

MDPO(X) Maximum Duration of Positive Outliers. A positive outlier event is two or more 

consecutive occurrences of an error greater than X. MDPO is the length of time (based 

on the number of consecutive occurrences) of the longest event. 

MDNO(X) Maximum Duration of Negative Outliers. A negative outlier event is two or more 

consecutive occurrences of an error less than -X. MDNO is the length of time (based on 

the number of consecutive occurrences) of the longest event. 

WOF(X) Worst Case Outlier Frequency. Fraction (percentage) of errors that, given an error of 

magnitude exceeding X, either (1) the simulated value of water level is greater than the 

astronomical tide and the observed value is less than the astronomical tide, or (2) the 

simulated value of water level is less than the astronomical tide and the observed value 

is greater than the astronomical tide. 
- 16 -

There are three types of data sets (Table 2): Group 1, a time series of values at uniform 

time intervals; Group 2, a set of values representing the consecutive occurrences of an 

event (such as high water or slack water); and Group 3, a set of values representing a 

forecast valid at a given projection time. The acceptable error limits (X) and maximum 

duration limits (L) for the associated variable are presented in Table 3. 

Table 2. Data series groups and the variables in each. Note that upper case letters 

indicate a prediction series (e.g., H), and lower case letters (e.g., h) indicate a reference 

series (observation or astronomical prediction). Slack water is defined as a current speed 

less than 1⁄2 knot. The direction is computed only for current speeds greater than 1⁄2 knot 

(from Hess et al., 2003). 

Group Variable Symbol 

Group 1 Water level H, h 

(Time Series) Current speed U, u 

 Current direction D,d 

 Salinity S, s 

 Water temperature T,t 

Group 2 Amplitude of high water AHW,ahw 

(Values at a Tidal Stage) Amplitude of low water ALW,ahw 

 Time of high water THW,thw 

 Time of low water TLW,tlw 

 Amplitude of maximum flood current AFC,afc 

 Amplitude of maximum ebb current AEC,aec 

 Time of maximum flood current TFC,tfc 

 Time of maximum ebb current TEC,tec 

 Direction of current at maximum flood DFC,dfc 

 Direction of current at maximum ebb DEC,dec 

 Time of start of current slack before flood TSF,tsf 

 Time of end of current slack before flood TEF, tef 

 Time of start of current slack before ebb TSE, tse 

 Time of end of current slack before ebb TEE, tee 

Group 3 Water level at forecast projection time of nn hrs Hnn, hnn 

(Values from a Forecast) Current speed at forecast projection time of nn hrs Unn, unn 

 Current direction at forecast projection time of nn hrs Dnn, dnn 

 Salinity at forecast projection time of nn hrs Snn, snn 

 Water temperature at forecast projection time of nn hrs Tnn, tnn 

Table 3. Acceptance error limits (X) and the maximum duration limits (L) 

variables X L (hours) 

H, Hnn, AHW,ALW 15 cm 24 

THW, TLW 0.5 hours 25 

U, Unn, AFC, AEC 0.26 m/s 24 

TFC, TEC 0.5 hours 25 

TSF, TEF, TSE, TEE 0.25 hours 25 

D, Dnn, 22.5 degrees 24 

DFC, DEC 22.5 degrees 25 
- 17 -

4.2. Data 

For the thirteen-month (1 March 1984 through 31 March 1985) DBOFS astronomical tide 

and hindcast simulations, skill assessment scores were computed at 9 locations for water 

levels (Table 4) and at 19 locations for currents (Table 5) where the observations are 

available in both 1984 and 1985 from the NOS historical circulation survey as reported 

by Klavans et al. (1986). Refer to Figures 5 and 6 for water level and Figure 7 for current 

station locations. The accepted harmonic constants for tidal water levels at the thirteen 

water level stations derived by CO-OPS were used to make water level tidal predictions 

and were also used in comparisons with the modeled harmonic constants obtained 

through harmonic analysis of water level time series from the astronomical tide 

simulation. Harmonic constants of the water currents were obtained by harmonicallyanalyzing the NOS historical circulation data time series and were used to make tidal 

current predictions via the methods described by Shureman (1958). For salinity and 

temperature, hindcast skill assessment scores were computed at the 20 stations in Table 6 

and at the 21 stations in Table 7, respectively. 

For the skill assessment of the nowcast and forecast simulations, the verified water level 

observations at the twelve stations (Table 8) and PORTS current meter observations 

(Table 9) over the three month period 15 April, through 15 July, 2010 were obtained 

from CO-OPS. Salinity skill scores were computed at the three stations given in Table 10, 

while temperature skill scores were computed at the nine stations given in Table 11. 

Refer to Figure 1 for PORTS station locations. 

Table 4. NOS water level stations used in the astronomical tide and hindcast skill 

assessment periods: 1 March 1984 – 31 March 1985 

Station ID Name Latitude Longitude Data Period (Gap 

in (days) 

857-0280 Ocean City, MD 38.327 -75.083 4/8-1/2/1985 (4.42) 

857-3927 Chesapeake City, 

MD 

39.525 -75.810 6/7-11/6/1984 (0.) 

853-6110 Cape May, NJ 38.968 -74.960 4/1-4/2/1984 (0.) 

855-7380 Lewes, DE 38.782 -75.120 3/1-4/2/1984 (0.) 

855-5889 Brandywine 

Shoal, DE 

38.983 -75.113 3/18-4/2/1984 (0.) 

855-1910 Reedy Point, DE 39.558 -75.573 3/1-1/2/1985 (0.) 

854-5530 Philadelphia Pier 

11, PA 

39.953 -75.138 3/1-1/2/1985 

(14.17) 

853-9094 Burlington, NJ 40.080 -74.873 3/1-4/6/1984 

(14.17) 

853-9993 Trenton, NJ 40.188 -74.755 3/1-1/2/1985 

(14.17) 
- 18 -

Table 5. NOS current stations used in the astronomical tide and hindcast skill assessment 

periods: 1 March 1984 – 31 March 1985 

Station ID Latitude Longitude PCD (deg T) Depth (m) Data Period 

 

002 38.781 -75.043 327. 3.96 4/2-12/2/1984 

003 38.859 -75.024 325. 5.49 4/3-11/21/1984 

005 38.906 -74.978 313. 4.57 4/3-11/21/1984 

012 38.785 -74.368 239. 7.92 10/20-11/19/1984 

016 39.201 -74.413 233. 7.32 3/8-11/27/1984 

017 39.051 -74.072 257. 7.62 4/17-10/9/1984 

018 38.896 -75.211 314. 4.27 9/18-10/18/1984 

019 38.941 -75.105 339. 5.18 9/18-10/18/1984 

020 38.985 -74.988 340. 4.57 9/18-10/10/1984 

021 39.008 -74.284 316. 4.57 9/19-10/18/1984 

022 39.016 -75.251 332. 4.27 5/9-10/18/1984 

023 39.039 -75.158 346. 3.66 3/8-11/28/1984 

024 39.067 -75.070 345. 3.96 5/9-10/18/1984 

025 39.078 -74.981 1. 3.96 9/18-10/18/1984 

033 39.269 -75.348 323. 3.66 3/8-9/11/1984 

047 39.795 -75.435 63. 4.57 6/14-4/3/1985 

051 39.880 -75.173 92. 5.18 3/6/-4/3/1985 

052 39.986 -75.063 36. 6.10 3/6-4/6/1984 

154 39.561 -75.570 264. 4.57 6/20-4/3/1985 
- 19 -

Table 6. NOS salinity stations used in the hindcast skill assessment period: 

1 March 1984 – 31 March 1985 

Station ID Latitude Longitude Depth (m) Data Period 

002 38.781 -75.043 3.96 4/2-12/2/1984 

003 38.859 -75.024 5.49 4/3-11/21/1984 

005 38.906 -74.978 4.57 4/3-11/21/1984 

011 38.788 -74.711 7.62 11/4-11/19/1984 

012 38.785 -74.368 7.92 10/20-11/19/1984 

016 39.201 -74.413 7.32 3/8-11/27/1984 

018 38.896 -75.211 4.27 9/18-10/18/1984 

020 38.985 -74.988 4.57 9/18-10/18/1984 

021 39.008 -74.284 4.57 9/18-10/10/1984 

022 39.016 -75.251 4.27 5/9-10/18/1984 

023 39.039 -75.158 3.66 3/8-11/28/1984 

024 39.067 -75.070 3.96 5/9-10/18/1984 

033 39.269 -75.348 3.66 3/8-9/11/1984 

047 39.795 -75.435 4.57 6/14-4/3/1985 

050 39.967 -75.119 7.32 3/22-4/6/1984 

051 39.880 -75.173 5.18 3/6/-4/2/1985 

052 39.986 -75.063 6.10 3/6-4/6/1984 

053 40.076 -74.887 6.40 3/6-3/22/1984 

054 40.134 -74.756 4.57 3/6-3/26/1984 

154 39.561 -75.570 4.57 6/20-4/2/1985 

Table 7. NOS temperature stations used in the hindcast skill assessment period: 

1 March 1984 – 31 March 1985 

Station ID Latitude Longitude Depth (m) Data Period 

002 38.781 -75.043 3.96 4/24-12/2/1984 

003 38.859 -75.024 5.49 4/3-11/21/1984 

005 38.906 -74.978 4.57 4/3-11/21/1984 

011 38.788 -74.711 7.62 11/4-11/19/1984 

012 38.785 -74.368 7.92 10/20-11/19/1984 

016 39.201 -74.413 7.32 3/8-11/27/1984 

017 39.051 -74.072 7.62 4/17-10/9/1984 

018 38.896 -75.211 4.27 9/18-10/18/1984 

019 38.941 -75.105 5.18 9/18-10/18/1984 

020 38.985 -74.988 4.57 9/18-10/10/1984 

021 39.008 -74.284 4.57 9/18-10/10/1984 

022 39.016 -75.251 4.27 5/9-10/18/1984 

023 39.039 -75.158 3.66 3/8-11/28/1984 

024 39.067 -75.070 3.96 5/9-10/18/1984 

033 39.269 -75.348 3.66 3/8-9/11/1984 

047 39.795 -75.435 4.57 6/14-4/2/1985 

050 39.967 -75.119 7.32 3/22-4/6/1984 

051 39.880 -75.173 5.18 3/6/-4/2/1985 

052 39.986 -75.063 6.10 3/6-4/6/1984 

054 40.134 -74.756 4.57 3/6-3/26/1984 

154 39.561 -75.570 4.57 9/27-4/2/1985 
- 20 -

Table 8. NOS water level stations used in the nowcast/forecast skill assessment period: 

15 April – 15 July 2010 

Table 9. NOS current stations used in nowcast/forecast skill assessment period: 

15 April – 15 July 2010 

Station ID Name Latitude Longitude PCD (deg T) Data Gap (days) 

db0301 Philadelphia SL 39.946 -75.140 19. 0. 

db0501 Brown Shoal 38.922 -75.100 336. 2.18 

Table 10. NOS salinity stations used in nowcast/forecast skill assessment period: 

15 April – 15 July 2010 

Station ID Name Latitude Longitude Data gap (days) 

853-9094 Burlington, NJ 40.080 -74.873 0. 

855-5889 Brandywine Shoal, DE 38.983 -75.113 0. 

853-7121 Ship John Shoal, NJ 39.305 -75.375 0. 

Table 11. NOS temperature stations used in nowcast/forecast skill assessment period: 15 

April – 15 July 2010 

Station ID Name Latitude Longitude Data Gap (days) 

854-8989 Newbold 40.136 -74.753 0. 

855-5889 Brandywine Shoal, DE 38.983 -75.113 0. 

855-7380 Lewes, DE 38.782 -75.120 0. 

853-9094 Burlington, NJ 40.080 -74.873 0. 

854-5240 Philadelphia USCG, PA 39.933 -75.142 0. 

855-1762 Delaware City, DE 39.582 -75.588 0. 

853-7121 Ship John Shoal, NJ 39.305 -75.375 0. 

853-6110 Cape May, NJ 38.968 -74.960 0. 

857-3927 Chesapeake City, MD 39.525 -75.810 0.58 

Station ID Name Latitude Longitude MD -MSL 

(m) 

Data Gap 

(days) 

857-3927 Chesapeake City, 

MD 

39.525 -75.810 0. 0. 

853-6110 Cape May, NJ 38.968 -74.960 0. 0. 

855-7380 Lewes, DE 38.782 -75.120 0. 0. 

855-5889 Brandywine Shoal, 

DE 

38.983 -75.113 0. 0. 

853-7121 Ship John Shoal, NJ 39.305 -75.375 0. 0. 

855-1910 Reedy Point, DE 39.558 -75.573 0. 0. 

855-1762 Delaware City, DE 39.582 -75.588 0. 0. 

854-0433 Marcus Hook, PA 39.812 -75.410 -0.04 0. 

854-5240 Philadelphia USCG, 

PA 

39.933 -75.142 -0.11 0. 

853-8886 Tacony Bridge, NJ 40.012 --75.043 -0.14 0. 

853-9094 Burlington, NJ 40.080 -74.873 -0.17 0. 

854-8989 Newbold, PA 40.136 -74.753 -0.18 0. 
- 21 -

5. RESULTS FOR WATER LEVEL SKILL ASSESSMENT 

 

Skill assessment statistics were calculated for each DBOFS model scenario (astronomical 

tides only, hindcast, nowcast and forecast). The NOS skill assessment software was used 

to automatically generate skill assessment tables for each of the stations mentioned in 

Section 4.2. Tables of observed and modeled tidal harmonic constants were also 

generated using a least squares harmonic analysis algorithm in the skill assessment 

software. The results of the skill assessment for each scenario are presented below. 

5.1. Astronomical Tide Only Simulation 

The astronomical tidal simulation was made for the thirteen month period March 1984 

through March 1985, and water level time series were saved in six minute intervals at 

locations where observations were available. DBOFS was forced with water level ocean 

boundary conditions derived from the tidal predictions at each ocean open boundary cell 

based on adjusted ADCIRC Western North Atlantic tidal inversion harmonic constants 

from Myers (2007, personal communication). For the Sa and Ssa long period constituents 

the values at Cape May, NJ were used. For the C&D Canal open boundary, the harmonic 

constants at Chesapeake City, MD including the Sa and Ssa long period constituents were 

used. Refer to Schmalz (2010) for details in the adjustments of the tidal inversion 

harmonic constants and for the development of the spatially varying bottom roughness 

coefficient zone values. At the Bay entrance the M2 dominant constituent errors were at 

Cape May, NJ -3.1 cm RMSE in amplitude and -1.3o

 in phase and at Lewes, DE 0.7 cm 

RMSE in amplitude and -1.8o in phase error. At Chesapeake City, MD errors in M2 were 

-4.1 cm RMSE in amplitude and 4.9o in phase. At Reedy Point, DE errors in M2 were -8.4 

cm RMSE in amplitude and -1.2o

 in phase. As one proceeds upriver, M2 errors at 

Philadelphia, PA are -4.3 cm RMSE in amplitude and -4.2o in phase and at Trenton, NJ 

are -2.5 cm RMSE in amplitude and -10.9o

 in phase. The harmonic constants derived 

from the simulated water level time series are compared with the CO-OPS accepted 

harmonic constants in Appendix A. 

The standard suite of statistics was computed for comparing the simulated and predicted 

tidal water level time series and is presented in Appendix B (Scenario: Tidal Simulation 

Only). CF, NOF, POF, MDNO, MDPO, and WOF all pass the criteria for the entire time 

series, as do the amplitudes of high and low water for most stations in the Delaware Bay. 

CF fails at some stations for the times of high and low water. At stations in the river 

sections at and above Philadelphia, PA, the SA targets are not met, but in general are not 

missed by large amounts except at Burlington, NJ and Trenton, NJ near the head of tide. 

At Lewes, DE, Cape May, NJ, and Chesapeake City, MD, the RMSEs and CFs were 8 

cm, 8 cm, 10 cm and 96, 93, and 88, respectively. At Philadelphia, PA and Trenton, NJ 

the RMSEs and CFs were 13 cm, 24 cm, 77, and 50, respectively. 
- 22 -

5.2. Hindcast Simulation 

The DBOFS simulated water level time series were compared with the NOS historical 

observations from the Delaware River and Bay Circulation Survey (Klavans et al., 1985) 

at the nine water level stations over the thirteen month period March 1984 through March 

1985. The standard suite of statistics for this simulation is presented in Appendix B 

(Scenario: Hindcast). The vertical reference datum is a common issue for total water level 

comparisons of model simulations and observations. The model simulation has a single 

well defined mean sea level datum that is equal to zero (the sea surface with no slope). 

The mean sea level reported with the observations is a local value calculated from data 

which is generally not the same as the value of model mean sea level because of fresh 

water effects, meteorological forcing, and baroclinic effects. Results are shown for two 

vertical datums. In the first case, the vertical datum is considered to be equal to the MSL 

of the astronomical tide at each station over the thirteen month period. In the second case, 

the vertical datum is considered to equal to tidal epoch MSL for stations below Marcus 

Hook, PA, while for the river stations above Marcus Hook, PA the vertical datum is 

considered the North American Vertical Datum of 1988 (NAVD88). For the stations in 

the Bay below Marcus Hook, PA the results are comparable for both cases, while above 

Marcus Hook, PA the results for the second case are improved over those of case one and 

are considered to more accurately include the baroclinic effects and are discussed here. 

CF, NOF, POF, MDNO, MDPO, and WOF all pass the criteria for the entire time series, 

as do the amplitudes of high and low water for most stations in the Delaware Bay. CF 

fails at some stations for the times of high and low water. At stations in the river sections 

at and above Philadelphia, PA, the SA targets are not met, but in general are not missed 

by large amounts accept at Burlington, NJ and Trenton, NJ near the head of tide. At 

Lewes, DE, Cape May, NJ, and Chesapeake City, MD, the RMSEs and CFs were 12 cm, 

12 cm, 11 cm and 83, 85, and 84, respectively. At Philadelphia, PA and Trenton, NJ the 

RMSEs and CFs were 13 cm, 21 cm, 87, and 79, respectively. 

5.3. Semi-Operational Nowcast/Forecast Simulation 

DBOFS semi-operational nowcasts and forecasts were made during the three-month 

period 15 April through 15 July 2010, and the results from these simulations were 

concatenated into continuous time series for analysis using the skill assessment software. 

Tables in Appendix B (SCENARIO: Semi-Operational Nowcast) show the skill 

assessment statistics for the semi-operational nowcast for both vertical datums. Here we 

discuss the results for the second case. CF, NOF, POF, MDNO, MDPO, and WOF all 

pass the criteria for the entire time series, as do the amplitudes of high and low water for 

most stations in the Delaware Bay. CF fails at some stations for the times of high and 

low water. At stations in the river sections at and above Philadelphia, PA, the SA targets 

are not met, but in general are not missed by large amounts except at Burlington, NJ and 

Newbold, PA. At Lewes, DE, Cape May, NJ, and Chesapeake City, MD, the RMSEs and 

CFs were 9 cm, 9 cm, 6 cm and 93, 94, and 98, respectively. At Philadelphia, PA and 

Newbold, PA the RMSEs and CFs were 14 cm, 21 cm, 83, and 59, respectively. 

 
- 23 -

For the semi-operational forecasts, the RMSEs out to 24 hours are less than 17 cm at all 

stations. CF, NOF, POF, MDNO, MDPO, and WOF all pass the criteria throughout the 

24 forecasts hours for the stations below Philadelphia, PA. CF fails at some stations for 

the times of high and low water. At stations in the river sections at and above 

Philadelphia, PA, the SA targets are not met, but in general are not missed by large 

amounts accept at Burlington, NJ and Newbold, PA. At Lewes, DE, Cape May, NJ, and 

Chesapeake City, MD, the RMSEs and CFs were 9 cm, 9 cm, 13 cm and 91, 90, and 85, 

respectively. At Philadelphia, PA and Newbold, PA the RMSEs and CFs were 12 cm, 16 

cm, 83, and 66, respectively. At the Bay entrance stations of Cape May, NJ and Lewes, 

DE the RMSE increases from forecast hour 0 to forecast hour 24 by order 2 cm, while at 

Chesapeake City, MD the RMSE increases over the same forecast horizon by order 11 

cm. Time series plots of representative water level stations are shown against 

observations in Figure 8, for the tidal prediction, nowcast, and forecast. 

Figure 8. Water level time series comparison for DBOFS’ semi-operational nowcasts 

during JD 120-135, 2010 at eight NOS stations. 
- 24 -
- 25 -

6. SKILL ASSESSMENT OF WATER CURRENTS 

Skill assessment for DBOFS currents was made at nineteen locations from the NOS 

Delaware River and Bay circulation survey in 1984 and 1985 (Klavans et al., 1986). The 

observations of water currents at the depth shown in Table 5 below the Mean Lower Low 

Water (MLLW) were compared with the model results at the corresponding depth. The 

current observations were not filtered. 

6.1. Tidal Simulation Only Simulation 

The observed harmonic constants of the currents derived from the historical current meter 

time series are compared with the modeled harmonic constants derived from the 13-

month, March 1984 through March 1985, tide-only simulations in Appendix D. The 

results for five representative stations, throughout the estuary are next considered. 

The principal current directions of the modeled and observed currents are very close, with 

differences between the modeled and observed values of 6, 1, 2, 5, and 1 degrees at 

Station 5 at the Bay entrance , Station 23 in the lower mid-Bay channel , Station 33 in the 

upper Bay channel, Station 154 at C&D canal, and Station 52 in the mid-River near 

Philadelphia, PA, respectively. For the dominant M2 constituent, the modeled amplitude 

is nearly identical to the observed value at the Bay entrance Station 5, while at Stations 

23, 33, 154, and 52 the model amplitudes are smaller than the observed values with 

differences of -1.6, -22.9, -16.6, and -44.2 cm/s, respectively. The phase differences 

between the modeled and observed M2 currents are 3.0, -4.2, -7.1, -10.7, and -18.9 

degrees at Stations 5, 23, 33, 154, and 52, respectively. For the second largest 

constituent, N2, amplitude differences are 3.5, 0.3, -4.0, -2.6, and -9.1 cm/s at Stations 5, 

23, 33, 154, and 52, respectively, and phase differences between the model and observed 

values are 6.4 (Station 5), -2.2 (Station 23), -39.4 (Station 33), -37.6 (Station 154), and -

24.1 degrees (Station 52). 

The tide-only model simulation was compared with the tidal current prediction using the 

observed harmonic constants. The skill assessment score tables listed in Appendix E 

show the results from these comparisons. The results for five representative stations, 

throughout the estuary are next considered. 

At Station 5 (Bay entrance), the modeled and observed mean velocity values are 51.9 

cm/s and 50.9 cm/s, respectively and the RMSE between the simulated and observed 

current speeds is 9.3 cm/s. The CF, NOF, POF, MDNO, and MDPO statistics all pass the 

criteria for the entire 6-minute current speed time series, and the amplitudes of maximum 

flood and ebb currents. CF, NOF, POF, MDNO, MDPO all pass the criteria, but CF fails 

for the start time of slack currents before ebb, TSE=86.5. 

At Station 23 (lower mid-Bay channel), the modeled and observed mean current speeds 

are 42.9 cm/s and 43.1 cm/s, respectively. The RMSE of the current speeds is 6.6 cm/s. 

The CF, NOF, POF, MDNO, and MDPO statistics all pass the criteria for the entire 6-

minute current speed time series, and the amplitudes of maximum flood and ebb currents. 
- 26 -

CF, NOF, POF, MDNO, MDPO all pass the criteria, but CF fails for the end times of 

slack currents before ebb and flood, TEE =88.1 and TEF=89.3. 

At Station 33 (upper mid-Bay channel), the modeled and observed mean current speeds 

are 48.0 cm/s and 61.3 cm/s, respectively. The RMSE of the current speeds is 22.9 cm/s. 

The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria for the entire 6-

minute current speed time series, and the amplitudes of maximum flood and ebb currents 

and times of maximum flood and ebb and start and end times of the slack before flood 

and slack before ebb. 

At Station 154 (at the C&D canal entrance), the modeled and observed mean current 

speeds are 37.5 cm/s and 49.2 cm/s, respectively. The RMSE of the current speeds is 24.9 

cm/s. The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria for the entire 

6-minute current speed time series, and the amplitudes of maximum flood and ebb 

currents and times of maximum flood and ebb and start and end times of the slack before 

flood and slack before ebb. 

At Station 52 (in the mid-River near Philadelphia), the modeled and observed mean 

current speeds are 18.8 cm/s and 46.7 cm/s, respectively. The RMSE of the current 

speeds is 34.1 cm/s. The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria 

for the entire 6-minute current speed time series, and the amplitudes of maximum flood 

and ebb currents and times of maximum flood and ebb and start and end times of the 

slack before flood and slack before ebb. 

In Appendix F, the tidal simulation current directions are compared to the predicted tidal 

current directions over the same thirteen-month period. At Stations 5, 23, 33, 154, and 52, 

the RMSEs in direction are 6.5o

, 4.1o, 5.5o, 6.1o, and 1.8o, respectively. The CF, NOF, 

POF, MDNO, and MDPO statistics all pass the criteria for the entire 6-minute current 

direction time series at most stations. 

6.2. Hindcast Simulation 

 

The observed NOS historical current meter time series were compared with the 13-month 

DBOFS hindcast simulation from March 1984 through 1985 at nineteen locations. The 

skill assessment score tables listed in Appendix G show the results from these 

comparisons. The results for five representative stations, throughout the estuary are next 

considered. 

At Station 5 (Bay entrance), the modeled and observed mean velocity values are 53.2 

cm/s and 52.4 cm/s, and the RMSE between the simulated and observed current speeds is 

33.2 cm/s. The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria for the 

entire 10-minute current speed time series, and the times of maximum flood and ebb 

currents. No comparisons for the amplitudes for flood and ebb currents are reported by 

the skill assessment procedure. 
- 27 -

At Station 23 (lower mid-Bay channel), the modeled and observed mean current speeds 

are 44.8 cm/s and 37.9 cm/s, respectively. The RMSE of the current speeds is 27.7 cm/s. 

The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria for the entire 10-

minute current speed time series, and the times of maximum flood and ebb currents. No 

comparison for the amplitude of flood currents is reported by the skill assessment 

procedure. For the amplitude of ebb currents all statistics meet the criteria, however, there 

are only 4 values used in the comparisons. 

At Station 33 (upper mid-Bay channel), the modeled and observed mean current speeds 

are 50.8 cm/s and 62.6 cm/s, respectively. The RMSE of the current speeds is 39.9 cm/s. 

The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria for the entire 10-

minute current speed time series, and the times of maximum flood and ebb and start and 

end times of the slack before flood and slack before ebb. No comparisons for the 

amplitudes for flood and ebb currents are reported by the skill assessment procedure. 

At Station 154 (at the C&D canal entrance), the modeled and observed mean current 

speeds are 39.8 cm/s and 45.1 cm/s, respectively. The RMSE of the current speeds is 39.3 

cm/s. The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria for the entire 

10-minute current speed time series, and the amplitudes of maximum flood and ebb 

currents and times of maximum flood and ebb and start and end times of the slack before 

flood and slack before ebb. 

At Station 52 (in the mid-River near Philadelphia), the modeled and observed mean 

current speeds are 18.9 cm/s and 45.9 cm/s, respectively. The RMSE of the current 

speeds is 32.4 cm/s. The CF, NOF, POF, MDNO, and MDPO statistics all fail the criteria 

for the entire 10-minute current speed time series, and the amplitudes of maximum flood 

and ebb currents and times of maximum flood and ebb and start and end times of the 

slack before flood and slack before ebb. 

6.3. Semi-Operational Nowcast/Forecast Simulation 

The simulated speeds and directions of the currents from the semi-operational nowcasts 

were compared with the measurements taken by CO-OPS over the period 15 April 

through 15 July 2010 at two PORTS locations, Philadelphia, PA and Brown Shoal Light, 

DB. Skill assessment results for this scenario are listed in Appendix G for current speeds 

and in Appendix H for current directions (Scenario: Semi-Operational Nowcast). 

For Philadelphia, PA, the mean velocity of 56.8 cm/s for the model nowcast is less than 

the observed value of 66.08 cm/s. The RMSE for the entire 6-minute time series of 

current speed is 21.7 cm/s. CF, NOF, and POF fail to pass the skill assessment criteria, 

but MDNO and MDPO pass the criteria for all tests. The maximum ebb current speeds 

of the nowcast are less than the observed values with the RMSE being 17.6 cm/s. The 

time of the maximum ebb currents and slack currents in the nowcasts falls about 30 to 40 

minutes behind those of the observations (the RMSE is 0.5 to 0.6 hours). For the 

directions of the currents, the mean directions of the nowcast and observed currents are 

116 and 127 degrees, respectively (the RMSE is 25 degrees). CF, NOF, POF, MDPO, 
- 28 -

and MDPO pass the criteria for the entire 6-minutes time series of the current directions. 

CF, NOF, POF, MDPO, and MDPO pass the criteria for the directions of the maximum 

ebb and flood currents. 

At Brown Shoal Light, DB, the mean velocity of 49.3 cm/s for the model nowcast is less 

than the observed value of 50.4 cm/s. The RMSE for the entire 6-minute time series of 

current speed is 14.3 cm/s. CF, NOF, and POF criteria, and the MDNO and MDPO pass 

the criteria for the amplitude of the ebb and flood. The maximum ebb and flood current 

speeds of the nowcast are larger than the observed values with the RMSE around 10 

cm/s. The time of the maximum ebb currents and slack currents in the nowcasts falls 

about 25 to 40 minutes behind those of the observations (the RMSE is 0.4 to 0.6 hours). 

For the directions of the currents, the mean directions of the nowcast and observed 

currents are 234 and 227 degrees, respectively (the RMSE is 19 degrees). CF, NOF, POF, 

MDPO, and MDPO pass the criteria for the entire 6-minutes time series of the current 

directions. CF, NOF, POF, MDPO, and MDPO pass the criteria for the directions of the 

maximum ebb and flood currents. 

Time series of nowcast are compared with observations at Philadelphia, PA and Brown 

Shoal Light, DB in Figure 9 over the period JD 120-135, 2010. The major velocity 

components are well replicated at both stations. 
- 29 -

 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 

Julian Day (2010) 

Figure 9. Velocity time series comparison for DBOFS’ semi-operational nowcasts at four 

NOS ADCPs . Note u is the true eastward velocity component, and v is the true 

northward velocity component. 
- 30 -

The semi-operational forecasts of current speed are similar to those of the model 

nowcasts at both Philadelphia, PA and Brown Shoal Light, DB. Skill assessment results 

are listed in Appendix G for current speeds and in Appendix H for current directions 

(Scenario: Semi-Operational Forecast). 

For Philadelphia, PA, the RMSEs of the current speed range remain between 19 and 20 

cm/s from forecast hour 0 to forecast hour 24. CF remains between 84% and 85% 

throughout the 24 hour forecast period, and thus it does not degrade with time. POF, 

NOF, MDNO, and MNPO pass the criteria for all forecast hours. The maximum flood 

and ebb current speeds of the model forecasts are less than the observations with an 

RMSE of 18 cm/s. The time of the modeled maximum flood and ebb currents occur 

about 24 and 42 minutes before the observations, respectively. CF and NOF fail to pass 

the criteria for all the tests. For current direction, RMSEs range from 21 to 15 degrees 

and improve with forecast age. NOF, CF, and POF all pass the criteria for all forecast 

hours. 

At Brown Shoal Light, DB, RMSEs of current speed range from 13 cm/s at forecast hour 

0 to 15 cm/s at forecast hour 24, and CF is above 95% (forecast hour 0) for all forecast 

hours. NOF, MDNO, and MDPO pass the criteria for the current speed forecasts 

throughout the 24 forecast hours. The RMSE of the maximum flood current speed is 9 

cm/s and the RMSE of the maximum ebb current speeds is 11 cm/s. CF, NOF, POF, 

MDNO, and MDPO pass the criteria for both the maximum flood and ebb current speeds. 

The RMSEs of the time of the maximum flood and ebb current speeds are 48 minutes and 

36 minutes, respectively, and the CF of them fails to pass the criteria (37% and 61%). 

Most of CF, NOF, POF, MDNO, and MDPO fail to pass the criteria for the start and end 

time of slack currents before flood and ebb. For current direction, the RMSEs range from 

14 degrees (forecast hour 0) to 21 degrees (forecast hour 24). CF, NOF, POF, MDNO, 

and MDPO pass the criteria for the directions of the maximum flood and ebb currents. 
- 31 -

7. SKILL ASSESSMENT OF SALINITY 

7.1. Hindcast Simulation 

 

The observed NOS Delaware River and Bay circulation survey time series (Klavans et 

al., 1986) were compared with DBOFS’ hindcast simulations over the thirteen month 

period March 1984 through March 1985 at the twenty locations in Appendix I. The 

results for five representative stations, throughout the estuary are next considered. 

At Station 5 (Bay entrance), the modeled and observed mean salinity values are 30.1 PSU 

and 30.0 PSU, and the RMSE between the simulated and observed salinity is 2.9 PSU. 

The CF is 77%, while the NOF, POF, MDNO, and MDPO statistics all pass the criteria 

for the entire 10-minute time series. 

At Station 23 (lower mid-Bay channel), the modeled and observed salinity values are 

27.2 PSU and 25.8 PSU, respectively. The RMSE of the salinity is 2.8 PSU. The CF is 

82% and the NOF, POF, MDNO, and MDPO statistics all pass the criteria for the entire 

10-minute speed time series. 

At Station 33 (upper mid-Bay channel), the modeled and observed salinity values are 

11.6 PSU and 13.7 PSU, respectively. The RMSE of the salinity is 5.0 PSU. The CF is 

46% and the NOF and POF fail the criteria, while the MDNO and MDPO statistics pass 

the criteria for the entire 10-minute time series. 

At Station 154 (at C&D canal entrance), the modeled and observed salinity values are 3.6 

PSU and 6.4 PSU, respectively. The RMSE of the salinity is 9.0 PSU. The CF is 72% and 

the NOF, MDNO, and MDPO statistics all fail the criteria for the entire 10-minute time 

series. 

At Station 52 (in the mid-River near Philadelphia), the modeled and observed salinity 

values are 0.0 PSU and 0.0 PSU, respectively. The RMSE of the salinity is 0.0 PSU. The 

CF, NOF, POF, MDNO, and MDPO statistics all pass the criteria for the entire 10-minute 

time series. 

7.2. Semi-Operational Nowcast/Forecast Simulation 

The simulated salinities from the semi-operational nowcasts were compared with the 

NOS PORTS measurements taken by CO-OPS over the three-month period 15 April 

through 15 July, 2010 at Ship John Shoal, DB and Burlington, NJ in Appendix J. 

At Ship John Shoal, DB, the modeled and observed mean salinity values are 10.5 PSU 

and 14.5 PSU, and the RMSE between the simulated and observed salinity is 4.8 PSU. 

The CF is 52%, while only the MDNO statistic passes the criteria for the entire 6-minute 

time series. 
- 32 -

At Burlington, NJ, the modeled and observed salinity values are 0.0 PSU and 0.0 PSU, 

respectively. The RMSE of the salinity is 0.0 PSU. The CF, NOF, POF, MDNO, and 

MDPO statistics all pass the criteria for the entire 6-minute time series. 

Nowcast salinities are compared with observations over the period JD 105 – 180, 2010 

proceeding down estuary at Burlington, NJ, Ship John Shoal, DB, and Brandywine Shoal, 

DB in Figure 10. Note at Brandywine Shoal, DB, there is evidence of bio-fouling over 

the entire measurement period, which accounts for the MDPO being greater than 1000 

hours noted in the skill table by *****. Note the freshwater event in the period JD 150-

158 evidenced at both Ship John Shoal, DB and Brandywine Shoal, DB. 

Figure 10. Surface salinity time series comparison for DBOFS’ semi-operational 

nowcasts at three NOS stations. 

The simulated salinities from the semi-operational forecasts were compared with the 

PORTS measurements taken by CO-OPS over the three-month period 15 April through 

15 July, 2010 at Ship John Shoal, DB and Burlington, NJ in Appendix J. 

At Ship John Shoal, DB, the RMSEs of the salinity range remain near 5.0 PSU from 

forecast hour 0 to forecast hour 24. CF remains 48% throughout the first 24 hours of the 
- 33 -

forecast, and thus it does not degrade with time. Only POF and MDPO pass the criteria 

for all forecast hours. 

At Burlington, NJ, the modeled and observed salinity values are 0.0 PSU and 0.0 PSU, 

respectively. The RMSE of the salinity is 0.0 PSU. The CF, NOF, POF, MDNO, and 

MDPO statistics all pass the criteria for all forecast hours. 
- 34 -
- 35 -

8. SKILL ASSESSMENT OF WATER TEMPERATURE 

8.1. Hindcast Simulation 

 

The observed historical NOS Delaware River and Bay circulation survey time series 

(Klavans et al., 1986) were compared with the DBOFS hindcast simulations over the 

thirteen month period March 1984 through March 1985 at the twenty two locations in 

Appendix K. The results for five representative stations, throughout the estuary are next 

considered. 

At Station 5 (Bay entrance), the modeled and observed mean temperature values are 17.3 o

C and 14.3 oC, and the RMSE between the simulated and observed temperature is 3.8 o

C. The CF is 58% and only the NOF and MDNO statistics pass the criteria for the entire 

10-minute time series. 

At Station 23 (lower mid-Bay channel), the modeled and observed temperature values are 

17.2 o

C and 14.7 oC, respectively. The RMSE of the temperature is 3.1 oC. The CF is 

70% and only the NOF and MDNO statistics pass the criteria for the entire 10-minute 

time series. 

At Station 33 (upper mid-Bay channel), the modeled and observed temperature values are 

19.3 oC and 17.3 oC, respectively. The RMSE of the temperature is 2.3 oC. The CF is 

81% and the NOF, POF, MDNO, and MDPO statistics pass the criteria for the entire 10-

minute time series. 

At Station 154 (at C&D canal entrance), the modeled and observed temperature values 

are 15.8 oC and 13.3 oC, respectively. The RMSE of the temperature is 4.0 oC. The CF is 

71% and only the NOF and MDNO statistics pass the criteria for the entire 10-minute 

time series 

At Station 52 (in the mid-River near Philadelphia), the modeled and observed 

temperature values are 5.9 o

C and 5.1 oC, respectively. The RMSE of the temperature is 

1.1 o

C. The CF, NOF, POF, MDNO, and MDPO statistics all pass the criteria for the 

entire 10-minute time series. 

8.2. Semi-Operational Nowcast/Forecast Simulation 

The simulated temperatures from DBOFS’ semi-operational nowcasts were compared 

with the NOS PORTS measurements over the three-month period 15 April through 15 

July, 2010 in Appendix L at the following nine stations: Cape May, NJ, Ship John Shoal, 

DB, Burlington, NJ, Philadelphia, PA, Newbold, PA, Delaware City, DE, Brandywine 

Shoal, DB, Lewes, DE, and Chesapeake City, MD. The results for four representative 

stations, throughout the estuary are next considered. 

At Cape May, NJ, (at the Bay entrance) the modeled and observed mean temperature 

values are 19.5 o

C and 18.2 oC, and the RMSE between the simulated and observed 
- 36 -

temperature is 3.0 o

C. The CF is 76%, while the NOF, MDNO, and MDPO statistics all 

pass the criteria for the entire 6-minute time series. The POF is 3%. 

 

At Delaware City, DE, (in the upper-Bay) the modeled and observed mean temperature 

values are 18.6 oC and 20.5 oC, and the RMSE between the simulated and observed 

temperature is 4.4 oC. The CF is 75%, and the NOF and MDNO statistics also fail the 

criteria for the entire 6-minute time series. The POF and MDPO statistics pass the criteria 

for the entire 6-minute time series. 

At Philadelphia, PA, (in the mid-River) the modeled and observed mean temperature 

values are 19.7 oC and 20.4 oC, and the RMSE between the simulated and observed 

temperature is 3.7 o

C. The CF is 90%, while only the NOF and MDNO statistics fail the 

criteria for the entire 6-minute time series. The POF and MDPO statistics pass the criteria 

for the entire 6-minute time series. 

At Newbold, PA, (in the upper-River) the modeled and observed mean temperature 

values are 20.6 o

C and 20.6 oC, and the RMSE between the simulated and observed 

temperature is 1.9 o

C. The CF is 95%, while only the NOF and MDNO statistics fail the 

criteria for the entire 6-minute time series. The POF and MDPO statistics pass the criteria 

for the entire 6-minute time series. 

Nowcast surface temperatures proceeding down estuary from Burlington, NJ, 

Philadelphia, PA, Delaware City, DE, Brandywine Shoal, DB to Cape May, NJ and 

Lewes, DE at the Bay entrance are compared with PORTS observations over the period 

JD 105-180, 2010 in Figure 11. While no PORTS observations were available at Marcus 

Hook, PA and Reedy Point, DE, at the other stations the temperature rise from early to 

late Spring and the daily heating/cooling cycles are well replicated in DBOFS. 

The simulated temperatures from the semi-operational forecasts were compared with the 

PORTS measurements taken by CO-OPS over the three-month period 15 April through 

15 July, 2010 in Appendix L at the following nine stations: Cape May, NJ, Ship John 

Shoal, DB, Burlington, NJ, Philadelphia, PA, Newbold, PA, Delaware City, DE, 

Brandywine Shoal, DB, Lewes, DE, and Chesapeake City, MD. The results for four 

representative stations, throughout the estuary are next considered. 

At Cape May, NJ, (at the Bay entrance), the RMSEs of the temperature range remain near 

2.5 o

C from forecast hour 0 to forecast hour 24. CF remains between 77% (hours 0 and 6) 

and 79% (hour 24), and thus it does not degrade with time. Only POF and MDPO pass 

the criteria for all forecast hours. 

At Delaware City, DE, (in the upper-Bay), the RMSEs of the temperature range remain 

near 4.0 oC from forecast hour 0 to forecast hour 24. CF remains between 78% (hours 0 

and 6) and 80% (hours 18 and 24), and thus it does not degrade with time. Only POF and 

MDPO pass the criteria for all forecast hours. 
- 37 -

At Philadelphia, PA, (in the mid-River), the RMSEs of the temperature range remain near 

3.0 oC from forecast hour 0 to forecast hour 24. CF remains above 92% and thus it does 

not degrade with time. Only POF and MDPO pass the criteria for all forecast hours. 

At Newbold, PA, (in the upper-River), the RMSEs of the temperature range remain near 

1.0 o

C from forecast hour 0 to forecast hour 24. CF remains above 96% and thus it does 

not degrade with time. NOF, POF, MDNO, and MDPO all pass the criteria for all 

forecast hours. 

Figure 11. Surface water temperature time series comparison for DBOFS’semioperational nowcasts at eight NOS stations.
- 38 -
- 39 -

9. CONCLUSIONS

NOS/CSDL developed and tested the Delaware River and Bay Operational 

Nowcast/Forecast System (DBOFS) using ROMS to perform operational six-hourly 

nowcasts and 48-hour forecasts. The application was integrated into the High 

Performance Computing Coastal Ocean Modeling Framework (HPC-COMF) that NOS 

has implemented for operational coastal and estuarine systems running on the NOAA 

Central Computer System operated by NWS/NCEP. The DBOFS results were compared 

with the observations at nine water level, nineteen current meter, twenty salinity stations, 

and twenty-one temperature stations for the tidal and hindcast simulation thirteen month 

period 1 March 1984 through 31 March 1985 using the NOS standard skill assessment 

software. Model response during the three month 15 April through 15 July, 2010, semioperational nowcast/forecast period was compared to NOS/CO-OPS PORTS 

observations at twelve water level, two current, three salinity, and eight water 

temperature stations. The skill assessment for this application focused on the performance 

of the model in simulating water levels and currents in the four model run scenarios, 

although salinity and temperature comparisons were also performed. 

The skill assessment results indicate that most statistical parameters of water levels pass 

the NOS skill assessment criteria for the four model run scenarios, and amplitudes and 

epochs of the dominant M2 constituent from the model tide-only simulation are very 

close to the observed values at all stations. 

Most of CF, NOF, POF, MDNO, and MDPO either pass or are close to the criteria at the 

Bay current stations for both tide-only simulation and model hindcast simulations, since 

tidal current dominate the signal in lower Delaware Bay. The CF, NOF, POF, MDNO, 

and MDPO pass the criteria for the semi-operational nowcast and forecast simulations at 

the two PORTS current stations. The semi-operational current nowcast results are 

improved over those from the hindcast simulation. 

Based on the skill assessment results for the model hindcast and the semi-operational 

nowcast/forecast described above, the following issues should be addressed to further 

evaluate DBOFS: (1) comparisons over a longer twelve to eighteen month period for the 

nowcast/forecast temperature response to test Winter cooling and Spring warming cycles 

and (2) real time salinity data are needed determine the salinity front location and 

evaluate the ability of DBOFS to forecast the salinity distribution within the transition 

zone (approximately from Reedy Point, DE to Ship John Shoal, DB). 

It is recommended that a plot capability be added to the skill assessment software. This 

capability would allow the verification of the model to data comparison techniques. The 

maintenance of the PORTS conductivity sensors and current meters is essential to enable 

further evaluation of the DBOFS in an operational setting. With respect to the 

conductivity sensor maintenance requirements, additional cooperation and coordination 

with the USGS and the City of Philadelphia would be useful. 
- 40 -

ACKNOWLEDGMENTS 

This work has been carried out in the Marine Modeling and Analysis Programs branch of 

the Coast Survey Development Laboratory (CSDL) in NOS’s Office of Coast Survey 

(OCS) under the direction of Dr. Frank Aikman. Dr. Aijun Zhang, NOS/CO-OPS, 

assisted greatly in the skill assessment and provided guidance on the transition of DBOFS 

to NOAA’s CCS. Dr. Lyon Lanerolle in CSDL provided the initial bathymetry and as 

well as many useful discussions on ROMS numerics throughout the project. Mr. Philip H. 

Richardson, CSDL, and Mr. Thomas Loeper, OCS, assisted in the CTD and CT/Current 

data recovery and analysis efforts. 

 

REFERENCES 

Aikman III, F., M.S. Vincent, and R.C. Patchen, 2008: Development and Evolution of 

Operational Forecast Systems for the Coastal and Estuarine Environment in 

NOAA’s National Ocean Service, Proceedings of the 10th International 

Conference on Estuarine and Coastal Modeling, ASCE, 671-684. 

Barnes, S. L., 1973: Mesoscale Objective Map Analysis Using Weighted Time Series 

Observations, NOAA Technical Memorandum ERL NSSl-62, National Severe 

Storms Laboratory, Norman, OK. 

Brigham Young University Environmental Modeling Research Laboratory, 2006: The 

Surface-water Modeling System (SMS) – Version 9.2, SMS Tutorials, Salt Lake 

City, UT. 

Blumberg, A. F., and G. L. Mellor, 1987: A Description of a Three-Dimensional Coastal 

Ocean Circulation Model. Three-Dimensional Coastal Ocean Models, (ed. Heaps), 

American Geophysical Union, Washington, DC, 1 - 16. 

Blumberg, A. F., and H.J. Herring, 1987: Circulation Modeling using Orthogonal 

Curvilinear Coordinates, in Three-Dimensional Models of Marine and Estuarine 

Dynamics, (ed. Nihoul and Jamart), Elsevier Oceanography Series, 45, 55-88. 

Conkright, M.E., R. A. Locarnini, H.E. Garcia, T.D. O’Brien, T.P. Boyer, C. Stephens, J.I. 

Antonov, 2002: World Ocean Atlas 2001: Objective Analyses, Data Statistics, and Figures, 

CD-ROM Documentation. National Oceanographic Data Center, Silver Spring, MD. 

Delft Hydraulics, 2004: Delft3D-RGFGRID: Generation and manipulation of curvilinear 

grids for FLOW and WAVE User Manual, Delft, The Netherlands. 

Galperin, B., L.H. Kantha, S. Hassid, and A. Rossati, 1988: A Quasi-Turbulent Energy 

Model for Geophysical Flows, Journal of Atmospheric Science, 45, 55-62. 

Gross, T.F, H. Lin, Z. Bronder, M.S. Vincent, 2006: Coastal Ocean Modeling 

Framework: COMF, NOAA Technical Report NOS CS 22, Silver Spring, MD. 
- 41 -

Haidvogel, D.P., H. Arango, W.P. Budgell, B.D. Cornuelle, E. Curchister, E. Di Lorenzo, 

K.Fennel, W. R. Geyer, A. J. Hermann, L. Lanerolle, J. Levin, J. C. McWilliams, 

A. J. Miller, A. M. Moore, T. M. Powell, A. F. Shchepetkin, C. R. Sherwood, R. P. 

Signell, John C. Warner, J. Wilkin, 2008: Regional Ocean Forecasting in Terrainfollowing Coordinates: Model Formulation and Skill Assessment, Journal of 

Computational Physics, 3595-3624. 

Hess, K.W., T.F. Gross, R.A. Schmalz, J.G.W. Kelley, F. Aikman, E. Wei, and M.S. 

Vincent, 2003: NOS Standards for Evaluating Operational Nowcast and Forecast 

Hydrodynamic Model Systems, NOAA Technical Report NOS CS 17, Silver Spring, 

MD. 

Klavans, A.S., P.J. Stone, and G.A. Stoney, 1986: Delaware River and Bay Circulation 

Survey: 1984-1985, NOS Oceanographic Circulation Survey Report No. 9, 

Rockville, MD. 

Lanerolle, L. W. J., 2008: Numerical Modeling of the Delaware River and Bay during 

Spring-Fall of 1984 using the Regional Ocean Modeling System (ROMS), 

Proceedings of the 10th International Conference on Estuarine and Coastal 

Modeling, ASCE, 724-743. 

Locarnini, R. A., A. V. Mishonov, J. I. Antonov, T. P. Boyer, and H. E. Garcia, 2006. 

World Ocean Atlas 2005, Volume 1: Temperature, Volume 2: Salinity. S. Levitus, 

Ed. NOAA Atlas NESDIS 61 and 62, U.S. Government Printing Office, 

Washington, D.C. 

Loeper, T., 2006: Restoration of CTD Data from the 1984-1985 Delaware River and Bay 

Circulation Survey, NOAA/NOS/CSDL Informal Technical Note No. 6, Silver 

Spring, MD. 

Mellor, G.L. and T. Yamada, 1982: Development of a Turbulence Closure Model for 

Geophysical Fluid Problems, Review of Geophysical Space Physics, 20, 851-875. 

Mukai, A.Y., J.J. Westerink, and R.A. Luettich, 2001: Guidelines for Using the Eastcoast 

2001 Database of Tidal Constituents within the Western North Atlantic Ocean, Gulf 

of Mexico and Caribbean Sea, US Army Corps of Engineers, Coastal and 

Hydraulic Engineering Technical Note (IV-XX), Vicksburg, MS. 

Myers, E. P. June 22, 2007: Personal Communication (edward.myers@noaa.gov) 

NOS, 1999: NOS Procedures for Developing and Implementing Operational Nowcast 

and Forecast Systems for PORTS, NOAA Technical Report NOS CO-OPS 0020, 

Silver Spring, MD. 
- 42 -

Patchen, R.C., 2008: Establishment of a Delaware Bay Model Evaluation Environment,

Proceedings of the 10th International Conference on Estuarine and Coastal 

Modeling, ASCE, 783-818. 

Richardson, P.H. and R. A. Schmalz, 2006: Restoration of Delaware River and Bay 

Circulation Survey, Current Meter and CTD Observations 1984-1985, 

NOAA/NOS/CSDL Informal Technical Note No. 5, Silver Spring, MD. 

Schmalz, R.A., 2010: Three-Dimensional Hydrodynamic Model Developments for a 

Delaware River and Bay Nowcast/Forecast System NOAA/NOS/CSDL Technical 

Report (in preparation), Silver Spring, MD. 

Shureman, P., 1958. Manual of Harmonic Analysis and Prediction of Tides, Special 

Publication 98, U.S. Government Printing Office, Washington, DC. 

Shchepetkin A. F., and J. C. McWilliams, 2005: The regional oceanic modeling system 

(ROMS): a split-explicit, free-surface, topography-following-coordinate oceanic 

model, Ocean Modelling, 9 (4) 347-404. 

Urizar, C. and L. Lanerolle, 2005: ROMS User Manual, Unpublished manuscript, 

NOAA/NOS, Silver Spring, MD. 

Zhang, A., K.W. Hess, E. Wei, and E. Myers, 2009: Implementation of Model Skill 

Assessment Software for Water Level and Current in Tidal Regions, NOAA 

Technical Report NOS CS 24, Silver Spring, MD. 

Zhang, A., Z. Yang, G. Mott, D. Cao, F. Aikman, J. Kelley, E. Wei, R. Schmalz, and L. 

Lanerolle, 2010a: High Performance Computer Coastal Ocean Modeling 

Framework for the NOS Coastal Operational Forecast System, NOAA Technical 

Report (in preparation), Silver Spring, MD. 

Zhang, A., K.W. Hess and F. Aikman, 2010b: User-based Skill Assessment Techniques 

for Operational Hydrodynamic Forecast Systems, Journal of Operational 

Oceanography, Volume 3, Number 2, 11-24(14). 
- 43 -

APPENDICES: 

In the Appendices tables, water level units are in meters, water current units are in 

meters/second, phase (epoch) units are in degrees referenced to UTC (GMT), time is in 

hours. Salinity is expressed in practical salinity units (PSU) and temperature in degrees 

Celsius (o

C). 

APPENDIX A. Comparison of Water Level Harmonic Constants 

Station: "CAPE MAY CANAL,DELAWARE BAY" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.734 29.4 0.703 28.1 -0.031 -1.3 

 2 S(2) 0.121 57.5 0.153 55.2 0.032 -2.3 

 3 N(2) 0.158 11.5 0.173 358.4 0.015 13.1 

 4 K(1) 0.112 198.2 0.081 184.2 -0.031 -14.0 

 5 M(4) 0.014 91.7 0.014 122.9 0.000 31.2 

 6 O(1) 0.085 183.6 0.077 186.7 -0.008 3.1 

 7 M(6) 0.009 28.1 0.008 18.5 -0.001 -9.6 

 8 MK(3) 0.005 187.2 0.002 221.8 -0.003 34.6 

 9 S(4) 0.001 322.3 0.001 224.4 0.000 -97.9 

 10 MN(4) 0.003 88.6 0.006 107.5 0.003 18.9 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.000 0.0 0.000 0.0 0.000 0.0 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.018 7.5 0.003 72.7 -0.015 65.2 

 15 OO(1) 0.005 199.0 0.000 0.0 -0.005 161.0 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.005 202.3 0.000 274.4 -0.005 72.1 

 19 J(1) 0.004 146.0 0.002 323.3 -0.002 177.3 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.002 194.4 0.000 0.0 -0.002 165.6 

 26 Q(1) 0.012 206.3 0.011 189.7 -0.001 -16.6 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.002 78.7 0.000 0.0 -0.002 -78.7 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.001 12.5 0.002 239.3 0.001 133.2 

 32 M(3) 0.008 97.5 0.001 96.1 -0.007 -1.4 

 33 L(2) 0.045 50.3 0.026 63.0 -0.019 12.7 

 34 2MK(3) 0.005 130.2 0.003 197.1 -0.002 66.9 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.004 179.0 0.003 215.3 -0.001 36.3 

 37 MS(4) 0.007 131.1 0.006 159.3 -0.001 28.2 
- 44 -

Station: "BURLINGTON, DELAWARE RIVER" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 1.042 217.0 1.009 203.5 -0.033 -13.5 

 2 S(2) 0.130 244.3 0.161 251.9 0.031 7.6 

 3 N(2) 0.202 202.3 0.183 182.9 -0.019 -19.4 

 4 K(1) 0.129 305.7 0.080 278.1 -0.049 -27.6 

 5 M(4) 0.127 347.9 0.136 350.3 0.009 2.4 

 6 O(1) 0.091 259.0 0.079 274.0 -0.012 15.0 

 7 M(6) 0.023 13.4 0.035 294.9 0.012 78.5 

 8 MK(3) 0.000 0.0 0.020 19.7 0.000 0.0 

 9 S(4) 0.036 32.5 0.003 129.2 -0.033 96.7 

 10 MN(4) 0.000 0.0 0.053 330.5 0.000 0.0 

 11 NU(2) 0.039 204.3 0.000 0.0 -0.039 155.7 

 12 S(6) 0.009 96.3 0.000 0.0 -0.009 -96.3 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.027 187.7 0.014 223.4 -0.013 35.7 

 15 OO(1) 0.004 352.4 0.001 243.6 -0.003 -108.8 

 16 LAMBDA(2) 0.007 229.7 0.000 0.0 -0.007 130.3 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.006 282.4 0.003 324.5 -0.003 42.1 

 19 J(1) 0.007 329.1 0.007 81.3 0.000 112.2 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.003 238.9 0.000 0.0 -0.003 121.1 

 26 Q(1) 0.018 235.6 0.011 300.8 -0.007 65.2 

 27 T(2) 0.008 244.3 0.000 0.0 -0.008 115.7 

 28 R(2) 0.001 244.3 0.000 0.0 -0.001 115.7 

 29 2Q(1) 0.002 212.3 0.000 0.0 -0.002 147.7 

 30 P(1) 0.043 305.7 0.000 0.0 -0.043 54.3 

 31 2SM(2) 0.000 0.0 0.010 69.5 0.000 0.0 

 32 M(3) 0.000 0.0 0.011 271.7 0.000 0.0 

 33 L(2) 0.029 231.6 0.157 228.3 0.128 -3.3 

 34 2MK(3) 0.000 0.0 0.022 9.4 0.000 0.0 

 35 K(2) 0.035 244.3 0.000 0.0 -0.035 115.7 

 36 M(8) 0.016 82.2 0.016 47.9 0.000 -34.3 

 37 MS(4) 0.000 0.0 0.049 38.5 0.000 0.0 
- 45 -

Station: "TRENTON MARINE TERMINAL" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 1.121 221.4 1.096 210.5 -0.025 -10.9 

 2 S(2) 0.112 258.6 0.178 259.9 0.066 1.3 

 3 N(2) 0.162 197.6 0.200 190.1 0.038 -7.5 

 4 K(1) 0.121 298.3 0.081 281.5 -0.040 -16.8 

 5 M(4) 0.200 356.8 0.206 1.2 0.006 4.4 

 6 O(1) 0.089 283.2 0.081 277.0 -0.008 -6.2 

 7 M(6) 0.088 50.3 0.056 2.2 -0.032 -48.1 

 8 MK(3) 0.044 40.1 0.027 30.9 -0.017 -9.2 

 9 S(4) 0.003 203.1 0.005 143.6 0.002 -59.5 

 10 MN(4) 0.067 337.4 0.081 342.4 0.014 5.0 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.003 218.6 0.000 0.0 -0.003 141.4 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.043 180.1 0.015 230.9 -0.028 50.8 

 15 OO(1) 0.000 0.0 0.001 246.2 0.000 0.0 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.005 303.6 0.003 325.4 -0.002 21.8 

 19 J(1) 0.004 188.1 0.008 84.7 0.004 -103.4 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.007 263.5 0.000 0.0 -0.007 96.5 

 26 Q(1) 0.010 335.2 0.012 303.6 0.002 -31.6 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.011 185.6 0.000 0.0 -0.011 174.4 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.009 85.7 0.011 76.2 0.002 -9.5 

 32 M(3) 0.012 303.0 0.014 283.5 0.002 -19.5 

 33 L(2) 0.147 228.2 0.169 234.1 0.022 5.9 

 34 2MK(3) 0.044 357.5 0.029 20.9 -0.015 23.4 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.051 179.1 0.047 142.8 -0.004 -36.3 

 37 MS(4) 0.043 48.8 0.077 51.5 0.034 2.7 
- 46 -

Station: "PHILADELPHIA, PA" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.867 185.8 0.824 181.6 -0.043 -4.2 

 2 S(2) 0.098 225.5 0.130 225.8 0.032 0.3 

 3 N(2) 0.143 168.7 0.149 159.2 0.006 -9.5 

 4 K(1) 0.112 278.6 0.076 268.7 -0.036 -9.9 

 5 M(4) 0.095 264.7 0.060 275.4 -0.035 10.7 

 6 O(1) 0.085 264.8 0.076 265.2 -0.009 0.4 

 7 M(6) 0.058 250.2 0.050 211.9 -0.008 -38.3 

 8 MK(3) 0.027 340.9 0.012 334.5 -0.015 -6.4 

 9 S(4) 0.002 357.8 0.002 16.5 0.000 18.7 

 10 MN(4) 0.034 252.7 0.026 252.5 -0.008 -0.2 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.003 47.9 0.000 0.0 -0.003 -47.9 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.027 178.5 0.012 204.0 -0.015 25.5 

 15 OO(1) 0.000 0.0 0.001 236.5 0.000 0.0 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.005 298.0 0.003 317.1 -0.002 19.1 

 19 J(1) 0.005 157.0 0.006 69.6 0.001 -87.4 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.004 194.1 0.000 0.0 -0.004 165.9 

 26 Q(1) 0.011 303.3 0.011 290.3 0.000 -13.0 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.010 154.1 0.000 0.0 -0.010 -154.1 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.002 179.1 0.008 44.2 0.006 -134.9 

 32 M(3) 0.009 259.3 0.006 225.3 -0.003 -34.0 

 33 L(2) 0.114 203.1 0.122 209.1 0.008 6.0 

 34 2MK(3) 0.026 300.9 0.013 325.5 -0.013 24.6 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.024 342.8 0.022 312.4 -0.002 -30.4 

 37 MS(4) 0.025 311.1 0.025 315.0 0.000 3.9 
- 47 -

Station: "Delaware City, DE" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.744 114.1 0.730 110.8 -0.014 -3.3 

 2 S(2) 0.100 148.0 0.130 148.4 0.030 0.4 

 3 N(2) 0.144 99.2 0.145 86.8 0.001 -12.4 

 4 K(1) 0.095 247.4 0.073 235.6 -0.022 -11.8 

 5 M(4) 0.060 147.4 0.070 150.2 0.010 2.8 

 6 O(1) 0.068 226.2 0.072 234.3 0.004 8.1 

 7 M(6) 0.033 60.0 0.039 29.0 0.006 -31.0 

 8 MK(3) 0.016 237.8 0.010 231.2 -0.006 -6.6 

 9 S(4) 0.002 133.1 0.002 251.0 0.000 117.9 

 10 MN(4) 0.027 127.1 0.031 130.7 0.004 3.6 

 11 NU(2) 0.037 91.2 0.000 0.0 -0.037 -91.2 

 12 S(6) 0.001 132.0 0.000 0.0 -0.001 -132.0 

 13 MU(2) 0.031 228.3 0.000 0.0 -0.031 131.7 

 14 2N(2) 0.014 122.4 0.009 129.7 -0.005 7.3 

 15 OO(1) 0.004 215.5 0.000 0.0 -0.004 144.5 

 16 LAMBDA(2) 0.019 118.9 0.000 0.0 -0.019 -118.9 

 17 S(1) 0.026 191.4 0.000 0.0 -0.026 168.6 

 18 M(1) 0.005 282.3 0.002 289.3 -0.003 7.0 

 19 J(1) 0.007 332.0 0.005 27.9 -0.002 55.9 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.041 31.3 0.000 0.0 -0.041 -31.3 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.006 239.7 0.000 0.0 -0.006 120.3 

 26 Q(1) 0.009 236.5 0.010 254.5 0.001 18.0 

 27 T(2) 0.010 155.1 0.000 0.0 -0.010 -155.1 

 28 R(2) 0.002 258.3 0.000 0.0 -0.002 101.7 

 29 2Q(1) 0.005 199.2 0.000 0.0 -0.005 160.8 

 30 P(1) 0.034 246.1 0.000 0.0 -0.034 113.9 

 31 2SM(2) 0.002 322.8 0.006 317.5 0.004 -5.3 

 32 M(3) 0.007 174.2 0.006 116.1 -0.001 -58.1 

 33 L(2) 0.104 127.7 0.085 134.6 -0.019 6.9 

 34 2MK(3) 0.019 197.5 0.012 220.9 -0.007 23.4 

 35 K(2) 0.029 149.0 0.000 0.0 -0.029 -149.0 

 36 M(8) 0.006 68.6 0.013 57.8 0.007 -10.8 

 37 MS(4) 0.018 189.7 0.029 193.1 0.011 3.4 
- 48 -

Station: "Reedy Point,DE" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.827 105.8 0.743 104.6 -0.084 -1.2 

 2 S(2) 0.109 143.0 0.133 142.1 0.024 -0.9 

 3 N(2) 0.150 88.8 0.147 80.6 -0.003 -8.2 

 4 K(1) 0.103 237.1 0.066 231.6 -0.037 -5.5 

 5 M(4) 0.067 123.6 0.061 133.6 -0.006 10.0 

 6 O(1) 0.070 225.2 0.065 229.2 -0.005 4.0 

 7 M(6) 0.036 44.9 0.036 22.7 0.000 -22.2 

 8 MK(3) 0.020 216.6 0.011 207.7 -0.009 -8.9 

 9 S(4) 0.004 121.1 0.002 232.0 -0.002 110.9 

 10 MN(4) 0.025 106.5 0.027 113.7 0.002 7.2 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.001 171.1 0.000 0.0 -0.001 -171.1 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.020 81.1 0.008 113.3 -0.012 32.2 

 15 OO(1) 0.004 255.1 0.000 0.0 -0.004 104.9 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.005 214.1 0.002 291.0 -0.003 76.9 

 19 J(1) 0.003 82.1 0.005 20.6 0.002 -61.5 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.004 311.9 0.000 0.0 -0.004 48.1 

 26 Q(1) 0.015 261.7 0.010 253.8 -0.005 -7.9 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.011 131.2 0.000 0.0 -0.011 -131.2 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.002 264.1 0.006 311.2 0.004 47.1 

 32 M(3) 0.007 160.8 0.006 98.1 -0.001 -62.7 

 33 L(2) 0.087 126.0 0.086 127.5 -0.001 1.5 

 34 2MK(3) 0.023 181.8 0.014 201.8 -0.009 20.0 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.010 32.2 0.011 31.3 0.001 -0.9 

 37 MS(4) 0.015 161.4 0.026 175.6 0.011 14.2 
- 49 -

Station: "BRANDYWINE SHOAL LIGHT, DELAWARE BAY" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.754 36.3 0.720 38.0 -0.034 1.7 

 2 S(2) 0.119 61.6 0.153 65.6 0.034 4.0 

 3 N(2) 0.154 17.2 0.174 8.0 0.020 -9.2 

 4 K(1) 0.115 198.5 0.083 189.2 -0.032 -9.3 

 5 M(4) 0.011 120.6 0.010 235.7 -0.001 115.1 

 6 O(1) 0.086 186.4 0.079 191.3 -0.007 4.9 

 7 M(6) 0.004 55.3 0.003 50.4 -0.001 -4.9 

 8 MK(3) 0.005 174.5 0.001 154.8 -0.004 -19.7 

 9 S(4) 0.000 0.0 0.000 0.0 0.000 0.0 

 10 MN(4) 0.003 133.8 0.005 197.1 0.002 63.3 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.000 0.0 0.000 0.0 0.000 0.0 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.014 359.7 0.004 86.2 -0.010 86.5 

 15 OO(1) 0.005 205.8 0.000 0.0 -0.005 154.2 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.006 193.9 0.001 265.9 -0.005 72.0 

 19 J(1) 0.004 136.5 0.002 330.9 -0.002 165.6 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.002 242.1 0.000 0.0 -0.002 117.9 

 26 Q(1) 0.012 213.9 0.011 195.0 -0.001 -18.9 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.004 79.0 0.000 0.0 -0.004 -79.0 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.001 173.7 0.003 252.5 0.002 78.8 

 32 M(3) 0.007 106.0 0.001 65.8 -0.006 -40.2 

 33 L(2) 0.044 66.2 0.032 75.7 -0.012 9.5 

 34 2MK(3) 0.005 123.7 0.003 158.4 -0.002 34.7 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.002 221.9 0.001 260.7 -0.001 38.8 

 37 MS(4) 0.006 143.2 0.004 253.0 -0.002 109.8 
- 50 -

Station: "LEWES,FT MILES DE" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.610 31.7 0.617 29.9 0.007 -1.8 

 2 S(2) 0.103 58.3 0.137 54.4 0.034 -3.9 

 3 N(2) 0.134 9.3 0.157 357.9 0.023 11.4 

 4 K(1) 0.107 200.4 0.080 185.5 -0.027 -14.9 

 5 M(4) 0.012 168.4 0.020 199.1 0.008 30.7 

 6 O(1) 0.083 186.1 0.076 187.9 -0.007 1.8 

 7 M(6) 0.004 355.3 0.009 335.7 0.005 -19.6 

 8 MK(3) 0.002 206.0 0.001 234.5 -0.001 28.5 

 9 S(4) 0.001 288.2 0.001 245.6 0.000 -42.6 

 10 MN(4) 0.006 173.4 0.010 165.0 0.004 -8.4 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.000 0.0 0.000 0.0 0.000 0.0 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.013 14.4 0.002 102.6 -0.011 88.2 

 15 OO(1) 0.004 204.7 0.000 0.0 -0.004 155.3 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.005 199.5 0.000 276.9 -0.005 77.4 

 19 J(1) 0.005 157.8 0.001 323.5 -0.004 165.7 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.003 217.5 0.000 0.0 -0.003 142.5 

 26 Q(1) 0.013 199.0 0.011 187.4 -0.002 -11.6 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.002 79.9 0.000 0.0 -0.002 -79.9 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.002 151.1 0.001 267.1 -0.001 116.0 

 32 M(3) 0.005 93.5 0.001 106.2 -0.004 12.7 

 33 L(2) 0.027 72.6 0.017 89.5 -0.010 16.9 

 34 2MK(3) 0.002 121.8 0.002 201.4 0.000 79.6 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.002 238.1 0.002 246.6 0.000 8.5 

 37 MS(4) 0.004 191.0 0.009 225.1 0.005 34.1 
- 51 -

Station: "OCEAN CITY, FISHING PIER" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.489 0.3 0.478 2.7 -0.011 2.4 

 2 S(2) 0.074 27.4 0.111 26.2 0.037 -1.2 

 3 N(2) 0.115 346.9 0.130 325.6 0.015 -21.3 

 4 K(1) 0.097 196.2 0.072 175.6 -0.025 -20.6 

 5 M(4) 0.008 222.3 0.019 215.4 0.011 -6.9 

 6 O(1) 0.085 180.6 0.071 184.1 -0.014 3.5 

 7 M(6) 0.015 299.7 0.013 347.8 -0.002 48.1 

 8 MK(3) 0.001 130.3 0.001 282.6 0.000 152.3 

 9 S(4) 0.001 264.4 0.000 0.0 -0.001 95.6 

 10 MN(4) 0.006 166.7 0.009 180.9 0.003 14.2 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.000 0.0 0.000 0.0 0.000 0.0 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.015 6.9 0.000 0.0 -0.015 -6.9 

 15 OO(1) 0.004 178.0 0.000 0.0 -0.004 -178.0 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.004 217.7 0.000 0.0 -0.004 142.3 

 19 J(1) 0.007 175.4 0.000 0.0 -0.007 -175.4 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.003 185.7 0.000 0.0 -0.003 174.3 

 26 Q(1) 0.013 187.0 0.010 175.3 -0.003 -11.7 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.002 171.4 0.000 0.0 -0.002 -171.4 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.003 89.5 0.000 0.0 -0.003 -89.5 

 32 M(3) 0.005 45.6 0.000 0.0 -0.005 -45.6 

 33 L(2) 0.020 4.4 0.002 179.9 -0.018 175.5 

 34 2MK(3) 0.001 71.8 0.001 229.8 0.000 158.0 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.001 18.9 0.002 347.3 0.001 31.6 

 37 MS(4) 0.001 273.8 0.008 247.2 0.007 -26.6 
- 52 -

Station: "CHESAPEAKE CITY" 

Observation:CO-OPS Accepted Harmonic Constants 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in meters, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed Modeled Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

 1 M(2) 0.471 93.9 0.430 98.8 -0.041 4.9 

 2 S(2) 0.048 142.2 0.070 138.3 0.022 -3.9 

 3 N(2) 0.081 84.6 0.077 77.0 -0.004 -7.6 

 4 K(1) 0.037 338.6 0.025 301.5 -0.012 -37.1 

 5 M(4) 0.030 144.9 0.038 144.4 0.008 -0.5 

 6 O(1) 0.014 13.4 0.014 270.0 0.000 103.4 

 7 M(6) 0.012 100.7 0.018 88.6 0.006 -12.1 

 8 MK(3) 0.010 291.3 0.009 260.6 -0.001 -30.7 

 9 S(4) 0.001 318.2 0.002 213.3 0.001 -104.9 

 10 MN(4) 0.011 141.9 0.017 126.6 0.006 -15.3 

 11 NU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 12 S(6) 0.001 331.4 0.001 211.6 0.000 -119.8 

 13 MU(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 14 2N(2) 0.008 28.5 0.011 24.5 0.003 -4.0 

 15 OO(1) 0.004 345.7 0.002 56.2 -0.002 70.5 

 16 LAMBDA(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.004 117.6 0.002 309.8 -0.002 167.8 

 19 J(1) 0.006 97.4 0.005 342.0 -0.001 115.4 

 20 MM 0.000 0.0 0.000 0.0 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.000 0.0 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.004 299.1 0.000 0.0 -0.004 60.9 

 26 Q(1) 0.007 322.9 0.007 315.8 0.000 -7.1 

 27 T(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.002 325.1 0.002 343.1 0.000 18.0 

 30 P(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 31 2SM(2) 0.004 12.0 0.002 342.4 -0.002 29.6 

 32 M(3) 0.004 216.8 0.002 133.5 -0.002 -83.3 

 33 L(2) 0.060 102.0 0.043 111.6 -0.017 9.6 

 34 2MK(3) 0.008 255.5 0.009 235.3 0.001 -20.2 

 35 K(2) 0.000 0.0 0.000 0.0 0.000 0.0 

 36 M(8) 0.006 105.1 0.007 95.9 0.001 -9.2 

 37 MS(4) 0.005 200.3 0.014 185.0 0.009 -15.3 
- 53 -

APPENDIX B. Skill Assessment Scores of Water Levels: Astronomical Tide and 

Hindcast Simulations 

Station: CAPE MAY CANAL,DELAWARE BAY 

Observed data time period from: / 3/ 1/1984 to / 4/ 2/1984 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 -0.011 

h 87600 -0.011 

H-h 15 cm 24h 87600 0.001 0.083 0.083 0.0 92.8 0.0 1.2 2.0 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.025 0.081 0.077 0.0 92.1 0.0 0.0 0.0 

ALW-alw 15 cm 24h 706 0.008 0.080 0.080 0.1 95.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.009 0.218 0.218 0.0 97.9 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 706 -0.095 0.244 0.224 0.0 97.2 0.1 0.0 0.0 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 7861 -0.039 

h 7861 -0.011 

H-h 15 cm 24h 7861 -0.027 0.118 0.115 1.0 86.4 0.6 1.3 2.3 0.75 0.99 

AHW-ahw 15 cm 24h 62 -0.030 0.105 0.102 0.0 85.5 0.0 0.0 0.0 

ALW-alw 15 cm 24h 63 -0.055 0.134 0.123 1.6 88.9 0.0 0.0 0.0 

THW-thw 0.50 h 25h 62 0.047 0.519 0.522 1.6 66.1 4.8 0.0 0.0 

TLW-tlw 0.50 h 25h 63 -0.006 0.631 0.636 4.8 58.7 7.9 0.0 0.0 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to DBOFS model datum 

H 87600 -0.021 

h 87600 -0.011 

H-h 15 cm 24h 87600 -0.009 0.084 0.083 0.0 92.7 0.0 1.2 2.0 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.035 0.084 0.077 0.0 91.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 706 -0.002 0.080 0.080 0.1 94.8 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.009 0.218 0.218 0.0 97.9 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 706 -0.095 0.244 0.224 0.0 97.2 0.1 0.0 0.0 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 7861 -0.049 

h 7861 -0.011 

H-h 15 cm 24h 7861 -0.037 0.121 0.115 1.1 85.2 0.6 1.4 2.3 0.81 0.99 

AHW-ahw 15 cm 24h 62 -0.040 0.109 0.102 1.6 88.7 0.0 0.0 0.0 

ALW-alw 15 cm 24h 63 -0.065 0.139 0.123 1.6 87.3 0.0 0.0 0.0 

THW-thw 0.50 h 25h 62 0.047 0.519 0.522 1.6 66.1 4.8 0.0 0.0 

TLW-tlw 0.50 h 25h 63 -0.006 0.631 0.636 4.8 58.7 7.9 0.0 0.0 
- 54 -

Station: BURLINGTON, DELAWARE RIVER 

Observed data time period from: / 3/ 1/1984 to / 4/ 6/1984 with gaps of 14.17 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.110 

h 87600 0.110 

H-h 15 cm 24h 87600 0.000 0.239 0.239 10.9 44.5 11.7 5.7 4.8 0.00 0.97 

AHW-ahw 15 cm 24h 705 0.112 0.175 0.134 0.0 57.3 8.5 0.0 75.1 

ALW-alw 15 cm 24h 705 -0.027 0.145 0.142 1.0 68.7 2.6 0.0 62.0 

THW-thw 0.50 h 25h 705 -0.259 0.420 0.331 0.7 74.5 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.074 0.454 0.449 1.4 66.8 0.1 0.0 0.0 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 8701 0.120 

h 8701 -0.009 

H-h 15 cm 24h 8701 0.130 0.231 0.192 0.5 47.2 15.4 1.7 11.6 4.10 0.98 

AHW-ahw 15 cm 24h 71 0.231 0.273 0.147 0.0 19.7 25.4 0.0 24.0 

ALW-alw 15 cm 24h 70 0.139 0.194 0.137 0.0 61.4 10.0 0.0 12.0 

THW-thw 0.50 h 25h 71 -0.049 0.436 0.437 0.0 74.6 1.4 0.0 0.0 

TLW-tlw 0.50 h 25h 70 0.016 0.459 0.462 1.4 77.1 2.9 0.0 0.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 -0.001 

h 87600 0.110 

H-h 15 cm 24h 87600 -0.111 0.264 0.239 23.3 39.2 4.5 6.8 3.7 0.00 0.97 

AHW-ahw 15 cm 24h 705 0.001 0.134 0.134 1.4 73.3 0.9 0.0 0.0 

ALW-alw 15 cm 24h 705 -0.138 0.198 0.142 12.5 46.4 0.0 99.8 0.0 

THW-thw 0.50 h 25h 705 -0.259 0.420 0.331 0.7 74.5 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.074 0.454 0.449 1.4 66.8 0.1 0.0 0.0 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 8701 0.009 

h 8701 -0.009 

H-h 15 cm 24h 8701 0.019 0.193 0.192 4.1 59.8 5.9 3.8 9.4 2.57 0.98 

AHW-ahw 15 cm 24h 71 0.120 0.189 0.147 1.4 63.4 9.9 0.0 0.0 

ALW-alw 15 cm 24h 70 0.028 0.139 0.137 0.0 80.0 2.9 0.0 0.0 

THW-thw 0.50 h 25h 71 -0.049 0.436 0.437 0.0 74.6 1.4 0.0 0.0 

TLW-tlw 0.50 h 25h 70 0.016 0.459 0.462 1.4 77.1 2.9 0.0 0.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 10% tidal range 

H 87600 -0.001 

h 87600 0.110 

H-h 21 cm 24h 87600 -0.111 0.264 0.239 8.9 55.8 1.2 5.0 2.8 0.00 0.97 

AHW-ahw 21 cm 24h 705 0.001 0.134 0.134 0.0 87.7 0.0 0.0 0.0 

ALW-alw 21 cm 24h 705 -0.138 0.198 0.142 0.4 70.6 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.259 0.420 0.331 0.7 74.5 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.074 0.454 0.449 1.4 66.8 0.1 0.0 0.0 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 10% tidal range 

H 8701 0.009 

h 8701 -0.009 

H-h 21 cm 24h 8701 0.019 0.193 0.192 0.2 76.3 2.1 1.2 4.7 0.92 0.98 

AHW-ahw 21 cm 24h 71 0.120 0.189 0.147 0.0 78.9 2.8 0.0 0.0 

ALW-alw 21 cm 24h 70 0.028 0.139 0.137 0.0 87.1 1.4 0.0 0.0 

THW-thw 0.50 h 25h 71 -0.049 0.436 0.437 0.0 74.6 1.4 0.0 0.0 

TLW-tlw 0.50 h 25h 70 0.016 0.459 0.462 1.4 77.1 2.9 0.0 0.0 
- 55 -

Station: TRENTON MARINE TERMINAL 

Observed data time period from: / 3/ 1/1984 to / 1/ 2/1985 with gaps of 14.17 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.199 

h 87600 0.199 

H-h 15 cm 24h 87600 -0.001 0.239 0.239 9.2 49.7 9.1 6.3 4.3 0.00 0.98 

AHW-ahw 15 cm 24h 706 0.141 0.174 0.102 0.1 50.7 3.3 0.0 87.7 

ALW-alw 15 cm 24h 705 0.017 0.143 0.142 0.0 72.1 3.7 0.0111.9 

THW-thw 0.50 h 25h 706 -0.159 0.405 0.372 3.3 81.7 0.0 74.4 0.0 

TLW-tlw 0.50 h 25h 705 0.394 0.588 0.437 0.0 52.2 5.5 0.0 74.2 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 73861 0.228 

h 73861 0.078 

H-h 15 cm 24h 73861 0.150 0.260 0.212 1.6 44.3 19.5 3.7 29.0 9.99 0.98 

AHW-ahw 15 cm 24h 595 0.268 0.302 0.138 0.2 18.3 38.5 0.0212.0 

ALW-alw 15 cm 24h 594 0.235 0.268 0.128 0.0 19.4 24.1 0.0 86.0 

THW-thw 0.50 h 25h 595 -0.084 0.450 0.443 1.5 72.4 1.3 0.0 0.0 

TLW-tlw 0.50 h 25h 594 0.214 0.517 0.471 0.5 63.6 5.2 0.0 37.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.037 

h 87600 0.199 

H-h 15 cm 24h 87600 -0.163 0.289 0.239 28.6 37.3 4.1 7.9 3.6 0.00 0.97 

AHW-ahw 15 cm 24h 706 -0.021 0.104 0.102 0.3 89.7 0.0 12.2 0.0 

ALW-alw 15 cm 24h 705 -0.145 0.202 0.142 13.2 41.7 0.3 99.4 12.6 

THW-thw 0.50 h 25h 706 -0.159 0.405 0.372 3.3 81.7 0.0 74.4 0.0 

TLW-tlw 0.50 h 25h 705 0.394 0.588 0.437 0.0 52.2 5.5 0.0 74.2 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 73861 0.066 

h 73861 0.078 

H-h 15 cm 24h 73861 -0.012 0.213 0.212 7.3 58.8 5.9 5.3 25.0 5.17 0.98 

AHW-ahw 15 cm 24h 595 0.106 0.174 0.138 0.2 62.4 6.4 0.0 25.0 

ALW-alw 15 cm 24h 594 0.073 0.147 0.128 0.3 77.6 2.2 0.0 49.0 

THW-thw 0.50 h 25h 595 -0.084 0.450 0.443 1.5 72.4 1.3 0.0 0.0 

TLW-tlw 0.50 h 25h 594 0.214 0.517 0.471 0.5 63.6 5.2 0.0 37.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 10% tidal range 

H 87600 0.037 

h 87600 0.199 

H-h 24 cm 24h 87600 -0.163 0.289 0.239 7.9 56.2 1.5 6.0 3.0 0.00 0.97 

AHW-ahw 24 cm 24h 706 -0.021 0.104 0.102 0.1 98.3 0.0 0.0 0.0 

ALW-alw 24 cm 24h 705 -0.145 0.202 0.142 0.0 71.3 0.0 0.0 0.0 

THW-thw 0.50 h 25h 706 -0.159 0.405 0.372 3.3 81.7 0.0 74.4 0.0 

TLW-tlw 0.50 h 25h 705 0.394 0.588 0.437 0.0 52.2 5.5 0.0 74.2 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 10% tidal range 

H 73861 0.066 

h 73861 0.078 

H-h 24 cm 24h 73861 -0.012 0.213 0.212 1.4 78.7 2.1 3.6 20.4 1.68 0.98 

AHW-ahw 24 cm 24h 595 0.106 0.174 0.138 0.2 84.0 1.3 0.0 12.0 

ALW-alw 24 cm 24h 594 0.073 0.147 0.128 0.0 94.4 1.0 0.0 12.0 

THW-thw 0.50 h 25h 595 -0.084 0.450 0.443 1.5 72.4 1.3 0.0 0.0 

TLW-tlw 0.50 h 25h 594 0.214 0.517 0.471 0.5 63.6 5.2 0.0 37.0 
- 56 -

Station: PHILADELPHIA, PA 

Observed data time period from: / 3/ 1/1984 to / 1/ 2/1985 with gaps of 14.17 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.095 

h 87600 0.095 

H-h 15 cm 24h 87600 0.000 0.130 0.130 0.4 77.4 2.3 3.1 3.4 0.00 0.99 

AHW-ahw 15 cm 24h 705 0.054 0.088 0.069 0.0 93.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 705 -0.006 0.073 0.073 0.0 96.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.073 0.359 0.351 0.3 82.7 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.117 0.397 0.380 0.0 74.2 0.3 0.0 12.7 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 70463 0.095 

h 70463 0.043 

H-h 15 cm 24h 70463 0.053 0.142 0.132 0.6 75.3 3.6 7.3 8.4 2.11 0.99 

AHW-ahw 15 cm 24h 566 0.117 0.162 0.112 0.0 63.1 4.8 0.0 63.0 

ALW-alw 15 cm 24h 568 0.071 0.112 0.088 0.2 83.1 0.9 0.0 0.0 

THW-thw 0.50 h 25h 566 -0.009 0.442 0.442 1.1 69.1 0.5 0.0 0.0 

TLW-tlw 0.50 h 25h 568 0.076 0.453 0.447 1.2 70.2 1.4 0.0 0.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.055 

h 87600 0.095 

H-h 15 cm 24h 87600 -0.040 0.136 0.130 1.3 73.1 1.4 5.0 3.1 0.00 0.99 

AHW-ahw 15 cm 24h 705 0.014 0.071 0.069 0.0 97.6 0.0 0.0 0.0 

ALW-alw 15 cm 24h 705 -0.046 0.087 0.073 0.0 93.5 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.073 0.359 0.351 0.3 82.7 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.117 0.397 0.380 0.0 74.2 0.3 0.0 12.7 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 70463 0.055 

h 70463 0.043 

H-h 15 cm 24h 70463 0.013 0.132 0.132 0.9 78.0 2.2 7.5 6.1 1.64 0.99 

AHW-ahw 15 cm 24h 566 0.077 0.136 0.112 0.0 74.7 2.8 0.0 13.0 

ALW-alw 15 cm 24h 568 0.031 0.093 0.088 0.4 92.1 0.5 0.0 0.0 

THW-thw 0.50 h 25h 566 -0.009 0.442 0.442 1.1 69.1 0.5 0.0 0.0 

TLW-tlw 0.50 h 25h 568 0.076 0.453 0.447 1.2 70.2 1.4 0.0 0.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 10% tidal range 

H 87600 0.055 

h 87600 0.095 

H-h 18 cm 24h 87600 -0.040 0.136 0.130 0.2 83.1 0.5 2.6 2.8 0.00 0.99 

AHW-ahw 18 cm 24h 705 0.014 0.071 0.069 0.0 99.9 0.0 0.0 0.0 

ALW-alw 18 cm 24h 705 -0.046 0.087 0.073 0.0 98.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.073 0.359 0.351 0.3 82.7 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.117 0.397 0.380 0.0 74.2 0.3 0.0 12.7 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 10% tidal range 

H 70463 0.055 

h 70463 0.043 

H-h 18 cm 24h 70463 0.013 0.132 0.132 0.4 86.5 1.1 5.7 5.5 0.89 0.99 

AHW-ahw 18 cm 24h 566 0.077 0.136 0.112 0.0 83.9 1.2 0.0 13.0 

ALW-alw 18 cm 24h 568 0.031 0.093 0.088 0.2 96.0 0.2 0.0 0.0 

THW-thw 0.50 h 25h 566 -0.009 0.442 0.442 1.1 69.1 0.5 0.0 0.0 

TLW-tlw 0.50 h 25h 568 0.076 0.453 0.447 1.2 70.2 1.4 0.0 0.0 
- 57 -

Station: Reedy Point,DE 

Observed data time period from: / 3/ 1/1984 to / 1/ 2/1985 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.067 

h 87600 0.067 

H-h 15 cm 24h 87600 0.000 0.113 0.113 0.3 81.6 0.6 1.6 3.4 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.043 0.086 0.075 0.0 90.4 0.0 0.0 0.0 

ALW-alw 15 cm 24h 705 0.046 0.083 0.069 0.0 93.0 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.089 0.289 0.275 0.0 91.2 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.312 0.453 0.329 0.0 63.5 0.3 0.0 12.7 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 73861 0.057 

h 73861 0.029 

H-h 15 cm 24h 73861 0.028 0.118 0.115 0.7 84.1 1.1 9.4 5.5 0.93 0.99 

AHW-ahw 15 cm 24h 594 0.030 0.105 0.101 0.5 87.9 0.7 0.0 0.0 

ALW-alw 15 cm 24h 595 0.051 0.091 0.075 0.0 90.9 0.5 0.0 0.0 

THW-thw 0.50 h 25h 594 0.135 0.499 0.481 1.2 67.7 2.9 0.0 13.0 

TLW-tlw 0.50 h 25h 595 0.256 0.518 0.451 0.2 63.9 4.7 0.0 13.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.061 

h 87600 0.067 

H-h 15 cm 24h 87600 -0.006 0.114 0.113 0.3 81.4 0.5 1.7 3.3 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.049 0.090 0.075 0.0 88.5 0.0 0.0 0.0 

ALW-alw 15 cm 24h 705 0.040 0.080 0.069 0.0 93.8 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.089 0.289 0.275 0.0 91.2 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.312 0.453 0.329 0.0 63.5 0.3 0.0 12.7 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 73861 0.051 

h 73861 0.029 

H-h 15 cm 24h 73861 0.022 0.117 0.115 0.7 84.5 1.0 9.4 5.5 0.92 0.99 

AHW-ahw 15 cm 24h 594 0.024 0.103 0.101 0.5 88.4 0.7 0.0 0.0 

ALW-alw 15 cm 24h 595 0.045 0.088 0.075 0.0 91.8 0.3 0.0 0.0 

THW-thw 0.50 h 25h 594 0.135 0.499 0.481 1.2 67.7 2.9 0.0 13.0 

TLW-tlw 0.50 h 25h 595 0.256 0.518 0.451 0.2 63.9 4.7 0.0 13.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 10% tidal range 

H 87600 0.061 

h 87600 0.067 

H-h 17 cm 24h 87600 -0.006 0.114 0.113 0.1 86.9 0.2 1.0 3.1 0.00 0.99 

AHW-ahw 17 cm 24h 705 -0.049 0.090 0.075 0.0 92.3 0.0 0.0 0.0 

ALW-alw 17 cm 24h 705 0.040 0.080 0.069 0.0 97.0 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.089 0.289 0.275 0.0 91.2 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.312 0.453 0.329 0.0 63.5 0.3 0.0 12.7 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 10% tidal range 

H 73861 0.051 

h 73861 0.029 

H-h 17 cm 24h 73861 0.022 0.117 0.115 0.5 88.9 0.6 9.2 5.3 0.69 0.99 

AHW-ahw 17 cm 24h 594 0.024 0.103 0.101 0.3 91.9 0.5 0.0 0.0 

ALW-alw 17 cm 24h 595 0.045 0.088 0.075 0.0 95.3 0.2 0.0 0.0 

THW-thw 0.50 h 25h 594 0.135 0.499 0.481 1.2 67.7 2.9 0.0 13.0 

TLW-tlw 0.50 h 25h 595 0.256 0.518 0.451 0.2 63.9 4.7 0.0 13.0 
- 58 -

Station: BRANDYWINE SHOAL LIGHT, DELAWARE BAY 

Observed data time period from: / 3/18/1984 to / 4/ 2/1984 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 -0.006 

h 87600 -0.006 

H-h 15 cm 24h 87600 0.001 0.083 0.083 0.0 92.5 0.0 1.1 2.3 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.038 0.086 0.077 0.0 90.8 0.0 0.0 0.0 

ALW-alw 15 cm 24h 705 0.005 0.067 0.067 0.0 98.7 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.025 0.207 0.205 0.0 97.4 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.060 0.221 0.213 0.0 96.0 0.1 0.0 0.0 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 3621 0.083 

h 3621 0.100 

H-h 15 cm 24h 3621 -0.018 0.089 0.087 0.6 91.5 0.1 1.9 0.3 0.41 0.99 

AHW-ahw 15 cm 24h 29 -0.018 0.098 0.097 3.4 93.1 0.0 0.0 0.0 

ALW-alw 15 cm 24h 29 -0.055 0.090 0.072 0.0 89.7 0.0 0.0 0.0 

THW-thw 0.50 h 25h 29 0.210 0.492 0.453 0.0 69.0 3.4 0.0 0.0 

TLW-tlw 0.50 h 25h 29 0.055 0.525 0.532 0.0 69.0 6.9 0.0 0.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.007 

h 87600 -0.006 

H-h 15 cm 24h 87600 0.014 0.084 0.083 0.0 91.9 0.0 0.9 2.3 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.025 0.081 0.077 0.0 92.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 705 0.018 0.070 0.067 0.0 96.7 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.025 0.207 0.205 0.0 97.4 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.060 0.221 0.213 0.0 96.0 0.1 0.0 0.0 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 3621 0.096 

h 3621 0.100 

H-h 15 cm 24h 3621 -0.005 0.088 0.087 0.2 91.8 0.2 0.6 0.5 0.19 0.99 

AHW-ahw 15 cm 24h 29 -0.005 0.096 0.097 0.0 93.1 0.0 0.0 0.0 

ALW-alw 15 cm 24h 29 -0.042 0.083 0.072 0.0 93.1 0.0 0.0 0.0 

THW-thw 0.50 h 25h 29 0.210 0.492 0.453 0.0 69.0 3.4 0.0 0.0 

TLW-tlw 0.50 h 25h 29 0.055 0.525 0.532 0.0 69.0 6.9 0.0 0.0 
- 59 -

Station: LEWES,FT MILES DE 

Observed data time period from: / 3/ 1/1984 to / 4/ 2/1984 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.023 

h 87600 0.023 

H-h 15 cm 24h 87600 0.000 0.077 0.077 0.0 95.7 0.0 1.0 1.9 0.00 0.99 

AHW-ahw 15 cm 24h 705 0.002 0.074 0.074 0.0 96.3 0.0 0.0 0.0 

ALW-alw 15 cm 24h 706 -0.030 0.084 0.079 0.1 94.9 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.097 0.217 0.194 0.0 98.6 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 706 -0.131 0.247 0.210 0.0 96.6 0.3 0.0 12.7 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 7861 0.005 

h 7861 0.023 

H-h 15 cm 24h 7861 -0.018 0.120 0.119 1.2 84.0 0.6 1.5 2.1 0.65 0.99 

AHW-ahw 15 cm 24h 61 0.030 0.100 0.097 0.0 86.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 62 -0.088 0.161 0.136 1.6 75.8 0.0 0.0 0.0 

THW-thw 0.50 h 25h 61 -0.038 0.575 0.579 3.3 55.7 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 62 0.105 0.727 0.726 1.6 46.8 12.9 0.0 12.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.012 

h 87600 0.023 

H-h 15 cm 24h 87600 -0.011 0.078 0.077 0.0 95.4 0.0 1.0 1.9 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.009 0.074 0.074 0.0 95.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 706 -0.041 0.089 0.079 0.1 92.4 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 -0.097 0.217 0.194 0.0 98.6 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 706 -0.131 0.247 0.210 0.0 96.6 0.3 0.0 12.7 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 7861 -0.006 

h 7861 0.023 

H-h 15 cm 24h 7861 -0.029 0.123 0.119 1.3 83.1 0.6 1.6 2.1 0.66 0.99 

AHW-ahw 15 cm 24h 61 0.019 0.098 0.097 0.0 86.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 62 -0.099 0.167 0.136 1.6 74.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 61 -0.038 0.575 0.579 3.3 55.7 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 62 0.105 0.727 0.726 1.6 46.8 12.9 0.0 12.0 
- 60 -

Station: OCEAN CITY, FISHING PIER 

Observed data time period from: / 4/ 8/1984 to / 1/ 2/1985 with gaps of 4.42 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.027 

h 87600 0.027 

H-h 15 cm 24h 87600 0.000 0.083 0.083 0.0 93.3 0.0 0.8 1.1 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.008 0.086 0.086 0.0 91.1 0.1 0.0 0.0 

ALW-alw 15 cm 24h 705 -0.009 0.084 0.084 0.0 92.8 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.140 0.292 0.256 0.1 88.4 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.174 0.304 0.249 0.0 86.8 0.0 0.0 0.0 

 SCENARIO: HINDCAST--- vertical datum set to MSL of observation period 

H 63642 0.022 

h 63642 0.063 

H-h 15 cm 24h 63642 -0.041 0.107 0.099 0.6 84.3 0.1 3.1 2.3 0.58 0.98 

AHW-ahw 15 cm 24h 508 -0.037 0.099 0.092 0.4 89.4 0.4 0.0 0.0 

ALW-alw 15 cm 24h 509 -0.066 0.114 0.093 0.4 80.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 508 0.346 0.815 0.738 2.8 44.7 14.8 13.0 50.0 

TLW-tlw 0.50 h 25h 509 0.313 0.740 0.672 2.0 49.1 13.6 0.0 62.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.027 

h 87600 0.027 

H-h 15 cm 24h 87600 0.000 0.083 0.083 0.0 93.3 0.0 0.8 1.1 0.00 0.99 

AHW-ahw 15 cm 24h 705 -0.008 0.086 0.086 0.0 91.1 0.1 0.0 0.0 

ALW-alw 15 cm 24h 705 -0.009 0.084 0.084 0.0 92.8 0.0 0.0 0.0 

THW-thw 0.50 h 25h 705 0.140 0.292 0.256 0.1 88.4 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 705 0.174 0.304 0.249 0.0 86.8 0.0 0.0 0.0 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 63642 0.022 

h 63642 0.063 

H-h 15 cm 24h 63642 -0.041 0.107 0.099 0.6 84.3 0.1 3.1 2.3 0.58 0.98 

AHW-ahw 15 cm 24h 508 -0.037 0.099 0.092 0.4 89.4 0.4 0.0 0.0 

ALW-alw 15 cm 24h 509 -0.066 0.114 0.093 0.4 80.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 508 0.346 0.815 0.738 2.8 44.7 14.8 13.0 50.0 

TLW-tlw 0.50 h 25h 509 0.313 0.740 0.672 2.0 49.1 13.6 0.0 62.0 
- 61 -

Station: CHESAPEAKE CITY 

Observed data time period from: / 6/ 7/1984 to /11/ 6/1984 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY --- vertical datum set to MSL of observation period 

H 87600 0.000 

h 87600 0.000 

H-h 15 cm 24h 87600 0.000 0.097 0.097 0.1 88.2 0.0 0.9 0.0 0.00 0.98 

AHW-ahw 15 cm 24h 704 -0.039 0.094 0.085 0.0 85.4 0.0 0.0 0.0 

ALW-alw 15 cm 24h 704 0.041 0.088 0.077 0.0 98.4 0.0 0.0 0.0 

THW-thw 0.50 h 25h 704 0.213 0.356 0.285 0.0 79.8 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 704 0.572 0.737 0.465 0.0 41.9 16.2 0.0136.2 

 SCENARIO: HINDCAST --- vertical datum set to MSL of observation period 

H 36421 0.052 

h 36421 0.000 

H-h 15 cm 24h 36421 0.052 0.090 0.074 0.0 91.4 0.2 0.0 2.5 0.10 0.98 

AHW-ahw 15 cm 24h 293 0.034 0.082 0.074 0.0 92.5 0.7 0.0 0.0 

ALW-alw 15 cm 24h 293 0.086 0.099 0.048 0.0 93.9 0.0 0.0 0.0 

THW-thw 0.50 h 25h 293 0.282 0.586 0.515 0.7 61.1 10.6 0.0 13.0 

TLW-tlw 0.50 h 25h 293 0.637 0.898 0.634 0.7 37.5 28.3 0.0 75.0 

 SCENARIO: TIDAL SIMULATION ONLY ---- vertical datum set to DBOFS model datum 

H 87600 0.027 

h 87600 0.000 

H-h 15 cm 24h 87600 0.027 0.101 0.097 0.0 86.3 0.0 0.4 0.0 0.00 0.98 

AHW-ahw 15 cm 24h 704 -0.012 0.086 0.085 0.0 93.0 0.0 0.0 0.0 

ALW-alw 15 cm 24h 704 0.068 0.103 0.077 0.0 86.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 704 0.213 0.356 0.285 0.0 79.8 0.1 0.0 0.0 

TLW-tlw 0.50 h 25h 704 0.572 0.737 0.465 0.0 41.9 16.2 0.0136.2 

 SCENARIO: HINDCAST ---- vertical datum set to DBOFS model datum 

H 36421 0.079 

h 36421 0.000 

H-h 15 cm 24h 36421 0.079 0.108 0.074 0.0 83.5 0.3 0.0 2.8 0.13 0.97 

AHW-ahw 15 cm 24h 293 0.061 0.096 0.074 0.0 89.4 1.0 0.0 0.0 

ALW-alw 15 cm 24h 293 0.113 0.123 0.048 0.0 76.8 0.0 0.0 0.0 

THW-thw 0.50 h 25h 293 0.282 0.586 0.515 0.7 61.1 10.6 0.0 13.0 

TLW-tlw 0.50 h 25h 293 0.637 0.898 0.634 0.7 37.5 28.3 0.0 75.0 
- 62 -
- 63 -

APPENDIX C. Skill Assessment Scores of Water Levels: Nowcast/Forecast DBOFS 

Version 1.1 

Station: CAPE MAY CANAL,DELAWARE BAY 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.130 

h 21841 0.125 

H-h 15 cm 24h 21841 0.004 0.094 0.093 0.3 92.6 0.5 5.4 4.1 0.28 0.99 

AHW-ahw 15 cm 24h 176 -0.021 0.116 0.115 0.6 92.6 0.6 0.0 0.0 

ALW-alw 15 cm 24h 176 0.029 0.098 0.093 0.0 89.8 0.6 0.0 0.0 

THW-thw 0.50 h 25h 176 0.096 0.329 0.316 0.0 86.9 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 176 0.041 0.357 0.355 0.0 84.7 1.7 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.002 0.084 0.084 0.0 93.2 0.0 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 0.007 0.087 0.087 0.0 91.9 0.0 0.0 0.0 0.00 

H12-h12 15 cm 24h 296 0.004 0.089 0.089 0.0 91.6 0.0 0.0 0.0 0.00 

H18-h18 15 cm 24h 296 -0.008 0.092 0.092 0.0 90.9 0.0 0.0 0.0 0.00 

H24-h24 15 cm 24h 296 -0.011 0.098 0.098 0.0 87.2 0.0 0.0 0.0 0.00 

AHW-ahw 15 cm 24h 129 -0.031 0.096 0.091 0.8 90.7 0.0 

ALW-alw 15 cm 24h 131 0.032 0.096 0.091 0.0 87.0 0.0 

THW-thw 0.50 h 25h 129 0.091 0.304 0.291 0.0 91.5 0.8 

TLW-tlw 0.50 h 25h 131 0.059 0.366 0.363 0.0 84.0 0.0 

Station: Ship John Shoal 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.119 

h 21841 0.114 

H-h 15 cm 24h 21841 0.004 0.149 0.149 0.7 89.0 0.6 8.0 4.3 0.88 0.99 

AHW-ahw 15 cm 24h 175 0.046 0.117 0.108 0.0 86.9 1.1 0.0 0.0 

ALW-alw 15 cm 24h 174 0.012 0.085 0.084 0.0 92.5 0.0 0.0 0.0 

THW-thw 0.50 h 25h 175 0.070 0.284 0.276 0.0 93.1 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 174 0.130 0.299 0.270 0.0 86.2 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.005 0.080 0.080 0.0 93.6 0.0 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 -0.003 0.079 0.079 0.0 92.6 0.0 0.0 0.0 0.00 

H12-h12 15 cm 24h 296 -0.004 0.086 0.086 0.0 92.2 0.3 0.0 0.0 0.00 

H18-h18 15 cm 24h 296 -0.015 0.088 0.087 0.0 91.2 0.0 0.0 0.0 0.00 

H24-h24 15 cm 24h 296 -0.015 0.133 0.132 0.0 89.5 0.3 0.0 0.0 0.00 

AHW-ahw 15 cm 24h 132 0.023 0.096 0.093 0.0 87.9 0.0 

ALW-alw 15 cm 24h 131 0.011 0.088 0.088 0.0 91.6 0.0 

THW-thw 0.50 h 25h 132 0.065 0.284 0.278 0.0 96.2 0.8 

TLW-tlw 0.50 h 25h 131 0.126 0.311 0.286 0.0 93.1 0.0 
- 64 -

Station: Tacony-Palmyra Bridge 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.101 

h 21841 0.094 

H-h 15 cm 24h 21841 0.007 0.157 0.156 0.7 75.0 2.6 5.6 3.9 2.09 0.99 

AHW-ahw 15 cm 24h 175 0.061 0.115 0.097 0.6 92.0 1.1 0.0 0.0 

ALW-alw 15 cm 24h 176 0.085 0.124 0.091 0.0 80.7 2.8 0.0 24.4 

THW-thw 0.50 h 25h 175 -0.188 0.332 0.274 0.0 89.1 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 176 -0.116 0.278 0.253 0.0 90.3 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.010 0.132 0.132 0.0 76.4 2.4 0.0 0.0 2.03 

H06-h06 15 cm 24h 296 -0.002 0.131 0.131 0.0 78.4 2.0 0.0 0.0 1.35 

H12-h12 15 cm 24h 296 -0.009 0.129 0.129 0.3 78.0 2.0 0.0 0.0 1.69 

H18-h18 15 cm 24h 296 -0.011 0.132 0.132 0.0 75.3 2.7 0.0 0.0 2.03 

H24-h24 15 cm 24h 296 -0.024 0.130 0.128 0.3 77.7 1.4 0.0 0.0 1.69 

AHW-ahw 15 cm 24h 131 0.044 0.082 0.069 0.0 96.2 0.0 

ALW-alw 15 cm 24h 130 0.069 0.106 0.080 0.0 84.6 0.8 

THW-thw 0.50 h 25h 131 -0.208 0.300 0.217 0.0 90.8 0.0 

TLW-tlw 0.50 h 25h 130 -0.118 0.283 0.258 0.0 89.2 0.0 

Station: BURLINGTON, DELAWARE RIVER 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.094 

h 21841 0.088 

H-h 15 cm 24h 21841 0.007 0.196 0.196 3.4 62.3 4.6 5.9 4.2 5.04 0.98 

AHW-ahw 15 cm 24h 175 0.096 0.143 0.106 0.6 73.1 1.7 0.0 0.0 

ALW-alw 15 cm 24h 176 0.116 0.152 0.099 0.0 69.3 2.8 0.0 36.6 

THW-thw 0.50 h 25h 175 -0.209 0.329 0.254 0.0 87.4 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 176 -0.126 0.286 0.257 0.6 90.9 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.007 0.162 0.162 2.4 66.2 4.7 0.0 0.0 4.39 

H06-h06 15 cm 24h 296 -0.003 0.159 0.159 1.7 66.6 3.7 0.0 0.0 3.04 

H12-h12 15 cm 24h 296 -0.011 0.158 0.158 1.0 64.5 3.0 0.0 0.0 2.36 

H18-h18 15 cm 24h 296 -0.011 0.161 0.161 2.4 64.9 2.7 0.0 0.0 3.72 

H24-h24 15 cm 24h 296 -0.028 0.153 0.151 3.7 65.2 1.4 0.0 0.0 3.72 

AHW-ahw 15 cm 24h 131 0.076 0.110 0.079 0.0 84.0 0.0 

ALW-alw 15 cm 24h 130 0.101 0.131 0.084 0.0 69.2 2.3 

THW-thw 0.50 h 25h 131 -0.228 0.305 0.202 0.0 90.8 0.0 

TLW-tlw 0.50 h 25h 130 -0.118 0.289 0.265 0.0 91.5 0.0 
- 65 -

Station: Marcus Hook 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.137 

h 21841 0.133 

H-h 15 cm 24h 21841 0.004 0.134 0.134 0.6 82.3 1.2 7.5 2.9 0.89 0.99 

AHW-ahw 15 cm 24h 176 -0.024 0.118 0.116 0.6 93.8 0.6 0.0 0.0 

ALW-alw 15 cm 24h 175 0.081 0.112 0.078 0.0 84.0 1.1 0.0 0.0 

THW-thw 0.50 h 25h 176 0.076 0.258 0.247 0.6 92.6 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 175 0.070 0.306 0.298 0.0 93.1 0.6 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.010 0.116 0.116 0.0 82.4 1.4 0.0 0.0 0.34 

H06-h06 15 cm 24h 296 -0.007 0.118 0.118 0.3 80.1 0.7 0.0 0.0 0.68 

H12-h12 15 cm 24h 296 -0.009 0.122 0.122 0.7 79.4 0.7 0.0 0.0 0.68 

H18-h18 15 cm 24h 296 -0.012 0.125 0.124 0.7 77.7 1.0 0.0 0.0 0.68 

H24-h24 15 cm 24h 296 -0.022 0.130 0.129 0.3 75.0 1.0 0.0 0.0 0.68 

AHW-ahw 15 cm 24h 131 -0.044 0.086 0.073 0.0 92.4 0.0 

ALW-alw 15 cm 24h 131 0.062 0.094 0.071 0.0 87.8 0.0 

THW-thw 0.50 h 25h 131 0.082 0.250 0.237 0.0 97.7 0.0 

TLW-tlw 0.50 h 25h 131 0.065 0.280 0.273 0.0 90.8 0.0 

Station: PHILADELPHIA, PA 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.107 

h 21841 0.100 

H-h 15 cm 24h 21841 0.007 0.135 0.135 0.6 83.1 2.1 5.6 2.3 1.65 0.99 

AHW-ahw 15 cm 24h 176 0.039 0.118 0.112 1.1 93.8 1.1 0.0 0.0 

ALW-alw 15 cm 24h 176 0.094 0.127 0.086 0.0 79.0 2.3 0.0 12.4 

THW-thw 0.50 h 25h 176 -0.143 0.324 0.292 0.6 92.0 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 176 -0.119 0.278 0.252 0.0 89.8 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.014 0.120 0.119 0.0 83.1 2.7 0.0 0.0 2.36 

H06-h06 15 cm 24h 296 0.011 0.119 0.118 0.0 83.1 2.7 0.0 0.0 2.36 

H12-h12 15 cm 24h 296 0.006 0.118 0.118 0.0 84.1 3.0 0.0 0.0 2.70 

H18-h18 15 cm 24h 296 0.004 0.122 0.122 0.0 81.8 3.0 0.0 0.0 3.04 

H24-h24 15 cm 24h 296 -0.008 0.120 0.120 0.0 83.1 2.4 0.0 0.0 2.03 

AHW-ahw 15 cm 24h 131 0.037 0.079 0.070 0.0 93.9 0.0 

ALW-alw 15 cm 24h 131 0.091 0.121 0.081 0.0 77.1 1.5 

THW-thw 0.50 h 25h 131 -0.127 0.266 0.234 0.0 93.1 0.0 

TLW-tlw 0.50 h 25h 131 -0.120 0.285 0.260 0.0 90.8 0.0 
- 66 -

Station: Newbold, PA 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.047 

h 21841 0.042 

H-h 15 cm 24h 21841 0.006 0.214 0.214 5.1 59.2 4.7 6.0 5.5 5.52 0.98 

AHW-ahw 15 cm 24h 175 0.129 0.176 0.121 0.6 54.9 1.7 0.0 0.0 

ALW-alw 15 cm 24h 176 0.147 0.181 0.106 0.0 59.7 4.5 0.0 36.8 

THW-thw 0.50 h 25h 175 -0.255 0.360 0.254 0.0 83.4 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 176 -0.056 0.292 0.287 0.6 92.6 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.002 0.164 0.164 4.1 66.6 2.7 0.0 0.0 3.72 

H06-h06 15 cm 24h 296 -0.010 0.164 0.164 4.7 65.9 3.4 0.0 0.0 4.39 

H12-h12 15 cm 24h 296 -0.021 0.162 0.161 5.1 65.5 1.7 0.0 0.0 3.72 

H18-h18 15 cm 24h 296 -0.019 0.163 0.162 5.7 68.9 1.7 0.0 0.0 4.05 

H24-h24 15 cm 24h 296 -0.032 0.165 0.163 5.7 65.5 1.4 0.0 0.0 4.05 

AHW-ahw 15 cm 24h 131 0.103 0.139 0.094 0.0 66.4 1.5 

ALW-alw 15 cm 24h 131 0.129 0.156 0.088 0.0 62.6 3.8 

THW-thw 0.50 h 25h 131 -0.272 0.354 0.228 0.0 82.4 0.0 

TLW-tlw 0.50 h 25h 131 -0.047 0.271 0.268 0.0 95.4 0.0 

Station: Delaware City, DE 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.111 

h 21841 0.107 

H-h 15 cm 24h 21841 0.004 0.136 0.136 0.6 87.0 1.0 7.8 3.5 0.92 0.99 

AHW-ahw 15 cm 24h 175 0.003 0.089 0.090 0.0 94.9 1.1 0.0 0.0 

ALW-alw 15 cm 24h 174 0.068 0.098 0.070 0.0 88.5 0.6 0.0 0.0 

THW-thw 0.50 h 25h 175 -0.027 0.250 0.250 0.0 94.9 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 174 0.090 0.267 0.252 0.0 90.2 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.009 0.101 0.101 0.0 85.8 0.7 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 -0.012 0.102 0.101 0.3 85.8 0.0 0.0 0.0 0.34 

H12-h12 15 cm 24h 296 -0.013 0.111 0.110 0.0 84.8 0.3 0.0 0.0 0.00 

H18-h18 15 cm 24h 296 -0.018 0.105 0.104 0.7 83.8 0.0 0.0 0.0 0.34 

H24-h24 15 cm 24h 296 -0.020 0.148 0.147 1.7 82.1 0.3 0.0 0.0 0.68 

AHW-ahw 15 cm 24h 131 -0.028 0.086 0.081 0.0 92.4 0.0 

ALW-alw 15 cm 24h 130 0.053 0.090 0.073 0.0 90.0 0.0 

THW-thw 0.50 h 25h 131 -0.044 0.234 0.231 0.0 95.4 0.0 

TLW-tlw 0.50 h 25h 130 0.096 0.279 0.263 0.0 93.8 0.0 
- 67 -

Station: Reedy Point,DE 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.117 

h 21841 0.113 

H-h 15 cm 24h 21841 0.004 0.134 0.133 0.6 89.3 0.8 7.9 3.6 1.02 0.99 

AHW-ahw 15 cm 24h 175 0.022 0.086 0.083 0.0 96.6 0.6 0.0 0.0 

ALW-alw 15 cm 24h 174 0.055 0.089 0.070 0.0 90.2 0.0 0.0 0.0 

THW-thw 0.50 h 25h 175 -0.101 0.282 0.264 0.0 91.4 0.0 0.0 0.0 

TLW-tlw 0.50 h 25h 174 0.034 0.277 0.275 0.0 90.2 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.010 0.092 0.092 0.0 88.9 0.0 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 -0.004 0.093 0.093 0.0 87.2 0.0 0.0 0.0 0.00 

H12-h12 15 cm 24h 296 -0.007 0.101 0.101 0.0 88.2 0.3 0.0 0.0 0.00 

H18-h18 15 cm 24h 296 -0.013 0.096 0.095 0.0 86.5 0.0 0.0 0.0 0.00 

H24-h24 15 cm 24h 296 -0.016 0.134 0.134 0.7 84.8 0.3 0.0 0.0 0.00 

AHW-ahw 15 cm 24h 131 -0.003 0.082 0.082 0.0 94.7 0.0 

ALW-alw 15 cm 24h 130 0.045 0.085 0.073 0.0 90.0 0.0 

THW-thw 0.50 h 25h 131 -0.106 0.261 0.239 0.0 95.4 0.0 

TLW-tlw 0.50 h 25h 130 0.037 0.287 0.286 0.0 93.1 0.0 

Station: BRANDYWINE SHOAL LIGHT, DELAWARE BAY 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.135 

h 21841 0.128 

H-h 15 cm 24h 21841 0.006 0.104 0.104 0.4 91.7 0.5 6.8 4.4 0.37 0.99 

AHW-ahw 15 cm 24h 175 -0.011 0.103 0.103 0.6 93.7 0.6 0.0 0.0 

ALW-alw 15 cm 24h 176 0.008 0.085 0.085 0.0 92.0 0.6 0.0 0.0 

THW-thw 0.50 h 25h 175 0.107 0.287 0.267 0.0 89.7 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 176 0.169 0.367 0.326 0.0 86.4 1.1 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.006 0.082 0.081 0.0 93.6 0.0 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 0.007 0.083 0.083 0.0 93.6 0.0 0.0 0.0 0.00 

H12-h12 15 cm 24h 296 0.004 0.086 0.086 0.0 91.2 0.0 0.0 0.0 0.00 

H18-h18 15 cm 24h 296 -0.008 0.090 0.090 0.0 90.9 0.0 0.0 0.0 0.00 

H24-h24 15 cm 24h 296 -0.010 0.099 0.099 0.0 88.2 0.3 0.0 0.0 0.00 

AHW-ahw 15 cm 24h 129 -0.026 0.096 0.093 0.8 87.6 0.0 

ALW-alw 15 cm 24h 131 0.009 0.090 0.089 0.0 91.6 0.0 

THW-thw 0.50 h 25h 129 0.107 0.314 0.297 0.0 94.6 1.6 

TLW-tlw 0.50 h 25h 131 0.184 0.369 0.321 0.0 82.4 1.5 
- 68 -

Station: LEWES,FT MILES DE 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.114 

h 21841 0.110 

H-h 15 cm 24h 21841 0.004 0.087 0.087 0.3 93.5 0.3 5.6 3.6 0.26 0.99 

AHW-ahw 15 cm 24h 176 0.005 0.114 0.114 0.6 93.8 0.6 0.0 0.0 

ALW-alw 15 cm 24h 176 -0.011 0.089 0.088 0.0 92.6 0.6 0.0 0.0 

THW-thw 0.50 h 25h 176 -0.006 0.351 0.352 0.6 84.7 0.6 0.0 0.0 

TLW-tlw 0.50 h 25h 176 -0.052 0.396 0.394 0.6 82.4 1.1 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.003 0.081 0.081 0.0 92.9 0.0 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 -0.004 0.086 0.086 0.0 92.6 0.0 0.0 0.0 0.00 

H12-h12 15 cm 24h 296 -0.009 0.086 0.086 0.0 89.9 0.0 0.0 0.0 0.00 

H18-h18 15 cm 24h 296 -0.020 0.092 0.089 0.0 88.2 0.0 0.0 0.0 0.00 

H24-h24 15 cm 24h 296 -0.024 0.097 0.094 0.0 86.8 0.0 0.0 0.0 0.00 

AHW-ahw 15 cm 24h 129 -0.016 0.091 0.089 0.8 92.2 0.0 

ALW-alw 15 cm 24h 131 -0.017 0.093 0.092 0.0 90.1 0.0 

THW-thw 0.50 h 25h 129 0.003 0.360 0.361 0.0 86.0 0.8 

TLW-tlw 0.50 h 25h 131 -0.043 0.384 0.383 0.8 84.7 2.3 

Station: CHESAPEAKE CITY 

Observed data time period from: / 4/15/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

----------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

----------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST ---- vertical datum set to DBOFS model datum 

H 21841 0.130 

h 21841 0.129 

H-h 15 cm 24h 21841 0.001 0.061 0.061 0.3 98.4 0.2 4.1 2.4 0.38 0.99 

AHW-ahw 15 cm 24h 176 0.002 0.052 0.052 0.0 98.9 0.0 0.0 0.0 

ALW-alw 15 cm 24h 175 0.028 0.043 0.032 0.0 99.4 0.0 0.0 0.0 

THW-thw 0.50 h 25h 176 0.105 0.398 0.385 0.6 79.5 1.7 0.0 0.0 

TLW-tlw 0.50 h 25h 175 0.293 0.611 0.538 0.0 69.1 7.4 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST ---- vertical datum set to DBOFS model datum 

H00-h00 15 cm 24h 296 0.001 0.050 0.050 0.0 99.3 0.0 0.0 0.0 0.00 

H06-h06 15 cm 24h 296 -0.005 0.100 0.100 0.0 87.8 0.3 0.0 0.0 0.34 

H12-h12 15 cm 24h 296 -0.004 0.131 0.131 1.4 78.0 1.7 6.0 12.0 1.69 

H18-h18 15 cm 24h 296 0.000 0.154 0.154 2.7 72.0 2.7 6.0 12.0 3.72 

H24-h24 15 cm 24h 296 0.001 0.163 0.164 3.4 72.6 2.4 12.0 18.0 4.05 

AHW-ahw 15 cm 24h 131 -0.006 0.119 0.119 0.8 86.3 1.5 

ALW-alw 15 cm 24h 129 0.022 0.111 0.110 0.8 87.6 2.3 

THW-thw 0.50 h 25h 131 0.322 0.498 0.382 0.0 68.7 3.1 

TLW-tlw 0.50 h 25h 129 0.758 1.119 0.826 1.6 38.0 39.5 
- 69 -

APPENDIX D. Comparison of Current Harmonic Constants 

Station: VEL_002 

Observation: Least Squares H.A. Beginning 4-24-1984 at Hour 20.70 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.024) Modeled( R= 0.017) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 147 DIR= 144 

 1 M(2) 0.977 170.8 0.807 164.4 -0.170 -6.4 

 2 S(2) 0.143 190.1 0.166 187.0 0.023 -3.1 

 3 N(2) 0.183 146.6 0.186 130.2 0.003 -16.4 

 4 K(1) 0.096 312.1 0.063 301.1 -0.033 -11.0 

 5 M(4) 0.084 76.9 0.001 17.1 -0.083 -59.8 

 6 O(1) 0.084 298.0 0.053 298.8 -0.031 0.8 

 7 M(6) 0.063 125.3 0.022 89.1 -0.041 -36.2 

 8 MK(3) 0.031 245.5 0.009 277.1 -0.022 31.6 

 9 S(4) 0.003 135.8 0.002 0.6 -0.001 -135.2 

 10 MN(4) 0.030 59.8 0.007 274.7 -0.023 145.1 

 11 NU(2) 0.000 0.0 0.011 180.0 0.000 0.0 

 12 S(6) 0.005 335.2 0.000 0.0 -0.005 24.8 

 13 MU(2) 0.000 0.0 0.028 318.5 0.000 0.0 

 14 2N(2) 0.023 112.8 0.004 240.9 -0.019 128.1 

 15 OO(1) 0.006 177.9 0.001 82.4 -0.005 -95.5 

 16 LAMBDA(2) 0.000 0.0 0.007 154.1 0.000 0.0 

 17 S(1) 0.000 0.0 0.003 284.0 0.000 0.0 

 18 M(1) 0.004 314.4 0.002 31.6 -0.002 77.2 

 19 J(1) 0.003 200.1 0.007 159.7 0.004 -40.4 

 20 MM 0.000 0.0 0.005 334.2 0.000 0.0 

 21 SSA 0.000 0.0 0.001 176.8 0.000 0.0 

 22 SA 0.000 0.0 0.071 76.6 0.000 0.0 

 23 MSF 0.000 0.0 0.009 5.7 0.000 0.0 

 24 MF 0.000 0.0 0.001 29.6 0.000 0.0 

 25 RHO(1) 0.021 240.5 0.002 355.9 -0.019 115.4 

 26 Q(1) 0.023 300.9 0.005 351.0 -0.018 50.1 

 27 T(2) 0.000 0.0 0.007 90.5 0.000 0.0 

 28 R(2) 0.000 0.0 0.004 160.6 0.000 0.0 

 29 2Q(1) 0.003 6.5 0.000 0.0 -0.003 -6.5 

 30 P(1) 0.000 0.0 0.004 151.7 0.000 0.0 

 31 2SM(2) 0.014 53.7 0.006 49.5 -0.008 -4.2 

 32 M(3) 0.012 178.8 0.004 189.9 -0.008 11.1 

 33 L(2) 0.041 228.0 0.055 229.4 0.014 1.4 

 34 2MK(3) 0.019 260.6 0.012 280.9 -0.007 20.3 

 35 K(2) 0.000 0.0 0.006 240.2 0.000 0.0 

 36 M(8) 0.027 230.3 0.002 271.6 -0.025 41.3 

 37 MS(4) 0.014 98.4 0.006 346.0 -0.008 112.4 
- 70 -

Station: VEL_003 

Observation: 29-Day H.A. Beginning 4- 3-1984 at Hour 22.00 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.014) Modeled( R= 0.002) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 145 DIR= 134 

 1 M(2) 0.704 141.2 0.797 143.7 0.093 2.5 

 2 S(2) 0.134 164.6 0.160 172.5 0.026 7.9 

 3 N(2) 0.146 116.0 0.175 114.1 0.029 -1.9 

 4 K(1) 0.052 295.6 0.042 280.8 -0.010 -14.8 

 5 M(4) 0.033 4.9 0.028 22.7 -0.005 17.8 

 6 O(1) 0.032 286.3 0.037 282.8 0.005 -3.5 

 7 M(6) 0.015 328.1 0.021 317.3 0.006 -10.8 

 8 MK(3) 0.000 0.0 0.006 196.0 0.000 0.0 

 9 S(4) 0.007 1.2 0.001 10.5 -0.006 9.3 

 10 MN(4) 0.000 0.0 0.013 342.6 0.000 0.0 

 11 NU(2) 0.028 119.4 0.010 136.1 -0.018 16.7 

 12 S(6) 0.005 164.3 0.001 2.6 -0.004 -161.7 

 13 MU(2) 0.000 0.0 0.034 282.1 0.000 0.0 

 14 2N(2) 0.019 90.8 0.005 231.9 -0.014 141.1 

 15 OO(1) 0.001 304.9 0.000 0.0 -0.001 55.1 

 16 LAMBDA(2) 0.005 152.1 0.008 111.7 0.003 -40.4 

 17 S(1) 0.000 0.0 0.002 59.1 0.000 0.0 

 18 M(1) 0.002 291.0 0.000 324.8 -0.002 33.8 

 19 J(1) 0.002 300.2 0.003 58.2 0.001 118.0 

 20 MM 0.000 0.0 0.003 328.2 0.000 0.0 

 21 SSA 0.000 0.0 0.003 165.1 0.000 0.0 

 22 SA 0.000 0.0 0.006 133.5 0.000 0.0 

 23 MSF 0.000 0.0 0.008 356.9 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.001 282.4 0.001 209.1 0.000 -73.3 

 26 Q(1) 0.006 281.7 0.006 293.4 0.000 11.7 

 27 T(2) 0.008 163.7 0.000 0.0 -0.008 -163.7 

 28 R(2) 0.001 165.6 0.003 352.9 0.002 172.7 

 29 2Q(1) 0.001 277.2 0.000 0.0 -0.001 82.8 

 30 P(1) 0.017 294.9 0.004 63.4 -0.013 128.5 

 31 2SM(2) 0.000 0.0 0.005 354.3 0.000 0.0 

 32 M(3) 0.000 0.0 0.003 128.2 0.000 0.0 

 33 L(2) 0.021 116.0 0.059 179.2 0.038 63.2 

 34 2MK(3) 0.000 0.0 0.007 211.3 0.000 0.0 

 35 K(2) 0.036 166.5 0.006 187.9 -0.030 21.4 

 36 M(8) 0.003 222.9 0.003 240.2 0.000 17.3 

 37 MS(4) 0.000 0.0 0.008 33.6 0.000 0.0 
- 71 -

Station: VEL_005 

Observation: Least Squares H.A. Beginning 4- 3-1984 at Hour 20.00 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.010) Modeled( R= 0.002) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 132 DIR= 126 

 1 M(2) 0.781 127.5 0.782 130.5 0.001 3.0 

 2 S(2) 0.121 150.5 0.153 160.8 0.032 10.3 

 3 N(2) 0.127 95.8 0.162 102.2 0.035 6.4 

 4 K(1) 0.043 272.0 0.034 274.6 -0.009 2.6 

 5 M(4) 0.021 341.9 0.011 353.9 -0.010 12.0 

 6 O(1) 0.030 278.8 0.031 278.8 0.001 0.0 

 7 M(6) 0.031 252.5 0.031 260.7 0.000 8.2 

 8 MK(3) 0.005 217.5 0.005 190.5 0.000 -27.0 

 9 S(4) 0.006 142.7 0.000 0.0 -0.006 -142.7 

 10 MN(4) 0.003 321.1 0.005 301.2 0.002 -19.9 

 11 NU(2) 0.000 0.0 0.014 121.3 0.000 0.0 

 12 S(6) 0.004 246.6 0.001 350.3 -0.003 103.7 

 13 MU(2) 0.000 0.0 0.043 269.1 0.000 0.0 

 14 2N(2) 0.062 170.4 0.005 221.1 -0.057 50.7 

 15 OO(1) 0.007 292.2 0.000 0.0 -0.007 67.8 

 16 LAMBDA(2) 0.000 0.0 0.010 100.9 0.000 0.0 

 17 S(1) 0.000 0.0 0.001 50.8 0.000 0.0 

 18 M(1) 0.003 248.6 0.000 344.9 -0.003 96.3 

 19 J(1) 0.005 185.6 0.003 37.1 -0.002 -148.5 

 20 MM 0.000 0.0 0.008 214.1 0.000 0.0 

 21 SSA 0.000 0.0 0.000 0.0 0.000 0.0 

 22 SA 0.000 0.0 0.003 192.5 0.000 0.0 

 23 MSF 0.000 0.0 0.004 238.1 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.014 344.7 0.000 0.0 -0.014 15.3 

 26 Q(1) 0.010 98.1 0.005 288.0 -0.005 170.1 

 27 T(2) 0.000 0.0 0.001 250.7 0.000 0.0 

 28 R(2) 0.000 0.0 0.003 316.8 0.000 0.0 

 29 2Q(1) 0.004 142.6 0.000 0.0 -0.004 -142.6 

 30 P(1) 0.000 0.0 0.004 55.7 0.000 0.0 

 31 2SM(2) 0.033 326.9 0.005 341.4 -0.028 14.5 

 32 M(3) 0.012 172.1 0.004 110.5 -0.008 -61.6 

 33 L(2) 0.117 183.3 0.068 164.1 -0.049 -19.2 

 34 2MK(3) 0.022 176.6 0.007 201.3 -0.015 24.7 

 35 K(2) 0.000 0.0 0.007 168.0 0.000 0.0 

 36 M(8) 0.009 113.2 0.003 80.0 -0.006 -33.2 

 37 MS(4) 0.005 254.7 0.003 336.4 -0.002 81.7 
- 72 -

Station: VEL_012 

Observation: 29-Day H.A. Beginning 10-20-1984 at Hour 13.40 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.702) Modeled( R= 0.315) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 59 DIR= 118 

 1 M(2) 0.074 82.0 0.136 110.3 0.062 28.3 

 2 S(2) 0.014 110.8 0.030 134.7 0.016 23.9 

 3 N(2) 0.016 58.8 0.041 82.0 0.025 23.2 

 4 K(1) 0.014 33.8 0.011 239.1 -0.003 154.7 

 5 M(4) 0.002 155.1 0.006 284.7 0.004 129.6 

 6 O(1) 0.017 278.4 0.006 279.5 -0.011 1.1 

 7 M(6) 0.004 18.3 0.002 55.0 -0.002 36.7 

 8 MK(3) 0.000 0.0 0.000 327.8 0.000 0.0 

 9 S(4) 0.003 294.2 0.000 294.2 -0.003 0.0 

 10 MN(4) 0.000 0.0 0.003 249.8 0.000 0.0 

 11 NU(2) 0.003 61.9 0.001 184.1 -0.002 122.2 

 12 S(6) 0.001 141.5 0.000 0.0 -0.001 -141.5 

 13 MU(2) 0.000 0.0 0.001 285.2 0.000 0.0 

 14 2N(2) 0.002 35.7 0.001 128.0 -0.001 92.3 

 15 OO(1) 0.001 149.3 0.000 318.1 -0.001 168.8 

 16 LAMBDA(2) 0.001 95.3 0.000 168.9 -0.001 73.6 

 17 S(1) 0.000 0.0 0.001 249.5 0.000 0.0 

 18 M(1) 0.001 336.1 0.000 223.2 -0.001 -112.9 

 19 J(1) 0.001 91.1 0.000 288.0 -0.001 163.1 

 20 MM 0.000 0.0 0.008 179.5 0.000 0.0 

 21 SSA 0.000 0.0 0.011 268.6 0.000 0.0 

 22 SA 0.000 0.0 0.013 123.9 0.000 0.0 

 23 MSF 0.000 0.0 0.003 275.7 0.000 0.0 

 24 MF 0.000 0.0 0.006 147.8 0.000 0.0 

 25 RHO(1) 0.001 228.8 0.000 259.7 -0.001 30.9 

 26 Q(1) 0.003 221.1 0.002 247.8 -0.001 26.7 

 27 T(2) 0.001 109.6 0.001 206.0 0.000 96.4 

 28 R(2) 0.000 111.9 0.001 45.4 0.000 0.0 

 29 2Q(1) 0.000 163.9 0.000 0.0 0.000 0.0 

 30 P(1) 0.005 25.2 0.001 183.5 -0.004 158.3 

 31 2SM(2) 0.000 0.0 0.000 147.8 0.000 0.0 

 32 M(3) 0.000 0.0 0.000 0.0 0.000 0.0 

 33 L(2) 0.002 58.8 0.003 159.4 0.001 100.6 

 34 2MK(3) 0.000 0.0 0.000 267.1 0.000 0.0 

 35 K(2) 0.004 113.1 0.001 168.0 -0.003 54.9 

 36 M(8) 0.001 191.4 0.000 277.9 -0.001 86.5 

 37 MS(4) 0.000 0.0 0.002 314.6 0.000 0.0 
- 73 -

Station: VEL_016 

Observation: Least Squares H.A. Beginning 3-22-1984 at Hour 0.10 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.420) Modeled( R= 0.357) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 55 DIR= 88 

 1 M(2) 0.058 72.9 0.104 84.5 0.046 11.6 

 2 S(2) 0.010 104.2 0.025 111.8 0.015 7.6 

 3 N(2) 0.014 40.7 0.032 24.0 0.018 -16.7 

 4 K(1) 0.027 350.9 0.007 219.0 -0.020 -131.9 

 5 M(4) 0.002 217.4 0.007 294.0 0.005 76.6 

 6 O(1) 0.028 278.6 0.010 292.9 -0.018 14.3 

 7 M(6) 0.003 343.7 0.000 325.9 -0.003 -17.8 

 8 MK(3) 0.001 255.4 0.000 159.3 -0.001 -96.1 

 9 S(4) 0.001 329.1 0.000 313.6 -0.001 -15.5 

 10 MN(4) 0.002 232.1 0.003 260.2 0.001 28.1 

 11 NU(2) 0.000 0.0 0.003 76.3 0.000 0.0 

 12 S(6) 0.000 326.9 0.000 206.7 0.000 0.0 

 13 MU(2) 0.000 0.0 0.001 225.3 0.000 0.0 

 14 2N(2) 0.003 46.7 0.001 71.0 -0.002 24.3 

 15 OO(1) 0.002 359.1 0.000 86.3 -0.002 87.2 

 16 LAMBDA(2) 0.000 0.0 0.001 73.5 0.000 0.0 

 17 S(1) 0.000 0.0 0.001 227.7 0.000 0.0 

 18 M(1) 0.002 255.8 0.001 181.0 -0.001 -74.8 

 19 J(1) 0.006 185.1 0.001 188.1 -0.005 3.0 

 20 MM 0.000 0.0 0.004 38.0 0.000 0.0 

 21 SSA 0.000 0.0 0.024 334.5 0.000 0.0 

 22 SA 0.000 0.0 0.058 252.5 0.000 0.0 

 23 MSF 0.000 0.0 0.003 240.7 0.000 0.0 

 24 MF 0.000 0.0 0.004 324.1 0.000 0.0 

 25 RHO(1) 0.001 157.7 0.001 127.8 0.000 -29.9 

 26 Q(1) 0.005 161.4 0.001 245.1 -0.004 83.7 

 27 T(2) 0.000 0.0 0.001 29.3 0.000 0.0 

 28 R(2) 0.000 0.0 0.001 187.9 0.000 0.0 

 29 2Q(1) 0.005 203.7 0.000 277.7 -0.005 74.0 

 30 P(1) 0.000 0.0 0.003 211.2 0.000 0.0 

 31 2SM(2) 0.001 206.6 0.000 51.2 -0.001 -155.4 

 32 M(3) 0.001 115.7 0.000 0.0 -0.001 -115.7 

 33 L(2) 0.003 49.5 0.004 112.0 0.001 62.5 

 34 2MK(3) 0.001 340.5 0.000 203.5 -0.001 -137.0 

 35 K(2) 0.000 0.0 0.001 91.7 0.000 0.0 

 36 M(8) 0.000 211.1 0.001 242.0 0.000 0.0 

 37 MS(4) 0.001 83.5 0.003 316.7 0.002 126.8 
- 74 -

Station: VEL_017 

Observation: Least Squares H.A. Beginning 4-17-1984 at Hour 23.00 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.638) Modeled( R= 0.230) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 77 DIR= 127 

 1 M(2) 0.077 75.4 0.140 107.1 0.063 31.7 

 2 S(2) 0.015 93.3 0.029 137.2 0.014 43.9 

 3 N(2) 0.016 57.3 0.057 77.5 0.041 20.2 

 4 K(1) 0.014 1.5 0.008 251.9 -0.006 109.6 

 5 M(4) 0.004 276.7 0.007 286.6 0.003 9.9 

 6 O(1) 0.025 266.1 0.012 13.5 -0.013 107.4 

 7 M(6) 0.003 10.4 0.001 76.6 -0.002 66.2 

 8 MK(3) 0.002 294.6 0.001 143.4 -0.001 -151.2 

 9 S(4) 0.001 87.3 0.000 34.8 -0.001 -52.5 

 10 MN(4) 0.003 191.3 0.004 249.2 0.001 57.9 

 11 NU(2) 0.000 0.0 0.004 175.7 0.000 0.0 

 12 S(6) 0.001 334.6 0.000 0.0 -0.001 25.4 

 13 MU(2) 0.000 0.0 0.002 269.9 0.000 0.0 

 14 2N(2) 0.007 22.0 0.001 188.1 -0.006 166.1 

 15 OO(1) 0.002 335.9 0.000 241.2 -0.002 -94.7 

 16 LAMBDA(2) 0.000 0.0 0.002 116.0 0.000 0.0 

 17 S(1) 0.000 0.0 0.011 97.6 0.000 0.0 

 18 M(1) 0.006 334.2 0.002 274.8 -0.004 -59.4 

 19 J(1) 0.007 234.0 0.001 71.6 -0.006 -162.4 

 20 MM 0.000 0.0 0.018 269.7 0.000 0.0 

 21 SSA 0.000 0.0 0.026 24.6 0.000 0.0 

 22 SA 0.000 0.0 0.245 248.5 0.000 0.0 

 23 MSF 0.000 0.0 0.003 190.9 0.000 0.0 

 24 MF 0.000 0.0 0.004 154.4 0.000 0.0 

 25 RHO(1) 0.008 198.3 0.003 26.4 -0.005 -171.9 

 26 Q(1) 0.003 305.7 0.006 163.7 0.003 -142.0 

 27 T(2) 0.000 0.0 0.003 153.2 0.000 0.0 

 28 R(2) 0.000 0.0 0.003 319.6 0.000 0.0 

 29 2Q(1) 0.005 21.7 0.001 315.3 -0.004 66.4 

 30 P(1) 0.000 0.0 0.008 110.6 0.000 0.0 

 31 2SM(2) 0.002 107.0 0.001 176.8 -0.001 69.8 

 32 M(3) 0.001 286.3 0.001 334.7 0.000 48.4 

 33 L(2) 0.003 252.5 0.001 299.7 -0.002 47.2 

 34 2MK(3) 0.004 338.6 0.001 297.9 -0.003 -40.7 

 35 K(2) 0.000 0.0 0.001 190.4 0.000 0.0 

 36 M(8) 0.002 123.4 0.000 0.0 -0.002 -123.4 

 37 MS(4) 0.002 57.4 0.002 329.6 0.000 87.8 
- 75 -

Station: VEL_018 

Observation: 29-Day H.A. Beginning 9-18-1984 at Hour 13.20 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.031) Modeled( R= 0.002) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 134 DIR= 134 

 1 M(2) 0.352 152.4 0.472 148.2 0.120 -4.2 

 2 S(2) 0.052 170.5 0.098 178.4 0.046 7.9 

 3 N(2) 0.081 126.9 0.106 119.8 0.025 -7.1 

 4 K(1) 0.029 319.1 0.027 289.5 -0.002 -29.6 

 5 M(4) 0.017 209.6 0.015 34.5 -0.002 -175.1 

 6 O(1) 0.012 280.2 0.023 288.4 0.011 8.2 

 7 M(6) 0.003 336.1 0.014 290.7 0.011 -45.4 

 8 MK(3) 0.000 0.0 0.005 211.0 0.000 0.0 

 9 S(4) 0.004 168.0 0.000 0.0 -0.004 -168.0 

 10 MN(4) 0.000 0.0 0.006 13.6 0.000 0.0 

 11 NU(2) 0.016 130.3 0.006 132.0 -0.010 1.7 

 12 S(6) 0.001 31.5 0.001 27.2 0.000 -4.3 

 13 MU(2) 0.000 0.0 0.021 281.7 0.000 0.0 

 14 2N(2) 0.011 101.5 0.003 229.1 -0.008 127.6 

 15 OO(1) 0.000 358.0 0.000 0.0 0.000 0.0 

 16 LAMBDA(2) 0.002 160.8 0.006 122.3 0.004 -38.5 

 17 S(1) 0.000 0.0 0.001 316.2 0.000 0.0 

 18 M(1) 0.001 299.6 0.000 0.0 -0.001 60.4 

 19 J(1) 0.001 338.4 0.001 73.8 0.000 95.4 

 20 MM 0.000 0.0 0.001 179.0 0.000 0.0 

 21 SSA 0.000 0.0 0.001 160.3 0.000 0.0 

 22 SA 0.000 0.0 0.001 47.0 0.000 0.0 

 23 MSF 0.000 0.0 0.001 287.1 0.000 0.0 

 24 MF 0.000 0.0 0.001 5.1 0.000 0.0 

 25 RHO(1) 0.000 263.5 0.000 0.0 0.000 0.0 

 26 Q(1) 0.002 260.9 0.003 294.6 0.001 33.7 

 27 T(2) 0.003 169.8 0.001 314.0 -0.002 144.2 

 28 R(2) 0.000 171.3 0.000 0.0 0.000 0.0 

 29 2Q(1) 0.000 241.6 0.000 0.0 0.000 0.0 

 30 P(1) 0.010 316.2 0.001 56.1 -0.009 99.9 

 31 2SM(2) 0.000 0.0 0.004 0.4 0.000 0.0 

 32 M(3) 0.000 0.0 0.002 115.5 0.000 0.0 

 33 L(2) 0.012 126.9 0.034 178.7 0.022 51.8 

 34 2MK(3) 0.000 0.0 0.006 215.7 0.000 0.0 

 35 K(2) 0.014 172.0 0.003 184.8 -0.011 12.8 

 36 M(8) 0.004 348.0 0.002 168.4 -0.002 -179.6 

 37 MS(4) 0.000 0.0 0.004 77.5 0.000 0.0 
- 76 -

Station: VEL_019 

Observation: 29-Day H.A. Beginning 9-18-1984 at Hour 14.40 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.007) Modeled( R= 0.002) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 159 DIR= 157 

 1 M(2) 0.642 156.1 0.736 155.5 0.094 -0.6 

 2 S(2) 0.103 174.6 0.155 184.1 0.052 9.5 

 3 N(2) 0.139 135.2 0.168 124.1 0.029 -11.1 

 4 K(1) 0.074 310.7 0.044 292.2 -0.030 -18.5 

 5 M(4) 0.027 73.2 0.038 69.4 0.011 -3.8 

 6 O(1) 0.039 286.3 0.039 293.4 0.000 7.1 

 7 M(6) 0.015 183.9 0.017 339.4 0.002 155.5 

 8 MK(3) 0.000 0.0 0.008 222.5 0.000 0.0 

 9 S(4) 0.002 53.6 0.001 156.6 -0.001 103.0 

 10 MN(4) 0.000 0.0 0.016 35.9 0.000 0.0 

 11 NU(2) 0.027 138.0 0.010 163.1 -0.017 25.1 

 12 S(6) 0.006 343.0 0.000 0.0 -0.006 17.0 

 13 MU(2) 0.000 0.0 0.029 296.8 0.000 0.0 

 14 2N(2) 0.018 114.4 0.004 219.2 -0.014 104.8 

 15 OO(1) 0.002 335.0 0.000 0.0 -0.002 25.0 

 16 LAMBDA(2) 0.004 164.7 0.009 119.1 0.005 -45.6 

 17 S(1) 0.000 0.0 0.000 0.0 0.000 0.0 

 18 M(1) 0.003 298.5 0.001 28.7 -0.002 90.2 

 19 J(1) 0.003 322.8 0.002 92.8 -0.001 130.0 

 20 MM 0.000 0.0 0.010 41.4 0.000 0.0 

 21 SSA 0.000 0.0 0.001 7.8 0.000 0.0 

 22 SA 0.000 0.0 0.004 267.8 0.000 0.0 

 23 MSF 0.000 0.0 0.008 44.1 0.000 0.0 

 24 MF 0.000 0.0 0.001 262.3 0.000 0.0 

 25 RHO(1) 0.001 275.8 0.000 0.0 -0.001 84.2 

 26 Q(1) 0.008 274.2 0.005 302.0 -0.003 27.8 

 27 T(2) 0.006 173.9 0.002 273.2 -0.004 99.3 

 28 R(2) 0.001 175.4 0.002 93.7 0.001 -81.7 

 29 2Q(1) 0.001 262.1 0.000 0.0 -0.001 97.9 

 30 P(1) 0.024 308.8 0.002 79.0 -0.022 130.2 

 31 2SM(2) 0.000 0.0 0.004 4.7 0.000 0.0 

 32 M(3) 0.000 0.0 0.003 141.7 0.000 0.0 

 33 L(2) 0.020 135.2 0.047 193.1 0.027 57.9 

 34 2MK(3) 0.000 0.0 0.009 230.9 0.000 0.0 

 35 K(2) 0.028 176.1 0.005 204.4 -0.023 28.3 

 36 M(8) 0.017 226.4 0.004 287.5 -0.013 61.1 

 37 MS(4) 0.000 0.0 0.012 104.4 0.000 0.0 
- 77 -

Station: VEL_020 

Observation: 15-Day H.A. Beginning 9-18-1984 at Hour 21.50 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( ) Modeled( R= 0.002) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 6 DIR= 12 

 1 M(2) 0.504 319.7 0.572 312.7 0.068 -7.0 

 2 S(2) 0.079 339.5 0.117 346.2 0.038 6.7 

 3 N(2) 0.098 309.1 0.125 288.0 0.027 -21.1 

 4 K(1) 0.040 131.3 0.029 98.6 -0.011 -32.7 

 5 M(4) 0.055 215.2 0.039 195.1 -0.016 -20.1 

 6 O(1) 0.027 72.1 0.026 97.1 -0.001 25.0 

 7 M(6) 0.030 53.5 0.035 52.8 0.005 -0.7 

 8 MK(3) 0.000 0.0 0.008 349.8 0.000 0.0 

 9 S(4) 0.005 191.4 0.001 276.5 -0.004 85.1 

 10 MN(4) 0.000 0.0 0.017 167.1 0.000 0.0 

 11 NU(2) 0.019 310.5 0.011 281.4 -0.008 -29.1 

 12 S(6) 0.004 347.7 0.001 181.5 -0.003 -166.2 

 13 MU(2) 0.000 0.0 0.032 77.4 0.000 0.0 

 14 2N(2) 0.013 298.5 0.003 40.2 -0.010 101.7 

 15 OO(1) 0.001 190.5 0.000 0.0 -0.001 169.5 

 16 LAMBDA(2) 0.004 328.9 0.007 288.6 0.003 -40.3 

 17 S(1) 0.000 0.0 0.001 144.4 0.000 0.0 

 18 M(1) 0.002 101.7 0.000 0.0 -0.002 -101.7 

 19 J(1) 0.002 160.9 0.001 236.7 -0.001 75.8 

 20 MM 0.000 0.0 0.010 216.2 0.000 0.0 

 21 SSA 0.000 0.0 0.001 118.8 0.000 0.0 

 22 SA 0.000 0.0 0.001 49.2 0.000 0.0 

 23 MSF 0.000 0.0 0.010 206.9 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.001 46.6 0.000 0.0 -0.001 -46.6 

 26 Q(1) 0.005 42.5 0.004 107.1 -0.001 64.6 

 27 T(2) 0.005 339.5 0.000 0.0 -0.005 20.5 

 28 R(2) 0.001 339.5 0.002 77.2 0.001 97.7 

 29 2Q(1) 0.001 12.8 0.000 0.0 -0.001 -12.8 

 30 P(1) 0.013 131.3 0.001 218.6 -0.012 87.3 

 31 2SM(2) 0.000 0.0 0.004 162.4 0.000 0.0 

 32 M(3) 0.000 0.0 0.004 257.8 0.000 0.0 

 33 L(2) 0.014 330.3 0.049 334.0 0.035 3.7 

 34 2MK(3) 0.000 0.0 0.008 350.2 0.000 0.0 

 35 K(2) 0.021 339.5 0.005 330.6 -0.016 -8.9 

 36 M(8) 0.004 60.6 0.008 321.5 0.004 99.1 

 37 MS(4) 0.000 0.0 0.015 229.0 0.000 0.0 
- 78 -

Station: VEL_021 

Observation: 29-Day H.A. Beginning 9-18-1984 at Hour 16.90 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.023) Modeled( R= 0.008) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 136 DIR= 142 

 1 M(2) 0.353 171.4 0.360 156.6 0.007 -14.8 

 2 S(2) 0.046 177.6 0.078 190.5 0.032 12.9 

 3 N(2) 0.096 146.6 0.086 129.9 -0.010 -16.7 

 4 K(1) 0.032 339.1 0.021 294.4 -0.011 -44.7 

 5 M(4) 0.026 71.3 0.031 58.6 0.005 -12.7 

 6 O(1) 0.011 280.4 0.018 293.0 0.007 12.6 

 7 M(6) 0.002 336.6 0.016 282.6 0.014 -54.0 

 8 MK(3) 0.000 0.0 0.006 196.8 0.000 0.0 

 9 S(4) 0.008 84.3 0.001 153.7 -0.007 69.4 

 10 MN(4) 0.000 0.0 0.012 33.3 0.000 0.0 

 11 NU(2) 0.019 149.9 0.003 76.8 -0.016 -73.1 

 12 S(6) 0.002 285.9 0.001 45.5 -0.001 119.6 

 13 MU(2) 0.000 0.0 0.014 274.2 0.000 0.0 

 14 2N(2) 0.013 121.7 0.004 253.6 -0.009 131.9 

 15 OO(1) 0.000 37.8 0.000 0.0 0.000 0.0 

 16 LAMBDA(2) 0.002 174.3 0.007 150.9 0.005 -23.4 

 17 S(1) 0.000 0.0 0.001 338.4 0.000 0.0 

 18 M(1) 0.001 309.7 0.000 0.0 -0.001 50.3 

 19 J(1) 0.001 8.2 0.001 74.1 0.000 65.9 

 20 MM 0.000 0.0 0.009 35.9 0.000 0.0 

 21 SSA 0.000 0.0 0.001 315.8 0.000 0.0 

 22 SA 0.000 0.0 0.005 244.8 0.000 0.0 

 23 MSF 0.000 0.0 0.008 31.9 0.000 0.0 

 24 MF 0.000 0.0 0.001 240.1 0.000 0.0 

 25 RHO(1) 0.000 255.2 0.000 0.0 0.000 0.0 

 26 Q(1) 0.002 251.3 0.002 304.3 0.000 53.0 

 27 T(2) 0.003 177.4 0.001 108.0 -0.002 -69.4 

 28 R(2) 0.000 177.8 0.003 213.8 0.000 0.0 

 29 2Q(1) 0.000 222.2 0.000 0.0 0.000 0.0 

 30 P(1) 0.011 334.7 0.001 72.8 -0.010 98.1 

 31 2SM(2) 0.000 0.0 0.002 23.0 0.000 0.0 

 32 M(3) 0.000 0.0 0.003 102.9 0.000 0.0 

 33 L(2) 0.014 146.6 0.024 168.8 0.010 22.2 

 34 2MK(3) 0.000 0.0 0.006 197.0 0.000 0.0 

 35 K(2) 0.013 178.1 0.002 129.9 -0.011 -48.2 

 36 M(8) 0.002 356.2 0.003 221.4 0.001 -134.8 

 37 MS(4) 0.000 0.0 0.011 95.4 0.000 0.0 
- 79 -

Station: VEL_022 

Observation: 29-Day H.A. Beginning 5- 9-1984 at Hour 17.70 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.015) Modeled( R= 0.005) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 152 DIR= 140 

 1 M(2) 0.655 174.3 0.491 160.8 -0.164 -13.5 

 2 S(2) 0.124 217.2 0.102 189.0 -0.022 -28.2 

 3 N(2) 0.136 162.6 0.109 129.5 -0.027 -33.1 

 4 K(1) 0.044 324.5 0.026 301.5 -0.018 -23.0 

 5 M(4) 0.090 66.6 0.024 48.9 -0.066 -17.7 

 6 O(1) 0.043 318.0 0.022 301.0 -0.021 -17.0 

 7 M(6) 0.012 180.9 0.021 315.9 0.009 135.0 

 8 MK(3) 0.000 0.0 0.004 223.8 0.000 0.0 

 9 S(4) 0.010 124.0 0.001 188.1 -0.009 64.1 

 10 MN(4) 0.000 0.0 0.005 29.9 0.000 0.0 

 11 NU(2) 0.026 164.1 0.010 166.5 -0.016 2.4 

 12 S(6) 0.001 126.4 0.000 0.0 -0.001 -126.4 

 13 MU(2) 0.000 0.0 0.024 300.4 0.000 0.0 

 14 2N(2) 0.018 150.8 0.004 196.8 -0.014 46.0 

 15 OO(1) 0.002 331.0 0.000 0.0 -0.002 29.0 

 16 LAMBDA(2) 0.005 194.2 0.008 101.9 0.003 -92.3 

 17 S(1) 0.000 0.0 0.001 249.9 0.000 0.0 

 18 M(1) 0.003 321.2 0.000 162.2 -0.003 -159.0 

 19 J(1) 0.003 327.7 0.001 38.8 -0.002 71.1 

 20 MM 0.000 0.0 0.007 208.6 0.000 0.0 

 21 SSA 0.000 0.0 0.002 190.2 0.000 0.0 

 22 SA 0.000 0.0 0.000 0.0 0.000 0.0 

 23 MSF 0.000 0.0 0.006 224.3 0.000 0.0 

 24 MF 0.000 0.0 0.001 41.9 0.000 0.0 

 25 RHO(1) 0.002 315.2 0.001 130.7 -0.001 175.5 

 26 Q(1) 0.008 314.7 0.004 299.2 -0.004 -15.5 

 27 T(2) 0.007 215.5 0.003 284.9 -0.004 69.4 

 28 R(2) 0.001 218.9 0.004 61.8 0.003 -157.1 

 29 2Q(1) 0.001 311.5 0.000 0.0 -0.001 48.5 

 30 P(1) 0.014 324.0 0.001 24.4 -0.013 60.4 

 31 2SM(2) 0.000 0.0 0.004 344.3 0.000 0.0 

 32 M(3) 0.000 0.0 0.003 120.0 0.000 0.0 

 33 L(2) 0.019 162.6 0.036 196.0 0.017 33.4 

 34 2MK(3) 0.000 0.0 0.005 231.1 0.000 0.0 

 35 K(2) 0.034 220.7 0.005 204.4 -0.029 -16.3 

 36 M(8) 0.011 30.9 0.006 216.3 -0.005 174.6 

 37 MS(4) 0.000 0.0 0.004 91.4 0.000 0.0 
- 80 -

Station: VEL_023 

Observation: Least Squares H.A. Beginning 3-22-1984 at Hour 0.10 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.011) Modeled( R= 0.003) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 166 DIR= 167 

 1 M(2) 0.665 168.8 0.649 164.6 -0.016 -4.2 

 2 S(2) 0.140 184.4 0.133 194.1 -0.007 9.7 

 3 N(2) 0.142 137.4 0.145 135.2 0.003 -2.2 

 4 K(1) 0.047 296.4 0.039 299.8 -0.008 3.4 

 5 M(4) 0.052 95.1 0.058 89.7 0.006 -5.4 

 6 O(1) 0.038 295.0 0.037 300.9 -0.001 5.9 

 7 M(6) 0.008 41.8 0.019 351.0 0.011 50.8 

 8 MK(3) 0.015 221.1 0.011 227.9 -0.004 6.8 

 9 S(4) 0.006 115.7 0.001 165.3 -0.005 49.6 

 10 MN(4) 0.025 63.1 0.022 56.4 -0.003 -6.7 

 11 NU(2) 0.000 0.0 0.010 159.4 0.000 0.0 

 12 S(6) 0.005 305.4 0.000 0.0 -0.005 54.6 

 13 MU(2) 0.000 0.0 0.028 300.4 0.000 0.0 

 14 2N(2) 0.006 66.9 0.003 233.0 -0.003 166.1 

 15 OO(1) 0.005 22.8 0.000 0.0 -0.005 -22.8 

 16 LAMBDA(2) 0.000 0.0 0.007 121.1 0.000 0.0 

 17 S(1) 0.000 0.0 0.002 92.7 0.000 0.0 

 18 M(1) 0.008 279.1 0.001 326.6 -0.007 47.5 

 19 J(1) 0.010 138.2 0.002 106.4 -0.008 -31.8 

 20 MM 0.000 0.0 0.012 21.3 0.000 0.0 

 21 SSA 0.000 0.0 0.002 59.8 0.000 0.0 

 22 SA 0.000 0.0 0.004 28.3 0.000 0.0 

 23 MSF 0.000 0.0 0.011 17.0 0.000 0.0 

 24 MF 0.000 0.0 0.002 170.6 0.000 0.0 

 25 RHO(1) 0.006 193.5 0.001 256.8 -0.005 63.3 

 26 Q(1) 0.011 258.8 0.005 321.6 -0.006 62.8 

 27 T(2) 0.000 0.0 0.002 245.0 0.000 0.0 

 28 R(2) 0.000 0.0 0.001 27.8 0.000 0.0 

 29 2Q(1) 0.006 165.0 0.000 0.0 -0.006 -165.0 

 30 P(1) 0.000 0.0 0.003 102.3 0.000 0.0 

 31 2SM(2) 0.013 217.5 0.005 5.1 -0.008 147.6 

 32 M(3) 0.005 204.4 0.004 153.2 -0.001 -51.2 

 33 L(2) 0.049 251.0 0.045 195.1 -0.004 -55.9 

 34 2MK(3) 0.013 258.8 0.013 232.9 0.000 -25.9 

 35 K(2) 0.000 0.0 0.005 205.2 0.000 0.0 

 36 M(8) 0.009 296.7 0.003 319.5 -0.006 22.8 

 37 MS(4) 0.018 109.2 0.019 121.1 0.001 11.9 
- 81 -

Station: VEL_024 

Observation: 29-Day H.A. Beginning 5- 9-1984 at Hour 15.70 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.056) Modeled( R= 0.003) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 165 DIR= 178 

 1 M(2) 0.341 155.9 0.479 150.2 0.138 -5.7 

 2 S(2) 0.050 208.7 0.098 182.0 0.048 -26.7 

 3 N(2) 0.090 164.8 0.106 123.1 0.016 -41.7 

 4 K(1) 0.019 306.5 0.026 291.0 0.007 -15.5 

 5 M(4) 0.040 123.6 0.039 54.8 -0.001 -68.8 

 6 O(1) 0.012 289.2 0.023 290.4 0.011 1.2 

 7 M(6) 0.028 77.6 0.023 278.3 -0.005 159.3 

 8 MK(3) 0.000 0.0 0.008 196.9 0.000 0.0 

 9 S(4) 0.012 62.1 0.001 113.7 -0.011 51.6 

 10 MN(4) 0.000 0.0 0.018 23.3 0.000 0.0 

 11 NU(2) 0.018 163.6 0.008 130.5 -0.010 -33.1 

 12 S(6) 0.003 124.3 0.001 26.4 -0.002 -97.9 

 13 MU(2) 0.000 0.0 0.024 278.2 0.000 0.0 

 14 2N(2) 0.012 173.7 0.003 227.9 -0.009 54.2 

 15 OO(1) 0.001 323.8 0.000 0.0 -0.001 36.2 

 16 LAMBDA(2) 0.002 180.4 0.006 112.4 0.004 -68.0 

 17 S(1) 0.000 0.0 0.001 0.3 0.000 0.0 

 18 M(1) 0.001 297.8 0.000 341.7 -0.001 43.9 

 19 J(1) 0.001 315.1 0.002 66.8 0.001 111.7 

 20 MM 0.000 0.0 0.006 35.7 0.000 0.0 

 21 SSA 0.000 0.0 0.001 300.7 0.000 0.0 

 22 SA 0.000 0.0 0.003 238.5 0.000 0.0 

 23 MSF 0.000 0.0 0.006 20.7 0.000 0.0 

 24 MF 0.000 0.0 0.001 252.3 0.000 0.0 

 25 RHO(1) 0.000 281.7 0.000 0.0 0.000 0.0 

 26 Q(1) 0.002 280.6 0.003 304.0 0.001 23.4 

 27 T(2) 0.003 206.6 0.001 221.9 -0.002 15.3 

 28 R(2) 0.000 210.8 0.001 323.9 0.000 0.0 

 29 2Q(1) 0.000 272.0 0.000 0.0 0.000 0.0 

 30 P(1) 0.006 305.2 0.001 61.1 -0.005 115.9 

 31 2SM(2) 0.000 0.0 0.003 347.5 0.000 0.0 

 32 M(3) 0.000 0.0 0.003 110.0 0.000 0.0 

 33 L(2) 0.013 164.8 0.038 174.6 0.025 9.8 

 34 2MK(3) 0.000 0.0 0.008 202.4 0.000 0.0 

 35 K(2) 0.013 212.9 0.004 172.9 -0.009 -40.0 

 36 M(8) 0.019 325.5 0.005 165.6 -0.014 -159.9 

 37 MS(4) 0.000 0.0 0.015 85.3 0.000 0.0 
- 82 -

Station: VEL_025 

Observation: 29-Day H.A. Beginning 9-18-1984 at Hour 20.40 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.060) Modeled( R= 0.003) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 1 DIR= 16 

 1 M(2) 0.040 105.1 0.394 325.3 0.354 139.8 

 2 S(2) 0.009 154.9 0.082 358.0 0.073 156.9 

 3 N(2) 0.014 83.2 0.088 299.0 0.074 144.2 

 4 K(1) 0.016 47.1 0.021 110.0 0.005 62.9 

 5 M(4) 0.109 137.0 0.039 218.4 -0.070 81.4 

 6 O(1) 0.010 33.8 0.018 106.5 0.008 72.7 

 7 M(6) 0.010 300.9 0.025 73.2 0.015 132.3 

 8 MK(3) 0.000 0.0 0.007 3.6 0.000 0.0 

 9 S(4) 0.012 165.6 0.001 287.1 -0.011 121.5 

 10 MN(4) 0.000 0.0 0.018 190.6 0.000 0.0 

 11 NU(2) 0.003 86.1 0.007 298.5 0.004 147.6 

 12 S(6) 0.004 90.8 0.001 198.2 -0.003 107.4 

 13 MU(2) 0.000 0.0 0.020 89.7 0.000 0.0 

 14 2N(2) 0.002 61.2 0.002 46.8 0.000 -14.4 

 15 OO(1) 0.000 60.4 0.000 0.0 0.000 0.0 

 16 LAMBDA(2) 0.000 128.2 0.005 292.4 0.000 0.0 

 17 S(1) 0.000 0.0 0.002 171.0 0.000 0.0 

 18 M(1) 0.001 40.4 0.000 0.0 -0.001 -40.4 

 19 J(1) 0.001 53.7 0.001 247.1 0.000 166.6 

 20 MM 0.000 0.0 0.006 222.3 0.000 0.0 

 21 SSA 0.000 0.0 0.001 165.4 0.000 0.0 

 22 SA 0.000 0.0 0.001 135.5 0.000 0.0 

 23 MSF 0.000 0.0 0.005 202.9 0.000 0.0 

 24 MF 0.000 0.0 0.001 79.7 0.000 0.0 

 25 RHO(1) 0.000 28.1 0.000 0.0 0.000 0.0 

 26 Q(1) 0.002 27.2 0.003 117.5 0.001 90.3 

 27 T(2) 0.001 152.9 0.001 345.1 0.000 167.8 

 28 R(2) 0.000 156.9 0.001 102.7 0.000 0.0 

 29 2Q(1) 0.000 20.6 0.000 0.0 0.000 0.0 

 30 P(1) 0.005 46.1 0.001 211.9 -0.004 165.8 

 31 2SM(2) 0.000 0.0 0.002 169.8 0.000 0.0 

 32 M(3) 0.000 0.0 0.003 270.0 0.000 0.0 

 33 L(2) 0.002 83.2 0.030 345.3 0.028 97.9 

 34 2MK(3) 0.000 0.0 0.007 5.0 0.000 0.0 

 35 K(2) 0.002 158.9 0.003 340.3 0.001 178.6 

 36 M(8) 0.013 252.0 0.007 332.5 -0.006 80.5 

 37 MS(4) 0.000 0.0 0.016 250.0 0.000 0.0 
- 83 -

Station: VEL_033 

Observation: Least Squares H.A. Beginning 6-15-1984 at Hour 19.00 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.012) Modeled( R= 0.003) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 144 DIR= 142 

 1 M(2) 0.949 218.3 0.720 211.2 -0.229 -7.1 

 2 S(2) 0.122 261.6 0.131 236.4 0.009 -25.2 

 3 N(2) 0.191 213.5 0.151 174.1 -0.040 -39.4 

 4 K(1) 0.100 1.1 0.050 323.9 -0.050 37.2 

 5 M(4) 0.092 178.8 0.091 149.9 -0.001 -28.9 

 6 O(1) 0.079 332.9 0.044 320.1 -0.035 -12.8 

 7 M(6) 0.040 274.9 0.017 79.7 -0.023 164.8 

 8 MK(3) 0.026 317.3 0.010 276.9 -0.016 -40.4 

 9 S(4) 0.005 53.3 0.002 270.2 -0.003 143.1 

 10 MN(4) 0.039 174.3 0.033 105.5 -0.006 -68.8 

 11 NU(2) 0.000 0.0 0.016 236.4 0.000 0.0 

 12 S(6) 0.003 122.5 0.001 128.1 -0.002 5.6 

 13 MU(2) 0.000 0.0 0.047 15.6 0.000 0.0 

 14 2N(2) 0.027 135.5 0.007 322.3 -0.020 173.2 

 15 OO(1) 0.003 335.0 0.001 345.8 -0.002 10.8 

 16 LAMBDA(2) 0.000 0.0 0.011 211.5 0.000 0.0 

 17 S(1) 0.000 0.0 0.003 179.0 0.000 0.0 

 18 M(1) 0.003 339.0 0.001 177.5 -0.002 -161.5 

 19 J(1) 0.006 197.6 0.006 185.5 0.000 -12.1 

 20 MM 0.000 0.0 0.012 40.3 0.000 0.0 

 21 SSA 0.000 0.0 0.011 61.7 0.000 0.0 

 22 SA 0.000 0.0 0.007 41.4 0.000 0.0 

 23 MSF 0.000 0.0 0.009 70.8 0.000 0.0 

 24 MF 0.000 0.0 0.005 223.3 0.000 0.0 

 25 RHO(1) 0.009 244.9 0.002 326.0 -0.007 81.1 

 26 Q(1) 0.009 17.4 0.002 332.8 -0.007 44.6 

 27 T(2) 0.000 0.0 0.003 112.6 0.000 0.0 

 28 R(2) 0.000 0.0 0.001 118.4 0.000 0.0 

 29 2Q(1) 0.005 137.3 0.003 303.7 -0.002 166.4 

 30 P(1) 0.000 0.0 0.005 179.3 0.000 0.0 

 31 2SM(2) 0.006 146.0 0.009 86.8 0.003 -59.2 

 32 M(3) 0.006 305.6 0.004 216.0 -0.002 -89.6 

 33 L(2) 0.104 239.6 0.072 262.9 -0.032 23.3 

 34 2MK(3) 0.023 300.0 0.011 280.1 -0.012 -19.9 

 35 K(2) 0.000 0.0 0.007 270.0 0.000 0.0 

 36 M(8) 0.013 226.8 0.012 74.9 -0.001 -151.9 

 37 MS(4) 0.013 270.3 0.029 184.5 0.016 -85.8 
- 84 -

Station: VEL_047 

Observation: 29-Day H.A. Beginning 6-14-1984 at Hour 16.70 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.001) Modeled( R= 0.000) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 63 DIR= 59 

 1 M(2) 1.039 103.8 0.699 92.3 -0.340 -11.5 

 2 S(2) 0.112 136.6 0.112 135.6 0.000 -1.0 

 3 N(2) 0.176 90.6 0.124 69.3 -0.052 -21.3 

 4 K(1) 0.065 191.8 0.034 174.1 -0.031 -17.7 

 5 M(4) 0.143 184.8 0.068 166.0 -0.075 -18.8 

 6 O(1) 0.045 188.6 0.032 170.1 -0.013 -18.5 

 7 M(6) 0.078 152.6 0.059 108.0 -0.019 -44.6 

 8 MK(3) 0.000 0.0 0.016 229.5 0.000 0.0 

 9 S(4) 0.003 46.1 0.002 270.1 -0.001 136.0 

 10 MN(4) 0.000 0.0 0.029 144.4 0.000 0.0 

 11 NU(2) 0.034 92.4 0.027 68.2 -0.007 -24.2 

 12 S(6) 0.001 236.7 0.000 0.0 -0.001 123.3 

 13 MU(2) 0.000 0.0 0.069 219.3 0.000 0.0 

 14 2N(2) 0.023 77.4 0.005 173.0 -0.018 95.6 

 15 OO(1) 0.002 195.1 0.000 0.0 -0.002 164.9 

 16 LAMBDA(2) 0.007 119.0 0.013 71.5 0.006 -47.5 

 17 S(1) 0.000 0.0 0.002 333.0 0.000 0.0 

 18 M(1) 0.003 190.2 0.001 219.6 -0.002 29.4 

 19 J(1) 0.004 193.4 0.003 338.9 -0.001 145.5 

 20 MM 0.000 0.0 0.005 205.6 0.000 0.0 

 21 SSA 0.000 0.0 0.006 243.3 0.000 0.0 

 22 SA 0.000 0.0 0.012 174.4 0.000 0.0 

 23 MSF 0.000 0.0 0.004 224.7 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.002 187.1 0.001 117.5 -0.001 -69.6 

 26 Q(1) 0.009 186.9 0.004 202.3 -0.005 15.4 

 27 T(2) 0.007 135.3 0.001 219.0 -0.006 83.7 

 28 R(2) 0.001 137.9 0.003 206.5 0.002 68.6 

 29 2Q(1) 0.001 185.3 0.001 115.4 0.000 -69.9 

 30 P(1) 0.022 191.6 0.004 323.7 -0.018 132.1 

 31 2SM(2) 0.000 0.0 0.007 316.0 0.000 0.0 

 32 M(3) 0.000 0.0 0.008 127.4 0.000 0.0 

 33 L(2) 0.025 90.6 0.106 120.5 0.081 29.9 

 34 2MK(3) 0.000 0.0 0.018 224.4 0.000 0.0 

 35 K(2) 0.031 139.3 0.012 122.8 -0.019 -16.5 

 36 M(8) 0.015 197.8 0.019 159.5 0.004 -38.3 

 37 MS(4) 0.000 0.0 0.028 208.8 0.000 0.0 
- 85 -

Station: VEL_051 

Observation: Least Squares H.A. Beginning 5- 8-1984 at Hour 20.60 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.005) Modeled( R= 0.000) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 92 DIR= 91 

 1 M(2) 0.935 120.1 0.744 106.3 -0.191 -13.8 

 2 S(2) 0.074 160.0 0.120 153.3 0.046 -6.7 

 3 N(2) 0.108 98.9 0.131 84.8 0.023 -14.1 

 4 K(1) 0.073 198.8 0.033 178.6 -0.040 -20.2 

 5 M(4) 0.150 238.0 0.093 217.2 -0.057 -20.8 

 6 O(1) 0.045 193.2 0.030 174.6 -0.015 -18.6 

 7 M(6) 0.095 218.8 0.078 178.8 -0.017 -40.0 

 8 MK(3) 0.050 277.2 0.019 254.1 -0.031 -23.1 

 9 S(4) 0.007 11.2 0.003 340.6 -0.004 30.6 

 10 MN(4) 0.050 237.3 0.037 200.1 -0.013 -37.2 

 11 NU(2) 0.000 0.0 0.031 79.4 0.000 0.0 

 12 S(6) 0.005 82.7 0.000 0.0 -0.005 -82.7 

 13 MU(2) 0.000 0.0 0.076 230.6 0.000 0.0 

 14 2N(2) 0.053 80.1 0.006 191.4 -0.047 111.3 

 15 OO(1) 0.003 13.8 0.000 0.0 -0.003 -13.8 

 16 LAMBDA(2) 0.000 0.0 0.014 86.4 0.000 0.0 

 17 S(1) 0.000 0.0 0.001 120.3 0.000 0.0 

 18 M(1) 0.002 256.0 0.001 209.2 -0.001 -46.8 

 19 J(1) 0.004 122.2 0.004 344.2 0.000 138.0 

 20 MM 0.000 0.0 0.008 205.0 0.000 0.0 

 21 SSA 0.000 0.0 0.010 241.9 0.000 0.0 

 22 SA 0.000 0.0 0.018 169.0 0.000 0.0 

 23 MSF 0.000 0.0 0.008 220.2 0.000 0.0 

 24 MF 0.000 0.0 0.001 355.6 0.000 0.0 

 25 RHO(1) 0.014 319.3 0.000 0.0 -0.014 40.7 

 26 Q(1) 0.019 296.2 0.004 214.0 -0.015 -82.2 

 27 T(2) 0.000 0.0 0.002 273.3 0.000 0.0 

 28 R(2) 0.000 0.0 0.003 232.5 0.000 0.0 

 29 2Q(1) 0.004 43.1 0.000 0.0 -0.004 -43.1 

 30 P(1) 0.000 0.0 0.003 326.7 0.000 0.0 

 31 2SM(2) 0.010 328.1 0.007 334.4 -0.003 6.3 

 32 M(3) 0.005 200.4 0.011 152.2 0.006 -48.2 

 33 L(2) 0.097 136.6 0.119 132.6 0.022 -4.0 

 34 2MK(3) 0.044 246.5 0.021 245.4 -0.023 -1.1 

 35 K(2) 0.000 0.0 0.014 134.8 0.000 0.0 

 36 M(8) 0.057 314.9 0.035 257.7 -0.022 -57.2 

 37 MS(4) 0.027 288.0 0.035 265.5 0.008 -22.5 
- 86 -

Station: VEL_052 

Observation: 15-Day H.A. Beginning 3-22-1984 at Hour 0.10 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( ) Modeled( R= 0.001) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 36 DIR= 35 

 1 M(2) 0.699 128.3 0.257 109.4 -0.442 -18.9 

 2 S(2) 0.092 156.4 0.042 157.5 -0.050 1.1 

 3 N(2) 0.136 113.3 0.045 89.2 -0.091 -24.1 

 4 K(1) 0.056 232.7 0.010 186.9 -0.046 -45.8 

 5 M(4) 0.140 269.2 0.060 249.9 -0.080 -19.3 

 6 O(1) 0.024 179.1 0.009 181.1 -0.015 2.0 

 7 M(6) 0.051 272.3 0.027 191.8 -0.024 -80.5 

 8 MK(3) 0.000 0.0 0.008 274.2 0.000 0.0 

 9 S(4) 0.038 305.4 0.001 22.2 -0.037 76.8 

 10 MN(4) 0.000 0.0 0.023 228.7 0.000 0.0 

 11 NU(2) 0.026 115.3 0.011 78.7 -0.015 -36.6 

 12 S(6) 0.018 6.4 0.000 0.0 -0.018 -6.4 

 13 MU(2) 0.000 0.0 0.027 231.5 0.000 0.0 

 14 2N(2) 0.018 98.3 0.002 192.9 -0.016 94.6 

 15 OO(1) 0.001 286.3 0.000 0.0 -0.001 73.7 

 16 LAMBDA(2) 0.005 141.3 0.005 88.9 0.000 -52.4 

 17 S(1) 0.000 0.0 0.001 305.5 0.000 0.0 

 18 M(1) 0.002 205.9 0.000 252.0 -0.002 46.1 

 19 J(1) 0.002 259.5 0.001 345.3 -0.001 85.8 

 20 MM 0.000 0.0 0.001 169.1 0.000 0.0 

 21 SSA 0.000 0.0 0.005 236.7 0.000 0.0 

 22 SA 0.000 0.0 0.012 169.6 0.000 0.0 

 23 MSF 0.000 0.0 0.001 228.4 0.000 0.0 

 24 MF 0.000 0.0 0.000 0.0 0.000 0.0 

 25 RHO(1) 0.001 156.1 0.000 0.0 -0.001 -156.1 

 26 Q(1) 0.005 152.3 0.001 216.4 -0.004 64.1 

 27 T(2) 0.005 156.4 0.001 244.4 -0.004 88.0 

 28 R(2) 0.001 156.4 0.002 217.1 0.001 60.7 

 29 2Q(1) 0.001 125.5 0.000 0.0 -0.001 -125.5 

 30 P(1) 0.019 232.7 0.001 322.3 -0.018 89.6 

 31 2SM(2) 0.000 0.0 0.003 337.3 0.000 0.0 

 32 M(3) 0.000 0.0 0.004 166.3 0.000 0.0 

 33 L(2) 0.020 143.4 0.042 133.2 0.022 -10.2 

 34 2MK(3) 0.000 0.0 0.008 261.8 0.000 0.0 

 35 K(2) 0.025 156.4 0.005 136.7 -0.020 -19.7 

 36 M(8) 0.023 17.5 0.011 307.4 -0.012 70.1 

 37 MS(4) 0.000 0.0 0.022 297.1 0.000 0.0 
- 87 -

Station: VEL_154 

Observation: Least Squares H.A. Beginning 6-20-1984 at Hour 21.70 

Model: Least Squares H.A. Beginning 3- 1-1984 at Hour 5.00 

amplitudes are in m/s, and Phase is in degrees (GMT) 

----------------------------------------------------------------------------------- 

 Observed( R= 0.003) Modeled( R= 0.001) Difference 

 N Constituent Amplitude Epoch Amplitude Epoch Amplitude Epoch 

----------------------------------------------------------------------------------- 

CURRENT ALONG PCD DIR= 84 DIR= 79 

 1 M(2) 0.707 332.5 0.541 321.8 -0.166 -10.7 

 2 S(2) 0.066 32.2 0.096 353.3 0.030 38.9 

 3 N(2) 0.134 326.5 0.108 288.9 -0.026 -37.6 

 4 K(1) 0.263 70.9 0.118 40.9 -0.145 -30.0 

 5 M(4) 0.065 303.7 0.063 346.0 -0.002 42.3 

 6 O(1) 0.196 60.2 0.106 51.0 -0.090 -9.2 

 7 M(6) 0.072 200.9 0.051 188.3 -0.021 -12.6 

 8 MK(3) 0.035 99.1 0.035 67.3 0.000 -31.8 

 9 S(4) 0.006 358.3 0.001 84.4 -0.005 86.1 

 10 MN(4) 0.043 301.8 0.030 311.3 -0.013 9.5 

 11 NU(2) 0.000 0.0 0.009 356.7 0.000 0.0 

 12 S(6) 0.003 97.4 0.001 281.2 -0.002 176.2 

 13 MU(2) 0.000 0.0 0.064 103.7 0.000 0.0 

 14 2N(2) 0.001 303.5 0.025 28.0 0.024 84.5 

 15 OO(1) 0.015 49.5 0.006 63.2 -0.009 13.7 

 16 LAMBDA(2) 0.000 0.0 0.012 191.8 0.000 0.0 

 17 S(1) 0.000 0.0 0.015 246.2 0.000 0.0 

 18 M(1) 0.010 115.7 0.000 265.9 -0.010 150.2 

 19 J(1) 0.010 287.5 0.010 285.5 0.000 -2.0 

 20 MM 0.000 0.0 0.008 218.9 0.000 0.0 

 21 SSA 0.000 0.0 0.009 125.4 0.000 0.0 

 22 SA 0.000 0.0 0.067 104.2 0.000 0.0 

 23 MSF 0.000 0.0 0.010 195.6 0.000 0.0 

 24 MF 0.000 0.0 0.005 191.9 0.000 0.0 

 25 RHO(1) 0.029 64.2 0.012 1.9 -0.017 -62.3 

 26 Q(1) 0.036 15.7 0.015 47.2 -0.021 31.5 

 27 T(2) 0.000 0.0 0.018 136.3 0.000 0.0 

 28 R(2) 0.000 0.0 0.005 122.6 0.000 0.0 

 29 2Q(1) 0.015 261.5 0.007 344.8 -0.008 83.3 

 30 P(1) 0.000 0.0 0.009 287.0 0.000 0.0 

 31 2SM(2) 0.007 164.5 0.007 158.8 0.000 -5.7 

 32 M(3) 0.031 2.5 0.016 345.3 -0.015 17.2 

 33 L(2) 0.099 346.2 0.092 8.6 -0.007 22.4 

 34 2MK(3) 0.049 70.4 0.033 76.6 -0.016 6.2 

 35 K(2) 0.000 0.0 0.009 138.6 0.000 0.0 

 36 M(8) 0.013 188.3 0.016 184.7 0.003 -3.6 

 37 MS(4) 0.027 330.0 0.027 28.9 0.000 58.9 
- 88 -
- 89 -

APPENDIX E. Skill Assessment Scores of Current Speed: Astronomical Tide 

and Hindcast Simulations 

Station: VEL_002 

Observed data time period from: / 4/24/1984 to /12/ 2/1984 with gaps of 68.69 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.545 

u 87600 0.667 

U-u 26 cm/s 24h 87600 -0.122 0.231 0.197 3.9 75.3 0.0 3.1 0.0 0.89 

AFC-afc 26 cm/s 24h 577 -0.070 0.088 0.054 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 705 -0.315 0.331 0.102 1.7 37.3 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 577 -0.184 0.307 0.246 0.0 88.6 0.0 0.0 0.0 

TEC-tec 0.50h 25h 705 -0.343 0.558 0.440 0.7 48.8 1.0 12.6 37.2 

TSF-tsf 0.25h 25h 573 -0.608 0.735 0.413 18.0 37.0 0.3 160.2 0.0 

TEF-tef 0.25h 25h 575 -0.261 0.347 0.228 0.0 83.8 0.0 0.0 0.0 

TSE-tse 0.25h 25h 680 0.287 0.405 0.286 0.0 81.2 1.8 0.0 25.0 

TEE-tee 0.25h 25h 680 0.159 0.289 0.241 0.0 92.5 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 36732 0.575 

u 36732 0.601 

U-u 26 cm/s 24h 36732 -0.026 0.478 0.477 16.4 41.0 15.7 5.4 3.6 0.41 

TSF-tsf 0.25h 25h 2 1.707 1.754 0.572 0.0 0.0 100.0 0.0 0.0 

TEF-tef 0.25h 25h 2 -0.249 0.817 1.101 50.0 0.0 0.0 0.0 0.0 

TSE-tse 0.25h 25h 50 0.123 0.864 0.864 2.0 54.0 10.0 0.0 0.0 

TEE-tee 0.25h 25h 51 0.224 0.886 0.866 2.0 60.8 13.7 0.0 0.0 

Station: VEL_003 

Observed data time period from: / 4/ 3/1984 to /11/21/1984 with gaps of 137.96 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.525 

u 87600 0.471 

U-u 26 cm/s 24h 87600 0.054 0.094 0.077 0.0 99.9 0.0 0.7 0.8 0.96 

AFC-afc 26 cm/s 24h 704 0.124 0.137 0.058 0.0 99.7 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 704 0.035 0.067 0.057 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 704 -0.043 0.227 0.223 0.0 96.2 0.0 0.0 0.0 

TEC-tec 0.50h 25h 704 0.036 0.158 0.154 0.0 99.9 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 703 0.108 0.229 0.203 0.0 98.2 0.6 0.0 0.0 

TEF-tef 0.25h 25h 704 -0.101 0.219 0.195 0.0 98.3 0.0 0.0 0.0 

TSE-tse 0.25h 25h 704 0.316 0.365 0.184 0.0 86.8 0.4 0.0 0.0 

TEE-tee 0.25h 25h 704 0.107 0.213 0.184 0.0 98.0 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 22513 0.536 

u 22513 0.481 

U-u 26 cm/s 24h 22513 0.056 0.320 0.315 4.2 50.9 4.9 1.3 2.0 0.54 

TSF-tsf 0.25h 25h 2 0.649 0.790 0.637 0.0 50.0 50.0 0.0 0.0 

TEF-tef 0.25h 25h 2 1.187 1.189 0.110 0.0 0.0 100.0 0.0 0.0 

TSE-tse 0.25h 25h 22 1.315 1.367 0.384 0.0 0.0 77.3 0.0 74.1 

TEE-tee 0.25h 25h 22 1.310 1.337 0.273 0.0 0.0 90.9 0.0 85.7 
- 90 -

Station: VEL_005 

Observed data time period from: / 4/ 3/1984 to /11/21/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.519 

u 87600 0.509 

U-u 26 cm/s 24h 87600 0.010 0.093 0.092 0.0 99.8 0.0 0.7 0.8 0.96 

AFC-afc 26 cm/s 24h 704 0.033 0.090 0.083 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 704 -0.048 0.088 0.074 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 704 0.004 0.214 0.214 0.0 97.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 704 -0.112 0.235 0.207 0.0 96.3 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 702 0.074 0.310 0.301 0.1 91.9 0.4 0.0 0.0 

TEF-tef 0.25h 25h 703 -0.023 0.241 0.240 0.0 96.2 0.0 0.0 0.0 

TSE-tse 0.25h 25h 704 0.261 0.358 0.245 0.0 86.5 0.0 0.0 0.0 

TEE-tee 0.25h 25h 704 0.124 0.265 0.235 0.0 95.5 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 32330 0.532 

u 32330 0.524 

U-u 26 cm/s 24h 32330 0.008 0.332 0.332 7.5 50.0 3.1 1.5 3.6 0.52 

TSF-tsf 0.25h 25h 12 1.179 1.670 1.236 8.3 0.0 83.3 0.0 0.0 

TEF-tef 0.25h 25h 11 1.210 1.276 0.425 0.0 9.1 72.7 0.0 0.0 

TSE-tse 0.25h 25h 28 1.333 1.452 0.585 0.0 10.7 71.4 0.0 0.0 

TEE-tee 0.25h 25h 28 1.145 1.328 0.685 3.6 7.1 64.3 0.0 0.0 

Station: VEL_012 

Observed data time period from: /10/20/1984 to /11/19/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.115 

u 87600 0.116 

U-u 26 cm/s 24h 87600 -0.001 0.052 0.052 0.0 100.0 0.0 0.0 0.0 0.63 

AFC-afc 26 cm/s 24h 557 0.008 0.049 0.048 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 338 -0.008 0.040 0.039 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 557 -0.008 0.370 0.370 0.7 81.1 0.9 0.0 0.0 

TEC-tec 0.50h 25h 338 -0.195 0.358 0.301 0.0 80.5 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 7261 0.122 

u 7261 0.167 

U-u 26 cm/s 24h 7261 -0.046 0.098 0.087 0.0 99.5 0.0 0.0 0.0 0.40 

AFC-afc 26 cm/s 24h 9 -0.109 0.126 0.067 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 7 -0.084 0.104 0.065 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 9 -1.267 1.621 1.073 44.4 22.2 0.0 0.0 0.0 

TEC-tec 0.50h 25h 7 0.871 1.273 1.003 0.0 14.3 42.9 0.0 0.0 
- 91 -

Station: VEL_016 

Observed data time period from: / 3/ 8/1984 to /11/27/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.100 

u 87600 0.077 

U-u 26 cm/s 24h 87600 0.023 0.061 0.057 0.0 100.0 0.0 0.0 0.0 0.52 

AFC-afc 26 cm/s 24h 551 0.008 0.067 0.067 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 233 0.059 0.064 0.024 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 551 -0.328 0.552 0.445 5.3 62.8 0.4 12.8 0.0 

TEC-tec 0.50h 25h 233 -0.622 0.736 0.394 14.6 36.9 0.0 74.5 0.0 

 SCENARIO: HINDCAST 

U 63528 0.117 

u 63528 0.131 

U-u 26 cm/s 24h 63528 -0.014 0.098 0.097 0.0 98.0 0.0 0.0 1.2 0.44 

AFC-afc 26 cm/s 24h 22 -0.058 0.108 0.093 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 31 -0.028 0.088 0.084 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 22 0.082 1.802 1.842 27.3 22.7 40.9 0.0 0.0 

TEC-tec 0.50h 25h 31 -0.323 1.728 1.725 41.9 16.1 29.0 0.0 0.0 

TEF-tef 0.25h 25h 6 -0.321 1.259 1.334 16.7 16.7 16.7 0.0 0.0 

TEE-tee 0.25h 25h 2 1.109 1.209 0.680 0.0 0.0 50.0 0.0 0.0 

Station: VEL_017 

Observed data time period from: / 4/17/1984 to /10/ 9/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.223 

u 87600 0.082 

U-u 26 cm/s 24h 87600 0.141 0.191 0.129 0.0 80.3 0.3 0.0 5.4 0.19 

AFC-afc 26 cm/s 24h 377 0.197 0.250 0.153 0.0 64.2 1.3 0.0 0.0 

AEC-aec 26 cm/s 24h 321 0.189 0.224 0.121 0.0 66.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 377 0.137 0.902 0.893 9.0 46.7 14.6 13.0 37.8 

TEC-tec 0.50h 25h 321 0.120 0.702 0.693 6.5 58.3 6.5 49.9 36.6 

 SCENARIO: HINDCAST 

U 28673 0.288 

u 28673 0.157 

U-u 26 cm/s 24h 28673 0.131 0.242 0.204 0.0 71.8 3.6 0.0 8.0 0.24 

AFC-afc 26 cm/s 24h 23 0.228 0.298 0.196 0.0 52.2 4.3 0.0 0.0 

AEC-aec 26 cm/s 24h 11 -0.092 0.160 0.137 0.0 90.9 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 23 -0.835 1.830 1.665 56.5 17.4 21.7 0.0 0.0 

TEC-tec 0.50h 25h 11 -0.482 1.286 1.251 27.3 27.3 18.2 0.0 0.0 

TSF-tsf 0.25h 25h 7 0.563 2.075 2.158 28.6 14.3 42.9 0.0 0.0 

TEF-tef 0.25h 25h 11 0.159 1.495 1.559 27.3 0.0 18.2 0.0 0.0 

TSE-tse 0.25h 25h 2 2.766 2.766 0.021 0.0 0.0 100.0 0.0 0.0 

TEE-tee 0.25h 25h 7 -0.039 1.419 1.532 42.9 28.6 28.6 0.0 0.0 
- 92 -

Station: VEL_018 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.313 

u 87600 0.229 

U-u 26 cm/s 24h 87600 0.084 0.104 0.061 0.0 100.0 0.0 0.0 0.6 0.86 

AFC-afc 26 cm/s 24h 704 0.095 0.101 0.035 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 704 0.127 0.131 0.032 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 704 -0.432 0.490 0.231 0.1 57.7 0.0 0.0 0.0 

TEC-tec 0.50h 25h 704 0.029 0.192 0.189 0.0 98.4 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 585 0.889 0.964 0.371 0.0 12.5 37.1 0.0258.4 

TEF-tef 0.25h 25h 703 -0.821 0.883 0.327 27.0 17.5 0.0 149.2 0.0 

TSE-tse 0.25h 25h 702 0.131 0.299 0.269 0.0 91.9 0.3 0.0 0.0 

TEE-tee 0.25h 25h 588 -0.755 0.820 0.321 21.6 21.4 0.0 124.3 0.0 

 SCENARIO: HINDCAST 

U 7231 0.307 

u 7231 0.239 

U-u 26 cm/s 24h 7231 0.069 0.169 0.154 0.0 88.3 0.0 0.0 0.0 0.59 

TSF-tsf 0.25h 25h 6 0.738 1.921 1.943 16.7 16.7 33.3 0.0 0.0 

TEF-tef 0.25h 25h 3 0.319 0.693 0.754 0.0 0.0 0.0 0.0 0.0 

TSE-tse 0.25h 25h 4 0.562 2.231 2.493 25.0 0.0 50.0 0.0 0.0 

TEE-tee 0.25h 25h 3 0.896 0.980 0.488 0.0 0.0 33.3 0.0 0.0 

Station: VEL_019 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.483 

u 87600 0.416 

U-u 26 cm/s 24h 87600 0.067 0.103 0.079 0.0 99.4 0.0 0.4 0.9 0.95 

AFC-afc 26 cm/s 24h 704 0.115 0.128 0.055 0.0 99.9 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 704 0.056 0.085 0.065 0.0 100.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 704 -0.351 0.427 0.243 0.3 68.3 0.0 0.0 0.0 

TEC-tec 0.50h 25h 704 0.006 0.224 0.224 0.0 96.7 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 703 0.121 0.308 0.284 0.3 93.3 0.4 0.0 12.8 

TEF-tef 0.25h 25h 704 -0.168 0.284 0.229 0.0 91.3 0.0 0.0 0.0 

TSE-tse 0.25h 25h 704 0.228 0.349 0.265 0.0 83.5 0.7 0.0 0.0 

TEE-tee 0.25h 25h 704 -0.097 0.277 0.260 0.0 89.5 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 7206 0.469 

u 7206 0.430 

U-u 26 cm/s 24h 7206 0.039 0.254 0.251 1.5 65.8 1.2 0.8 0.9 0.64 

TSE-tse 0.25h 25h 10 1.333 1.428 0.540 0.0 10.0 80.0 0.0 0.0 

TEE-tee 0.25h 25h 10 1.128 1.190 0.400 0.0 0.0 60.0 0.0 0.0 
- 93 -

Station: VEL_020 

Observed data time period from: / 9/18/1984 to /10/10/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.387 

u 87600 0.330 

U-u 26 cm/s 24h 87600 0.057 0.096 0.077 0.0 99.4 0.0 0.0 0.6 0.92 

AFC-afc 26 cm/s 24h 545 0.023 0.051 0.046 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 705 0.072 0.086 0.048 0.0 99.9 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 545 -0.474 0.629 0.414 8.3 45.5 0.0 62.0 0.0 

TEC-tec 0.50h 25h 705 -0.583 0.690 0.369 9.5 28.7 0.0 99.6 0.0 

TSF-tsf 0.25h 25h 543 -0.060 0.346 0.341 0.0 88.2 0.7 0.0 0.0 

TEF-tef 0.25h 25h 545 -0.529 0.603 0.291 5.7 47.9 0.0 49.9 0.0 

TSE-tse 0.25h 25h 653 0.013 0.231 0.231 0.0 97.1 0.0 0.0 0.0 

TEE-tee 0.25h 25h 653 -0.613 0.697 0.331 11.6 40.9 0.0 75.6 0.0 

 SCENARIO: HINDCAST 

U 5187 0.389 

u 5187 0.356 

U-u 26 cm/s 24h 5187 0.033 0.195 0.192 0.1 81.4 0.5 0.1 0.6 0.66 

TSF-tsf 0.25h 25h 2 1.195 1.295 0.706 0.0 0.0 50.0 0.0 0.0 

TEF-tef 0.25h 25h 2 0.302 0.373 0.310 0.0 50.0 0.0 0.0 0.0 

TSE-tse 0.25h 25h 6 0.871 1.653 1.539 16.7 0.0 66.7 0.0 0.0 

TEE-tee 0.25h 25h 6 1.065 1.145 0.460 0.0 0.0 66.7 0.0 0.0 

Station: VEL_021 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.245 

u 87600 0.230 

U-u 26 cm/s 24h 87600 0.016 0.073 0.071 0.0 100.0 0.0 0.0 0.3 0.89 

AFC-afc 26 cm/s 24h 701 0.004 0.040 0.040 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 685 -0.005 0.050 0.050 0.0 99.9 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 701 -0.705 0.771 0.314 15.1 22.4 0.0 162.9 0.0 

TEC-tec 0.50h 25h 685 -0.384 0.471 0.274 0.3 66.7 0.1 0.0 0.0 

TSF-tsf 0.25h 25h 608 -0.119 0.424 0.407 2.1 77.5 0.7 0.0 0.0 

TEF-tef 0.25h 25h 629 -0.739 0.816 0.346 23.7 27.3 0.0 124.2 0.0 

TSE-tse 0.25h 25h 624 -0.318 0.519 0.410 3.8 61.4 0.0 24.7 0.0 

TEE-tee 0.25h 25h 604 -0.564 0.691 0.400 11.8 38.6 0.0 123.5 0.0 

 SCENARIO: HINDCAST 

U 7211 0.238 

u 7211 0.239 

U-u 26 cm/s 24h 7211 -0.001 0.116 0.116 0.0 98.2 0.0 0.0 0.0 0.71 

TSF-tsf 0.25h 25h 2 0.813 1.536 1.844 0.0 50.0 50.0 0.0 0.0 

TEF-tef 0.25h 25h 2 1.002 1.024 0.296 0.0 0.0 50.0 0.0 0.0 

TSE-tse 0.25h 25h 7 0.381 1.277 1.316 28.6 14.3 42.9 0.0 0.0 

TEE-tee 0.25h 25h 6 0.764 1.059 0.804 0.0 33.3 50.0 0.0 0.0 
- 94 -

Station: VEL_022 

Observed data time period from: / 5/ 9/1984 to /10/18/1984 with gaps of 67.41 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.330 

u 87600 0.426 

U-u 26 cm/s 24h 87600 -0.096 0.178 0.150 0.1 84.7 0.0 1.4 0.5 0.78 

AFC-afc 26 cm/s 24h 695 -0.159 0.181 0.087 0.0 88.9 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 705 -0.275 0.288 0.087 0.3 45.1 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 695 -0.198 0.355 0.294 0.6 83.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 705 -0.804 0.872 0.339 25.4 10.4 0.1 198.7 0.0 

TSF-tsf 0.25h 25h 690 -0.787 0.855 0.336 24.6 16.4 0.3 161.0 0.0 

TEF-tef 0.25h 25h 694 -0.456 0.537 0.283 0.0 48.4 0.1 0.0 0.0 

TSE-tse 0.25h 25h 694 -0.362 0.463 0.290 0.4 66.9 0.1 0.0 0.0 

TEE-tee 0.25h 25h 695 -0.307 0.408 0.269 0.0 77.1 0.4 0.0 0.0 

 SCENARIO: HINDCAST 

U 22720 0.346 

u 22720 0.431 

U-u 26 cm/s 24h 22720 -0.085 0.206 0.187 1.3 80.9 0.0 1.7 0.0 0.70 

TSF-tsf 0.25h 25h 9 0.408 1.606 1.647 22.2 11.1 22.2 0.0 0.0 

TEF-tef 0.25h 25h 8 0.154 0.822 0.863 12.5 62.5 25.0 0.0 0.0 

TSE-tse 0.25h 25h 37 1.072 1.210 0.569 0.0 10.8 51.4 0.0 0.0 

TEE-tee 0.25h 25h 37 0.735 0.900 0.527 0.0 40.5 27.0 0.0 0.0 

Station: VEL_023 

Observed data time period from: / 3/ 8/1984 to /11/28/1984 with gaps of 55.17 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.429 

u 87600 0.431 

U-u 26 cm/s 24h 87600 -0.003 0.066 0.066 0.0 99.9 0.0 1.5 0.8 0.98 

AFC-afc 26 cm/s 24h 704 -0.029 0.074 0.068 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 705 -0.027 0.056 0.049 0.0 99.9 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 704 -0.344 0.404 0.212 0.1 75.9 0.0 0.0 0.0 

TEC-tec 0.50h 25h 705 -0.030 0.228 0.226 0.0 96.0 0.1 0.0 0.0 

TSF-tsf 0.25h 25h 703 -0.069 0.287 0.279 0.4 94.6 0.3 0.0 0.0 

TEF-tef 0.25h 25h 704 -0.165 0.280 0.226 0.0 89.3 0.0 0.0 0.0 

TSE-tse 0.25h 25h 704 -0.170 0.254 0.189 0.0 93.0 0.0 0.0 0.0 

TEE-tee 0.25h 25h 704 -0.258 0.325 0.197 0.0 88.1 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 50364 0.448 

u 50364 0.379 

U-u 26 cm/s 24h 50364 0.069 0.277 0.269 1.6 62.4 3.8 1.4 2.3 0.55 

AEC-aec 26 cm/s 24h 4 0.096 0.144 0.124 0.0 100.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 4 -2.025 2.284 1.220 75.0 25.0 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 34 0.859 1.704 1.493 11.8 11.8 52.9 0.0 0.0 

TEF-tef 0.25h 25h 29 0.973 1.394 1.016 3.4 31.0 48.3 0.0 0.0 

TSE-tse 0.25h 25h 61 1.385 1.790 1.142 3.3 14.8 68.9 0.0 0.0 

TEE-tee 0.25h 25h 59 0.937 1.208 0.770 1.7 16.9 59.3 0.0 0.0 
- 95 -

Station: VEL_024 

Observed data time period from: / 5/ 9/1984 to /10/18/1984 with gaps of 68.07 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.321 

u 87600 0.231 

U-u 26 cm/s 24h 87600 0.090 0.125 0.087 0.0 97.3 0.0 0.0 0.7 0.79 

AFC-afc 26 cm/s 24h 647 0.079 0.097 0.056 0.0 100.0 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 701 0.107 0.119 0.052 0.0 99.9 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 647 -0.162 0.419 0.386 0.8 72.6 0.3 0.0 0.0 

TEC-tec 0.50h 25h 701 0.111 0.312 0.291 0.0 86.9 0.1 0.0 0.0 

TSF-tsf 0.25h 25h 598 0.720 0.882 0.509 0.2 40.8 26.3 0.0123.8 

TEF-tef 0.25h 25h 647 -1.100 1.135 0.277 63.5 2.2 0.0 324.2 0.0 

TSE-tse 0.25h 25h 656 0.432 0.725 0.583 0.0 61.3 16.5 0.0149.3 

TEE-tee 0.25h 25h 611 -0.765 0.917 0.506 31.9 27.8 0.5 249.0 0.0 

 SCENARIO: HINDCAST 

U 22599 0.332 

u 22599 0.261 

U-u 26 cm/s 24h 22599 0.071 0.187 0.173 0.0 84.0 0.0 0.0 0.1 0.53 

AEC-aec 26 cm/s 24h 2 0.016 0.064 0.088 0.0 100.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 2 -2.350 2.351 0.070 100.0 0.0 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 21 1.816 1.924 0.653 0.0 0.0 85.7 0.0 0.0 

TEF-tef 0.25h 25h 18 1.073 1.291 0.740 0.0 22.2 55.6 0.0 0.0 

TSE-tse 0.25h 25h 26 1.486 1.987 1.345 7.7 0.0 88.5 0.0 0.0 

TEE-tee 0.25h 25h 26 0.646 0.870 0.595 0.0 38.5 34.6 0.0 0.0 

Station: VEL_025 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 68.07 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.267 

u 87600 0.242 

U-u 26 cm/s 24h 87600 0.024 0.095 0.092 0.0 99.9 0.0 0.0 0.4 0.75 

AEC-aec 26 cm/s 24h 705 0.054 0.087 0.069 0.0 100.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 705 -0.257 0.646 0.593 11.2 54.5 0.0 99.3 0.0 

TSE-tse 0.25h 25h 701 -0.521 0.788 0.591 18.5 51.4 0.1 136.7 0.0 

TEE-tee 0.25h 25h 700 -1.001 1.252 0.753 53.3 18.4 1.0 236.2 49.6 

 SCENARIO: HINDCAST 

U 7219 0.257 

u 7219 0.240 

U-u 26 cm/s 24h 7219 0.017 0.144 0.143 0.0 93.3 0.0 0.0 0.0 0.64 

AEC-aec 26 cm/s 24h 32 -0.061 0.111 0.094 0.0 100.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 32 1.419 1.540 0.609 0.0 0.0 68.8 0.0 87.0 

TSE-tse 0.25h 25h 28 0.748 1.022 0.709 0.0 50.0 35.7 0.0 0.0 

TEE-tee 0.25h 25h 32 1.094 1.345 0.795 0.0 18.8 59.4 0.0 88.7 
- 96 -

Station: VEL_033 

Observed data time period from: / 3/ 8/1984 to / 9/11/1984 with gaps of 17.26 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.480 

u 87600 0.613 

U-u 26 cm/s 24h 87600 -0.134 0.229 0.187 1.9 72.9 0.0 3.0 0.6 0.85 

AFC-afc 26 cm/s 24h 531 -0.367 0.389 0.128 11.5 20.7 0.0 24.9 0.0 

AEC-aec 26 cm/s 24h 705 -0.177 0.199 0.091 0.0 80.1 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 531 -0.322 0.524 0.413 4.9 60.6 0.0 74.5 0.0 

TEC-tec 0.50h 25h 705 -0.151 0.599 0.580 2.7 52.9 4.1 0.0 86.9 

TSF-tsf 0.25h 25h 528 -0.257 0.476 0.401 0.4 65.0 0.6 0.0 0.0 

TEF-tef 0.25h 25h 531 -0.136 0.365 0.339 0.0 81.2 0.0 0.0 0.0 

TSE-tse 0.25h 25h 570 -0.604 0.697 0.348 7.9 27.4 0.0 74.4 0.0 

TEE-tee 0.25h 25h 570 -0.245 0.467 0.398 0.0 65.6 0.9 0.0 0.0 

 SCENARIO: HINDCAST 

U 40786 0.508 

u 40786 0.626 

U-u 26 cm/s 24h 40786 -0.117 0.399 0.381 13.9 39.2 7.7 4.5 2.7 0.52 

TSF-tsf 0.25h 25h 8 -0.044 1.245 1.330 25.0 12.5 12.5 0.0 0.0 

TEF-tef 0.25h 25h 7 0.815 1.265 1.044 14.3 14.3 57.1 0.0 0.0 

TSE-tse 0.25h 25h 96 1.453 1.586 0.639 0.0 10.4 82.3 0.0 61.6 

TEE-tee 0.25h 25h 96 1.159 1.245 0.458 0.0 6.3 70.8 0.0 49.0 

Station: VEL_047 

Observed data time period from: / 6/14/1984 to / 4/ 3/1985 with gaps of 256.05 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.484 

u 87600 0.684 

U-u 26 cm/s 24h 87600 -0.199 0.283 0.201 3.4 56.0 0.0 3.9 0.0 0.73 

AFC-afc 26 cm/s 24h 703 -0.384 0.399 0.111 12.9 14.4 0.0 111.8 0.0 

AEC-aec 26 cm/s 24h 704 -0.310 0.329 0.110 4.7 36.2 0.0 49.7 0.0 

TFC-tfc 0.50h 25h 703 -0.274 0.359 0.232 0.0 79.7 0.0 0.0 0.0 

TEC-tec 0.50h 25h 704 -0.796 1.060 0.700 39.3 34.7 0.0 236.3 0.0 

TSF-tsf 0.25h 25h 701 -0.460 0.605 0.394 9.3 54.2 0.0 99.6 0.0 

TEF-tef 0.25h 25h 702 -0.420 0.554 0.362 7.1 60.0 0.0 74.6 0.0 

TSE-tse 0.25h 25h 703 -0.472 0.575 0.328 4.1 52.3 0.0 37.4 0.0 

TEE-tee 0.25h 25h 703 -0.286 0.404 0.286 0.0 76.0 0.0 0.0 0.0 

 SCENARIO: HINDCAST 

U 7220 0.487 

u 7220 0.701 

U-u 26 cm/s 24h 7220 -0.215 0.378 0.311 14.4 39.1 1.8 2.3 0.4 0.48 

TSF-tsf 0.25h 25h 4 1.601 1.615 0.246 0.0 0.0 100.0 0.0 0.0 

TEF-tef 0.25h 25h 4 1.287 1.297 0.181 0.0 0.0 100.0 0.0 0.0 
- 97 -

Station: VEL_051 

Observed data time period from: / 3/ 6/1984 to / 4/ 3/1985 with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.536 

u 87600 0.650 

U-u 26 cm/s 24h 87600 -0.114 0.221 0.189 0.5 75.6 0.4 4.7 0.3 0.78 

AEC-aec 26 cm/s 24h 665 -0.182 0.189 0.049 0.0 94.0 0.0 0.0 0.0 

TEC-tec 0.50h 25h 665 -0.767 1.007 0.653 24.5 36.2 0.0 136.8 0.0 

TSE-tse 0.25h 25h 594 -0.458 0.555 0.313 5.4 56.6 0.0 74.3 0.0 

TEE-tee 0.25h 25h 594 -0.347 0.485 0.339 5.1 68.9 0.0 74.4 0.0 

 SCENARIO: HINDCAST 

U 50897 0.540 

u 50897 0.637 

U-u 26 cm/s 24h 50897 -0.097 0.304 0.288 6.2 61.8 2.4 5.1 4.5 0.50 

TSE-tse 0.25h 25h 85 0.059 0.971 0.975 5.9 52.9 17.6 0.0 0.0 

TEE-tee 0.25h 25h 85 0.374 0.914 0.839 2.4 60.0 17.6 0.0 0.0 

Station: VEL_052 

Observed data time period from: / 3/ 6/1984 to / 4/ 6/1984 with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.188 

u 87600 0.467 

U-u 26 cm/s 24h 87600 -0.279 0.341 0.197 9.5 41.1 0.0 3.6 0.0 0.50 

AFC-afc 26 cm/s 24h 647 -0.491 0.503 0.111 38.9 0.5 0.0 186.4 0.0 

AEC-aec 26 cm/s 24h 51 -0.326 0.335 0.076 0.0 15.7 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 647 -0.235 0.506 0.449 5.3 69.2 0.0 24.9 0.0 

TEC-tec 0.50h 25h 51 -1.255 1.321 0.417 66.7 0.0 0.0 0.0 0.0 

TSF-tsf 0.25h 25h 75 2.213 2.592 1.359 6.7 0.0 92.0 0.0 49.9 

TEF-tef 0.25h 25h 19 0.610 0.774 0.489 0.0 36.8 21.1 0.0 0.0 

TSE-tse 0.25h 25h 28 1.637 2.055 1.266 7.1 3.6 85.7 0.0 49.5 

TEE-tee 0.25h 25h 26 0.344 0.773 0.706 0.0 61.5 11.5 0.0 0.0 

 SCENARIO: HINDCAST 

U 7397 0.189 

u 7397 0.459 

U-u 26 cm/s 24h 7397 -0.269 0.324 0.179 6.3 46.8 0.0 5.0 0.0 0.48 

TSF-tsf 0.25h 25h 10 -2.069 2.163 0.666 90.0 10.0 0.0 0.0 0.0 

TEF-tef 0.25h 25h 4 2.088 2.201 0.804 0.0 0.0 75.0 0.0 0.0 

TSE-tse 0.25h 25h 2 -1.696 1.800 0.854 100.0 0.0 0.0 0.0 0.0 
- 98 -

Station: VEL_154 

Observed data time period from: / 6/20/1984 to / 4/ 3/1985 with gaps of 115.87 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

U 87600 0.375 

u 87600 0.492 

U-u 26 cm/s 24h 87600 -0.117 0.249 0.219 2.0 67.2 0.2 2.6 0.8 0.76 

AFC-afc 26 cm/s 24h 488 -0.059 0.170 0.160 0.0 89.5 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 419 -0.229 0.252 0.104 0.0 57.8 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 488 -0.605 0.771 0.479 22.5 38.1 0.2 123.4 0.0 

TEC-tec 0.50h 25h 419 -0.421 0.654 0.502 8.1 54.4 0.0 49.7 0.0 

TSF-tsf 0.25h 25h 359 -0.615 0.890 0.644 29.5 38.2 0.3 98.9 0.0 

TEF-tef 0.25h 25h 361 -0.290 0.601 0.527 10.2 64.8 0.3 49.5 0.0 

TSE-tse 0.25h 25h 346 -0.691 1.098 0.854 44.2 21.4 3.8 161.8 0.0 

TEE-tee 0.25h 25h 409 0.225 0.554 0.507 0.0 65.3 9.0 0.0 12.6 

 SCENARIO: HINDCAST 

U 32939 0.398 

u 32939 0.451 

U-u 26 cm/s 24h 32939 -0.053 0.393 0.389 12.5 52.2 5.7 6.3 4.2 0.43 

AFC-afc 26 cm/s 24h 2 0.648 0.648 0.002 0.0 0.0 100.0 0.0 0.0 

AEC-aec 26 cm/s 24h 3 0.257 0.343 0.277 0.0 33.3 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 2 2.450 2.455 0.212 0.0 0.0 100.0 0.0 0.0 

TEC-tec 0.50h 25h 3 -0.433 1.913 2.282 33.3 33.3 33.3 0.0 0.0 

TSF-tsf 0.25h 25h 27 0.358 1.350 1.326 11.1 40.7 29.6 0.0 0.0 

TEF-tef 0.25h 25h 30 0.818 2.183 2.059 20.0 20.0 50.0 0.0 0.0 

TSE-tse 0.25h 25h 42 -0.380 1.648 1.623 45.2 19.0 19.0 0.0 0.0 

TEE-tee 0.25h 25h 33 0.266 1.668 1.672 27.3 9.1 33.3 0.0 0.0 
- 99 -

APPENDIX F. Skill Assessment Scores of Current Direction: Astronomical 

Tide Simulation 

Station: VEL_002 

Observed data time period from: / 4/24/1984 to /12/ 2/1984with gaps of 68.69 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 212.599 

d 87600 207.471 

D-d 22.5 dg 24h 87600 -1.774 5.996 5.728 0.0 98.9 0.0 0.2 0.0 0.92 

DFC-dfc 22.5 dg 24h 577 -1.111 5.419 5.309 0.0 99.7 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 705 -3.953 4.326 1.759 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_003 

Observed data time period from: / 4/ 3/1984 to /11/21/1984with gaps of 137.96 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 222.674 

d 87600 229.648 

D-d 22.5 dg 24h 87600 -7.341 11.548 8.914 0.0 96.5 0.0 0.4 0.0 0.98 

DFC-dfc 22.5 dg 24h 704 -4.139 5.168 3.096 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 704 -16.888 17.170 3.100 0.0 92.8 0.0 0.0 0.0 

 

Station: VEL_005 

Observed data time period from: / 4/ 3/1984 to /11/21/1984with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 217.282 

d 87600 218.910 

D-d 22.5 dg 24h 87600 -4.026 6.489 5.090 0.0 99.9 0.0 0.3 0.2 0.96 

DFC-dfc 22.5 dg 24h 704 -8.726 8.847 1.459 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 704 -5.907 6.151 1.717 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_012 

Observed data time period from: /10/20/1984 to /11/19/1984with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 192.004 

d 87600 205.595 

D-d 22.5 dg 24h 87600 0.000 0.000 0.000 0.0 100.0 0.0 0.0 0.0 0.76 

DFC-dfc 22.5 dg 24h 557 26.635 31.443 16.725 0.0 39.3 11.0 0.0 86.8 

DEC-dec 22.5 dg 24h 338 -27.088 31.476 16.053 15.1 42.3 0.0 111.6 0.0 

 
- 100 -

Station: VEL_016 

Observed data time period from: / 3/ 8/1984 to /11/27/1984with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 188.031 

d 87600 217.336 

D-d 22.5 dg 24h 87600 0.000 0.000 0.000 0.0 100.0 0.0 0.0 0.0 0.71 

DFC-dfc 22.5 dg 24h 551 -5.618 24.510 23.879 8.3 68.6 0.9 11.9 0.0 

DEC-dec 22.5 dg 24h 233 -25.295 32.207 19.979 19.3 49.8 0.0 123.1 0.0 

 

Station: VEL_017 

Observed data time period from: / 4/17/1984 to /10/ 9/1984with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 198.694 

d 87600 197.867 

D-d 22.5 dg 24h 87600 0.000 0.000 0.000 0.0 100.0 0.0 0.0 0.0 0.62 

DFC-dfc 22.5 dg 24h 377 -3.348 27.710 27.543 7.7 61.5 3.2 0.0 0.0 

DEC-dec 22.5 dg 24h 321 2.557 20.013 19.880 1.6 75.4 0.6 0.0 0.0 

 

Station: VEL_018 

Observed data time period from: / 9/18/1984 to /10/18/1984with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 225.419 

d 87600 226.758 

D-d 22.5 dg 24h 87600 -0.449 2.169 2.122 0.0 100.0 0.0 0.0 0.0 0.97 

DFC-dfc 22.5 dg 24h 704 -2.316 2.816 1.603 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 704 2.313 2.995 1.903 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_019 

Observed data time period from: / 9/18/1984 to /10/18/1984with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 235.805 

d 87600 228.916 

D-d 22.5 dg 24h 87600 -1.338 3.269 2.983 0.0 100.0 0.0 0.2 0.0 0.90 

DFC-dfc 22.5 dg 24h 704 -4.191 4.299 0.959 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 704 0.224 2.365 2.356 0.0 100.0 0.0 0.0 0.0 
- 101 -

Station: VEL_020 

Observed data time period from: / 9/18/1984 to /10/10/1984with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 106.213 

d 87600 108.905 

D-d 22.5 dg 24h 87600 3.524 6.366 5.302 0.0 100.0 0.0 0.7 0.0 0.92 

DFC-dfc 22.5 dg 24h 545 7.662 7.926 2.029 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 705 4.441 5.334 2.955 0.0 100.0 0.0 0.0 0.0 

Station: VEL_021 

Observed data time period from: / 9/18/1984 to /10/18/1984with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 230.388 

d 87600 223.314 

D-d 22.5 dg 24h 87600 1.793 3.274 2.739 0.0 100.0 0.0 0.0 0.0 0.92 

DFC-dfc 22.5 dg 24h 701 5.153 6.072 3.215 0.0 98.7 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 685 6.276 6.647 2.193 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_022 

Observed data time period from: / 5/ 9/1984 to /10/18/1984with gaps of 67.41 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 232.161 

d 87600 239.157 

D-d 22.5 dg 24h 87600 -6.630 9.212 6.395 0.0 100.0 0.0 0.0 0.0 0.95 

DFC-dfc 22.5 dg 24h 695 -7.883 8.211 2.302 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 705 -15.069 15.181 1.841 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_023 

Observed data time period from: / 3/ 8/1984 to /11/28/1984with gaps of 55.17 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 244.341 

d 87600 244.113 

D-d 22.5 dg 24h 87600 0.608 4.109 4.064 0.0 99.9 0.0 0.1 0.0 0.85 

DFC-dfc 22.5 dg 24h 704 -0.117 1.608 1.605 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 705 2.995 3.400 1.611 0.0 100.0 0.0 0.0 0.0 

 
- 102 -

Station: VEL_024 

Observed data time period from: / 5/ 9/1984 to /10/18/1984with gaps of 68.07 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 206.933 

d 87600 226.494 

D-d 22.5 dg 24h 87600 4.401 9.344 8.243 0.0 98.2 0.0 0.0 0.0 0.76 

DFC-dfc 22.5 dg 24h 647 14.912 15.018 1.785 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 701 11.561 12.478 4.699 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_025 

Observed data time period from: / 9/18/1984 to /10/18/1984with gaps of 68.07 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 108.299 

d 87600 185.704 

D-d 22.5 dg 24h 87600 -34.679 77.508 69.318 22.3 77.7 0.0 3.8 0.0 0.09 

DEC-dec 22.5 dg 24h 705 11.344 11.532 2.073 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_033 

Observed data time period from: / 3/ 8/1984 to / 9/11/1984with gaps of 17.26 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 222.524 

d 87600 223.468 

D-d 22.5 dg 24h 87600 -1.277 5.485 5.334 0.0 99.6 0.0 0.0 0.1 0.89 

DFC-dfc 22.5 dg 24h 531 -3.463 5.106 3.756 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 705 2.190 4.406 3.826 0.0 100.0 0.0 0.0 0.0 

Station: VEL_047 

Observed data time period from: / 6/14/1984 to / 4/ 3/1985with gaps of 256.05 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 156.282 

d 87600 163.335 

D-d 22.5 dg 24h 87600 -3.154 9.637 9.107 0.0 99.7 0.2 0.2 0.4 0.91 

DFC-dfc 22.5 dg 24h 703 -1.375 1.457 0.482 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 704 -6.665 6.683 0.495 0.0 100.0 0.0 0.0 0.0 
- 103 -

Station: VEL_051 

Observed data time period from: / 3/ 6/1984 to / 4/ 3/1985with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 195.019 

d 87600 199.623 

D-d 22.5 dg 24h 87600 -0.011 15.370 15.370 0.2 99.3 0.5 0.4 0.6 0.92 

DEC-dec 22.5 dg 24h 665 0.077 0.461 0.455 0.0 100.0 0.0 0.0 0.0 

 

Station: VEL_052 

Observed data time period from: / 3/ 6/1984 to / 4/ 6/1984with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 142.529 

d 87600 139.500 

D-d 22.5 dg 24h 87600 0.065 1.814 1.813 0.0 100.0 0.0 0.0 0.0 0.90 

DFC-dfc 22.5 dg 24h 647 -5.432 5.483 0.750 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 51 4.597 4.674 0.853 0.0 100.0 0.0 0.0 0.0 

Station: VEL_154 

Observed data time period from: / 6/20/1984 to / 4/ 3/1985with gaps of 115.87 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: TIDAL SIMULATION ONLY 

D 87600 183.673 

d 87600 174.262 

D-d 22.5 dg 24h 87600 -2.787 6.136 5.466 0.0 99.9 0.1 0.0 2.2 0.89 

DFC-dfc 22.5 dg 24h 488 -3.669 3.793 0.961 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 419 -5.311 5.394 0.948 0.0 100.0 0.0 0.0 0.0 

 
- 104 -
- 105 -

APPENDIX G. Skill Assessment Scores of Current Speed: Nowcast/Forecast 

Station: Philadelphia 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

U 25200 0.568 

u 25200 0.660 

U-u 26 cm/s 24h 25200 -0.092 0.217 0.197 0.8 80.3 0.5 2.5 3.5 0.81 

AFC-afc 26 cm/s 24h 41 -0.177 0.180 0.035 0.0 97.6 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 192 -0.176 0.185 0.057 0.0 93.8 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 41 -0.512 0.725 0.520 12.2 34.1 0.0 24.7 0.0 

TEC-tec 0.50h 25h 192 -0.681 0.822 0.461 21.4 30.7 0.0 36.4 0.0 

TSF-tsf 0.25h 25h 40 -0.170 0.320 0.274 0.0 85.0 0.0 0.0 0.0 

TEF-tef 0.25h 25h 40 -0.292 0.374 0.237 0.0 77.5 0.0 0.0 0.0 

TSE-tse 0.25h 25h 186 -0.452 0.503 0.221 0.5 62.4 0.0 0.0 0.0 

TEE-tee 0.25h 25h 186 -0.571 0.619 0.240 1.1 30.6 0.5 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

U00-u00 26 cm/s 24h 279 -0.133 0.192 0.139 0.0 85.3 0.0 0.0 0.0 

U06-u06 26 cm/s 24h 281 -0.136 0.193 0.137 0.0 85.8 0.0 0.0 0.0 

U12-u12 26 cm/s 24h 284 -0.139 0.195 0.137 0.4 84.2 0.0 0.0 0.0 

U18-u18 26 cm/s 24h 279 -0.140 0.193 0.134 0.0 83.9 0.0 0.0 0.0 

U24-u24 26 cm/s 24h 277 -0.141 0.192 0.130 0.0 83.8 0.0 0.0 0.0 

AFC-afc 26 cm/s 24h 36 -0.181 0.184 0.035 0.0 94.4 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 152 -0.183 0.194 0.062 0.0 89.5 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 36 -0.422 0.591 0.419 5.6 52.8 0.0 0.0 0.0 

TEC-tec 0.50h 25h 152 -0.672 0.820 0.473 24.3 38.8 0.0 48.7 0.0 

TSF-tsf 0.25h 25h 33 -0.202 0.319 0.250 0.0 87.9 0.0 0.0 0.0 

TEF-tef 0.25h 25h 33 -0.293 0.415 0.298 0.0 72.7 0.0 0.0 0.0 

TSE-tse 0.25h 25h 146 -0.463 0.521 0.240 1.4 56.2 0.0 0.0 0.0 

TEE-tee 0.25h 25h 146 -0.581 0.636 0.260 0.7 28.1 0.7 0.0 0.0 

Station: Brown Shoal Light 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 2.18 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

U 24680 0.493 

u 24680 0.504 

U-u 26 cm/s 24h 24680 -0.011 0.143 0.143 0.7 95.4 0.5 1.7 3.1 0.90 

AFC-afc 26 cm/s 24h 169 -0.047 0.089 0.076 0.0 98.2 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 149 -0.013 0.110 0.110 0.0 98.0 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 169 -0.589 0.861 0.630 21.9 40.2 1.2 49.4 0.0 

TEC-tec 0.50h 25h 149 -0.115 0.623 0.615 8.1 52.3 2.7 11.9 0.0 

TSF-tsf 0.25h 25h 146 -0.025 0.336 0.336 0.0 85.6 0.0 0.0 0.0 

TEF-tef 0.25h 25h 148 -0.008 0.427 0.428 0.7 90.5 0.7 0.0 0.0 

TSE-tse 0.25h 25h 137 -0.396 0.622 0.481 5.8 56.9 0.7 0.0 0.0 

TEE-tee 0.25h 25h 138 -0.225 0.547 0.500 1.4 77.5 0.7 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

U00-u00 26 cm/s 24h 251 -0.007 0.126 0.126 0.0 96.4 0.0 0.0 0.0 

U06-u06 26 cm/s 24h 254 0.002 0.124 0.124 0.0 96.9 0.4 0.0 0.0 

U12-u12 26 cm/s 24h 251 0.001 0.127 0.127 0.0 96.8 0.4 0.0 0.0 

U18-u18 26 cm/s 24h 250 0.000 0.123 0.123 0.0 97.2 0.0 0.0 0.0 

U24-u24 26 cm/s 24h 247 0.009 0.146 0.146 0.0 96.0 0.4 0.0 0.0 

AFC-afc 26 cm/s 24h 132 -0.050 0.089 0.073 0.0 98.5 0.0 0.0 0.0 

AEC-aec 26 cm/s 24h 120 0.000 0.107 0.107 0.0 98.3 0.0 0.0 0.0 

TFC-tfc 0.50h 25h 132 -0.589 0.843 0.606 22.0 37.1 0.8 25.1 0.0 

TEC-tec 0.50h 25h 120 -0.129 0.634 0.624 10.0 60.8 1.7 12.1 0.0 

TSF-tsf 0.25h 25h 117 -0.035 0.389 0.389 0.9 85.5 0.0 0.0 0.0 

TEF-tef 0.25h 25h 120 0.016 0.454 0.456 0.8 88.3 2.5 0.0 0.0 

TSE-tse 0.25h 25h 107 -0.360 0.648 0.542 6.5 61.7 1.9 0.0 0.0 

TEE-tee 0.25h 25h 109 -0.171 0.577 0.554 1.8 78.9 0.9 0.0 0.0 
- 106 -
- 107 -

APPENDIX H. Skill Assessment Scores of Current Direction: Nowcast/Forecast 

Station: Philadelphia 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

D 25200 116.125 

d 25200 126.914 

D-d 22.5 dg 24h 25200 -5.299 24.505 23.926 0.0 98.3 1.7 0.1 4.6 0.90 

DFC-dfc 22.5 dg 24h 41 -8.321 8.345 0.648 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 192 -11.644 11.665 0.711 0.0 100.0 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

D00-d00 22.5 dg 24h 279 -8.508 20.729 18.936 0.0 98.9 1.1 0.0 0.0 

D06-d06 22.5 dg 24h 281 -8.578 20.614 18.778 0.0 98.9 1.1 0.0 0.0 

D12-d12 22.5 dg 24h 284 -9.237 17.841 15.291 0.0 99.3 0.7 0.0 0.0 

D18-d18 22.5 dg 24h 279 -9.819 14.848 11.157 0.0 99.6 0.4 0.0 0.0 

D24-d24 22.5 dg 24h 277 -9.876 14.724 10.941 0.0 99.6 0.4 0.0 0.0 

DFC-dfc 22.5 dg 24h 36 -8.549 8.582 0.764 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 152 -11.579 11.603 0.737 0.0 100.0 0.0 0.0 0.0 

Station: Brown Shoal Light 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010with gaps of 2.18 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

D 24680 233.956 

d 24680 227.245 

D-d 22.5 dg 24h 24680 -3.238 19.049 18.772 0.4 97.1 0.8 1.7 2.1 0.87 

DFC-dfc 22.5 dg 24h 169 -6.427 7.482 3.843 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 149 -6.455 8.725 5.890 0.0 100.0 0.0 0.0 0.0 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

D00-d00 22.5 dg 24h 251 -4.437 14.304 13.625 0.0 98.4 0.8 0.0 0.0 

D06-d06 22.5 dg 24h 254 -4.508 15.294 14.643 0.0 97.2 0.8 0.0 12.0 

D12-d12 22.5 dg 24h 251 -4.576 15.225 14.550 0.0 98.4 0.8 0.0 12.0 

D18-d18 22.5 dg 24h 250 -4.071 18.788 18.378 0.0 98.8 1.2 0.0 24.0 

D24-d24 22.5 dg 24h 247 -3.316 21.683 21.471 0.0 97.6 1.6 0.0 30.0 

DFC-dfc 22.5 dg 24h 132 -6.669 7.563 3.582 0.0 100.0 0.0 0.0 0.0 

DEC-dec 22.5 dg 24h 120 -6.809 8.982 5.883 0.0 100.0 0.0 0.0 0.0 
- 108 -
- 109 -

APPENDIX I. Skill Assessment Scores of Salinity Hindcast 

Station: SALT_002 

Observed data time period from: / 4/24/1984 to /12/ 2/1984 with gaps of 68.69 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 36732 30.174 

s 36732 29.646 

S-s 3.5 24h 36732 0.528 1.418 1.316 0.0 96.0 0.0 0.0 0.0 0.47 

Station: SALT_003 

Observed data time period from: / 4/ 3/1984 to /11/21/1984 with gaps of 137.96 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 22513 30.657 

s 22513 29.832 

S-s 3.5 24h 22513 0.825 1.741 1.533 0.0 94.8 0.0 0.0 0.0 0.37 

Station: SALT_005 

Observed data time period from: / 4/ 3/1984 to /11/21/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 32330 30.080 

s 32330 28.964 

S-s 3.5 24h 32330 1.116 2.923 2.702 0.0 77.0 1.0 0.0 3.1 0.31 

Station: SALT_011 

Observed data time period from: /11/ 4/1984 to /11/19/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 3592 32.642 

s 3592 31.724 

S-s 3.5 24h 3592 0.918 0.971 0.316 0.0 100.0 0.0 0.0 0.0 0.26 

Station: SALT_012 

Observed data time period from: /10/20/1984 to /11/19/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 7261 32.846 

s 7261 32.836 

S-s 3.5 24h 7261 0.011 0.361 0.361 0.0 100.0 0.0 0.0 0.0 0.34 
- 110 -

Station: SALT_016 

Observed data time period from: / 3/ 8/1984 to /11/27/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 63528 31.937 

s 63528 31.328 

S-s 3.5 24h 63528 0.609 0.911 0.677 0.0 100.0 0.0 0.0 0.0 0.52 

Station: SALT_018 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 7231 27.139 

s 7231 26.877 

S-s 3.5 24h 7231 0.262 2.426 2.412 0.0 87.9 0.0 0.0 0.0 0.33 

Station: SALT_020 

Observed data time period from: / 9/18/1984 to /10/10/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 5187 25.691 

s 5187 27.736 

S-s 3.5 24h 5187 -2.045 4.650 4.176 12.7 48.8 0.0 4.5 0.0 0.16 

Station: SALT_021 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 7211 24.852 

s 7211 26.274 

S-s 3.5 24h 7211 -1.422 5.014 4.808 2.8 70.6 2.9 1.4 0.4 0.18 

Station: SALT_022 

Observed data time period from: / 5/ 9/1984 to /10/18/1984 with gaps of 67.41 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 22720 25.757 

s 22720 26.139 

S-s 3.5 24h 22720 -0.382 3.541 3.520 2.0 63.7 0.5 3.6 1.6 0.32 
- 111 -

Station: SALT_023 

Observed data time period from: / 3/ 8/1984 to /11/28/1984 with gaps of 55.17 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 50364 27.201 

s 50364 25.751 

S-s 3.5 24h 50364 1.450 2.795 2.389 0.0 82.3 3.8 0.0 10.1 0.63 

Station: SALT_024 

Observed data time period from: / 5/ 9/1984 to /10/18/1984 with gaps of 68.08 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 22599 21.704 

s 22599 19.607 

S-s 3.5 24h 22599 2.097 8.865 8.614 1.5 58.4 21.5 2.1484.7 0.43 

Station: SALT_033 

Observed data time period from: / 3/ 8/1984 to / 9/11/1984 with gaps of 17.26 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 40786 11.590 

s 40786 13.717 

S-s 3.5 24h 40786 -2.127 4.957 4.477 13.3 46.3 3.0 21.3 4.3 0.51 

Station: SALT_047 

Observed data time period from: / 6/14/1984 to / 4/ 2/1985 with gaps of 256.05 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 7220 0.000 

s 7220 0.004 

S-s 3.5 24h 7220 -0.004 0.012 0.011 0.0 100.0 0.0 0.0 0.0 0.29 

Station: SALT_050 

Observed data time period from: / 3/22/1984 to / 4/ 6/1984 with gaps of 256.05 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 3453 0.000 

s 3453 0.000 

S-s 3.5 24h 3453 0.000 0.000 0.000 0.0 100.0 0.0 0.0 0.0 0.00 
- 112 -

Station: SALT_051 

Observed data time period from: / 3/ 6/1984 to / 4/ 2/1985 with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 50897 0.072 

s 50897 -0.016 

S-s 3.5 24h 50897 0.088 0.173 0.148 0.0 100.0 0.0 0.0 0.0 0.10 

Station: SALT_052 

Observed data time period from: / 3/ 6/1984 to / 4/ 6/1984 with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 7397 0.000 

s 7397 -0.015 

S-s 3.5 24h 7397 0.015 0.021 0.015 0.0 100.0 0.0 0.0 0.0 0.51 

Station: SALT_053 

Observed data time period from: / 3/ 6/1984 to / 3/22/1984 with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 3822 0.000 

s 3822 0.000 

S-s 3.5 24h 3822 0.000 0.000 0.000 0.0 100.0 0.0 0.0 0.0 0.00 

Station: SALT_054 

Observed data time period from: / 3/ 6/1984 to / 3/26/1984 with gaps of 147.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 4789 0.000 

s 4789 -0.076 

S-s 3.5 24h 4789 0.076 0.081 0.027 0.0 100.0 0.0 0.0 0.0 0.32 

Station: SALT_154 

Observed data time period from: / 6/20/1984 to / 4/ 2/1985 with gaps of 115.87 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

S 32939 3.646 

s 32939 6.388 

S-s 3.5 24h 32939 -2.742 9.033 8.607 13.4 71.9 5.7 438.0188.1 0.53 
- 113 -

APPENDIX J. Skill Assessment Scores of Salinity Nowcast/Forecast 

Station: Ship John Shoal 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

S 25201 10.468 

s 25201 14.520 

S-s 3.5 24h 25201 -4.053 4.808 2.587 15.7 52.4 0.0 61.4 0.0 0.76 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

S00-s00 3.5 24h 353 -4.327 5.067 2.641 18.1 48.4 0.0 156.0 0.0 

S06-s06 3.5 24h 352 -4.311 5.035 2.604 16.5 49.1 0.0 120.0 0.0 

S12-s12 3.5 24h 351 -4.337 5.063 2.616 17.4 47.6 0.0 120.0 0.0 

S18-s18 3.5 24h 350 -4.346 5.069 2.614 17.4 47.7 0.0 132.0 0.0 

S24-s24 3.5 24h 349 -4.366 5.090 2.621 18.3 47.6 0.0 156.0 0.0 

Station: BURLINGTON, DELAWARE RIVER 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

S 25201 0.000 

s 25201 0.030 

S-s 3.5 24h 25201 -0.030 0.047 0.036 0.0 100.0 0.0 0.0 0.0 0.39 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

S00-s00 3.5 24h 353 -0.032 0.051 0.040 0.0 100.0 0.0 0.0 0.0 

S06-s06 3.5 24h 352 -0.028 0.044 0.035 0.0 100.0 0.0 0.0 0.0 

S12-s12 3.5 24h 351 -0.028 0.044 0.034 0.0 100.0 0.0 0.0 0.0 

S18-s18 3.5 24h 350 -0.028 0.044 0.034 0.0 100.0 0.0 0.0 0.0 

S24-s24 3.5 24h 349 -0.027 0.043 0.034 0.0 100.0 0.0 0.0 0.0 

Station: BRANDYWINE SHOAL LIGHT, DELAWARE BAY 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

S 25201 28.553 

s 25201 19.687 

S-s 3.5 24h 25201 8.867 12.461 8.756 4.2 3.7 73.2 41.9***** 0.51 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

S00-s00 3.5 24h 353 8.282 12.214 8.990 4.8 5.9 70.5 36.0480.0 

S06-s06 3.5 24h 352 8.359 12.250 8.968 5.1 5.4 70.7 42.0474.0 

S12-s12 3.5 24h 351 8.310 12.229 8.985 5.1 5.4 70.7 42.0468.0 

S18-s18 3.5 24h 350 8.283 12.210 8.984 5.1 5.7 70.3 42.0462.0 

S24-s24 3.5 24h 349 8.271 12.203 8.985 5.2 5.7 70.5 42.0456.0 

Note the MDPO is greater than 1000 hours due to the biological fouling of the CT sensor at 

this location. 
- 114 -
- 115 -

APPENDIX K. Skill Assessment Scores of Temperature Hindcast 

Station: TEMP_002 

Observed data time period from: / 4/24/1984 to /12/ 2/1984 with gaps of 68.69 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 36732 18.560 

t 36732 14.634 

T-t 3.0 c 24h 36732 3.926 4.411 2.011 0.0 35.0 13.0 0.0 73.5 0.74 

Station: TEMP_003 

Observed data time period from: / 4/ 3/1984 to /11/21/1984 with gaps of 137.96 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 22513 17.577 

t 22513 14.275 

T-t 3.0 c 24h 22513 3.302 4.081 2.398 0.0 56.6 15.0 0.0 72.6 0.88 

Station: TEMP_005 

Observed data time period from: / 4/ 3/1984 to /11/21/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 32330 17.311 

t 32330 14.293 

T-t 3.0 c 24h 32330 3.017 3.760 2.244 0.0 58.3 9.9 0.0 23.7 0.87 

Station: TEMP_011 

Observed data time period from: /11/ 4/1984 to /11/19/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 3592 18.768 

t 3592 14.745 

T-t 3.0 c 24h 3592 4.023 4.058 0.536 0.0 0.0 0.0 0.0 0.0 0.40 

Station: TEMP_012 

Observed data time period from: /10/20/1984 to /11/19/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 7261 19.406 

t 7261 15.981 

T-t 3.0 c 24h 7261 3.424 3.446 0.390 0.0 15.9 0.0 0.0 0.0 0.46 
- 116 -

Station: TEMP_016 

Observed data time period from: / 3/ 8/1984 to /11/27/1984 with gaps of 97.10 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 63528 17.813 

t 63528 13.850 

T-t 3.0 c 24h 63528 3.963 5.270 3.474 0.0 45.2 15.3 0.0582.3 0.83 

Station: TEMP_017 

Observed data time period from: / 4/17/1984 to /10/ 9/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 28673 18.324 

t 28673 15.342 

T-t 3.0 c 24h 28673 2.982 3.501 1.834 0.0 45.0 4.3 0.0 36.8 0.85 

Station: TEMP_018 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 7231 21.319 

t 7231 18.194 

T-t 3.0 c 24h 7231 3.126 3.205 0.708 0.0 51.2 0.0 0.0 0.0 0.62 

Station: TEMP_019 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 7206 21.911 

t 7206 18.459 

T-t 3.0 c 24h 7206 3.452 3.482 0.454 0.0 16.7 0.0 0.0 0.0 0.58 

Station: TEMP_020 

Observed data time period from: / 9/18/1984 to /10/10/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 5187 21.699 

t 5187 18.291 

T-t 3.0 c 24h 5187 3.409 3.508 0.831 0.0 32.9 0.0 0.0 0.0 0.62 
- 117 -

Station: TEMP_021 

Observed data time period from: / 9/18/1984 to /10/18/1984 with gaps of 55.38 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 7211 20.811 

t 7211 18.136 

T-t 3.0 c 24h 7211 2.675 2.915 1.159 0.0 73.3 0.6 0.0 0.5 0.68 

Station: TEMP_022 

Observed data time period from: / 5/ 9/1984 to /10/18/1984 with gaps of 67.41 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 22720 21.395 

t 22720 17.222 

T-t 3.0 c 24h 22720 4.174 4.757 2.284 0.0 34.2 20.6 0.0 9.0 0.70 

Station: TEMP_023 

Observed data time period from: / 3/ 8/1984 to /11/28/1984 with gaps of 55.17 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 50364 17.246 

t 50364 14.691 

T-t 3.0 c 24h 50364 2.554 3.096 1.750 0.0 70.3 6.7 0.0 36.4 0.95 

Station: TEMP_024 

Observed data time period from: / 5/ 9/1984 to /10/18/1984 with gaps of 68.08 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 22599 21.751 

t 22599 18.692 

T-t 3.0 c 24h 22599 3.058 3.326 1.306 0.0 58.4 3.3 0.0 8.1 0.82 

Station: TEMP_033 

Observed data time period from: / 3/ 8/1984 to / 9/11/1984 with gaps of 17.26 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 40786 19.279 

t 40786 17.317 

T-t 3.0 c 24h 40786 1.962 2.279 1.159 0.0 81.3 0.0 0.0 0.0 0.98 
- 118 -

Station: TEMP_047 

Observed data time period from: / 6/14/1984 to / 4/ 2/1985 with gaps of 256.05 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 7220 25.471 

t 7220 24.034 

T-t 3.0 c 24h 7220 1.438 1.587 0.673 0.0 99.3 0.0 0.0 0.0 0.42 

Station: TEMP_050 

Observed data time period from: / 3/22/1984 to / 4/ 6/1984 with gaps of 256.05 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 3453 7.715 

t 3453 6.605 

T-t 3.0 c 24h 3453 1.110 1.349 0.767 0.0 100.0 0.0 0.0 0.0 0.49 

Station: TEMP_051 

Observed data time period from: / 3/ 6/1984 to / 4/ 2/1985 with gaps of 279.55 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 19085 18.805 

t 19085 16.724 

T-t 3.0 c 24h 19085 2.081 3.223 2.462 0.0 67.1 11.2 0.0 92.5 0.96 

Station: TEMP_052 

Observed data time period from: / 3/ 6/1984 to / 4/ 6/1984 with gaps of 279.55 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 7397 5.884 

t 7397 5.128 

T-t 3.0 c 24h 7397 0.756 1.134 0.846 0.0 100.0 0.0 0.0 0.0 0.93 

Station: TEMP_054 

Observed data time period from: / 3/ 6/1984 to / 3/26/1984 with gaps of 279.55 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 4789 6.181 

t 4789 4.581 

T-t 3.0 c 24h 4789 1.600 1.925 1.071 0.0 88.1 0.0 0.0 0.0 0.73 
- 119 -

Station: TEMP_154 

Observed data time period from: / 9/27/1984 to / 4/ 2/1985 with gaps of 93.87 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: HINDCAST 

T 14552 15.776 

t 14552 13.309 

T-t 3.0 c 24h 14552 2.466 3.953 3.090 0.0 71.2 20.3 0.0274.0 0.77 
- 120 -
- 121 -

APPENDIX L. Skill Assessment Scores of Temperature Nowcast/Forecast 

Station: CAPE MAY CANAL,DELAWARE BAY 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 19.455 

t 25201 18.239 

T-t 3.0 c 24h 25201 1.216 2.958 2.697 0.7 76.0 3.0 7.0 7.2 0.91 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 1.188 2.645 2.367 0.0 77.1 2.8 0.0 6.0 

T06-t06 3.0 c 24h 352 1.140 2.559 2.295 0.0 77.0 2.6 0.0 6.0 

T12-t12 3.0 c 24h 351 1.108 2.516 2.262 0.0 77.2 2.3 0.0 0.0 

T18-t18 3.0 c 24h 350 1.058 2.445 2.207 0.0 76.6 1.4 0.0 0.0 

T24-t24 3.0 c 24h 349 0.997 2.398 2.183 0.0 79.1 1.7 0.0 0.0 

Station: Ship John Shoal 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 19.088 

t 25201 19.313 

T-t 3.0 c 24h 25201 -0.225 3.125 3.117 9.0 81.8 0.2 115.6 3.4 0.94 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 -0.064 2.805 2.808 7.4 80.7 0.0 66.0 0.0 

T06-t06 3.0 c 24h 352 -0.082 2.765 2.768 7.4 81.8 0.0 60.0 0.0 

T12-t12 3.0 c 24h 351 -0.084 2.721 2.724 8.3 82.3 0.0 66.0 0.0 

T18-t18 3.0 c 24h 350 -0.051 2.696 2.699 7.4 82.9 0.0 60.0 0.0 

T24-t24 3.0 c 24h 349 -0.071 2.689 2.692 7.4 82.2 0.0 54.0 0.0 

Station: BURLINGTON, DELAWARE RIVER 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 20.184 

t 25201 20.223 

T-t 3.0 c 24h 25201 -0.039 2.459 2.459 2.9 94.0 0.0 64.9 0.0 0.96 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 0.352 1.311 1.264 0.6 94.9 0.0 0.0 0.0 

T06-t06 3.0 c 24h 352 0.229 1.119 1.097 0.6 96.9 0.0 0.0 0.0 

T12-t12 3.0 c 24h 351 0.244 0.854 0.820 0.0 97.2 0.0 0.0 0.0 

T18-t18 3.0 c 24h 350 0.225 0.872 0.844 0.0 97.4 0.0 0.0 0.0 

T24-t24 3.0 c 24h 349 0.186 0.765 0.743 0.0 98.3 0.0 0.0 0.0 
- 122 -

Station: PHILADELPHIA, PA 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 19.721 

t 25201 20.377 

T-t 3.0 c 24h 25201 -0.656 3.683 3.624 7.2 90.3 0.0 152.0 0.0 0.92 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 -0.386 3.103 3.083 5.9 92.1 0.0 102.0 0.0 

T06-t06 3.0 c 24h 352 -0.412 3.001 2.977 5.7 92.3 0.0 96.0 0.0 

T12-t12 3.0 c 24h 351 -0.389 2.894 2.872 5.4 92.9 0.0 90.0 0.0 

T18-t18 3.0 c 24h 350 -0.358 2.790 2.771 4.9 93.4 0.0 84.0 0.0 

T24-t24 3.0 c 24h 349 -0.345 2.670 2.651 4.9 93.7 0.0 78.0 0.0 

Station: Newbold, PA 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 20.586 

t 25201 20.618 

T-t 3.0 c 24h 25201 -0.032 1.869 1.869 1.2 94.7 0.0 26.7 0.0 0.98 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 0.146 1.113 1.105 0.0 96.0 0.0 0.0 0.0 

T06-t06 3.0 c 24h 352 -0.061 0.992 0.992 0.0 98.0 0.0 0.0 0.0 

T12-t12 3.0 c 24h 351 -0.089 1.006 1.004 0.0 98.3 0.0 0.0 0.0 

T18-t18 3.0 c 24h 350 -0.154 1.009 0.998 0.0 98.0 0.0 0.0 0.0 

T24-t24 3.0 c 24h 349 -0.206 1.041 1.022 0.0 98.3 0.0 0.0 0.0 

Station: Delaware City, DE 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 18.578 

t 25201 20.493 

T-t 3.0 c 24h 25201 -1.915 4.439 4.005 15.0 75.4 0.0 238.6 0.0 0.89 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 -1.668 4.109 3.761 14.2 77.9 0.0 162.0 0.0 

T06-t06 3.0 c 24h 352 -1.663 4.073 3.723 13.9 78.4 0.0 156.0 0.0 

T12-t12 3.0 c 24h 351 -1.656 4.017 3.664 14.2 78.6 0.0 288.0 0.0 

T18-t18 3.0 c 24h 350 -1.597 3.935 3.602 13.7 79.7 0.0 222.0 0.0 

T24-t24 3.0 c 24h 349 -1.615 3.920 3.578 14.0 79.9 0.0 216.0 0.0 
- 123 -

Station: BRANDYWINE SHOAL LIGHT, DELAWARE BAY 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 19.694 

t 25201 16.602 

T-t 3.0 c 24h 25201 3.092 3.576 1.797 0.0 52.5 4.5 0.0 8.3 0.88 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 3.028 3.443 1.641 0.0 52.4 4.5 0.0 0.0 

T06-t06 3.0 c 24h 352 2.878 3.255 1.523 0.0 55.7 3.1 0.0 6.0 

T12-t12 3.0 c 24h 351 2.852 3.227 1.512 0.0 57.0 2.6 0.0 0.0 

T18-t18 3.0 c 24h 350 2.840 3.213 1.505 0.0 57.4 2.9 0.0 0.0 

T24-t24 3.0 c 24h 349 2.802 3.172 1.488 0.0 58.5 2.6 0.0 0.0 

Station: LEWES,FT MILES DE 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.00 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25201 21.877 

t 25201 16.851 

T-t 3.0 c 24h 25201 5.026 5.914 3.117 0.0 26.3 26.9 0.0260.1 0.72 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 353 4.945 5.636 2.708 0.0 21.5 26.9 0.0234.0 

T06-t06 3.0 c 24h 352 4.426 5.100 2.536 0.0 30.4 21.9 0.0180.0 

T12-t12 3.0 c 24h 351 4.302 4.972 2.498 0.0 33.0 21.1 0.0174.0 

T18-t18 3.0 c 24h 350 4.252 4.920 2.479 0.0 33.7 20.9 0.0168.0 

T24-t24 3.0 c 24h 349 4.117 4.762 2.398 0.0 38.1 19.8 0.0156.0 

Station: CHESAPEAKE CITY 

Observed data time period from: / 4/ 1/2010 to / 7/15/2010 with gaps of 0.58 days 

Data gap is filled using SVD method 

Data are not filtered 

------------------------------------------------------------------------------------------- 

VARIABLE X N IMAX SM RMSE SD NOF CF POF MDNO MDPO WOF SKILL 

CRITERION - - - - - - <1% >90% <1% <N <N <.5% 

------------------------------------------------------------------------------------------- 

 SCENARIO: SEMI-OPERATIONAL NOWCAST 

T 25064 20.524 

t 25064 21.460 

T-t 3.0 c 24h 25064 -0.936 2.889 2.733 5.2 90.4 0.1 14.0 3.0 0.94 

 SCENARIO: SEMI-OPERATIONAL FORECAST 

T00-t00 3.0 c 24h 351 -0.828 2.415 2.272 4.6 92.0 0.3 24.0 0.0 

T06-t06 3.0 c 24h 350 -0.918 2.403 2.224 4.6 91.7 0.3 18.0 0.0 

T12-t12 3.0 c 24h 349 -0.864 2.337 2.175 4.0 92.8 0.3 24.0 0.0 

T18-t18 3.0 c 24h 348 -0.822 2.220 2.065 3.4 92.2 0.3 24.0 0.0 

T24-t24 3.0 c 24h 347 -0.937 2.331 2.137 3.7 91.9 0.3 12.0 0.0