NASA/TMm2000-209891, Vol. 119

Technical Report Series on the

Boreal Ecosystem-Atmosphere Study (BOREAS)

Forrest G. Hall and David E. Knapp, Editors

Volume 119

BOREAS AES READAC

Surface Meteorological Data

G. Barrie Atkinson and Barry Funk

Environment Canada, Winnipeg, Manitoba, Canada

National Aeronautics and

Space Administration

Goddard Space Flight Center

Greenbelt, Maryland 20771

September 2000

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NASA/TMm2000-209891, Vol. 119

Technical Report Series on the

Boreal Ecosystem-Atmosphere Study (BOREAS)

Forrest G. Hall and David E. Knapp, Editors

Volume 119

BOREAS AES READAC

Surface Meteorological Data

G. Barrie Atkinson and Barry Funk

Environment Canada, Winnipeg, Manitoba, Canada

National Aeronautics and

Space Administration

Goddard Space Flight Center

Greenbelt, Maryland 20771

September 2000
NASA Center for AeroSpace Information

7121 Standard Drive

Hanover, MD 21076-1320

Price Code: A17

Available from:

National Technical Information Service

5285 Port Royal Road

Springfield, VA 22161

Price Code: A10
BOREAS AES READAC Surface Meteorological Data

G. Barrie Atkinson, Barry Funk

Summary

Canadian AES personnel collected and processed data related to surface atmospheric meteorological

conditions over the BOREAS region. This data set contains 15-minute meteorological data from one

READAC meteorology station in Hudson Bay, Saskatchewan. Parameters include day, time, type of

report, sky condition, visibility, mean sea level pressure, temperature, dewpoint, wind, altimeter,

opacity, minimum and maximum visibility, station pressure, minimum and maximum air temperature,

a wind group, precipitation, and precipitation in the last hour. The data were collected

non-continuously from 24-May-1994 to 20-Sep-1994. The data are provided in tabular ASCII files,

and are classified as AFM-Staff data.

Table of Contents

1) Data Set Overview

2) Investigator(s)

3) Theory of Measurements

4) Equipment

5) Data Acquisition Methods

6) Observations

7) Data Description

8) Data Organization

9) Data Manipulations

10) Errors

11) Notes

12) Application of the Data Set

13) Future Modifications and Plans

14) Software

15) Data Access

16) Output Products and Availability

17) References

18) Glossary of Terms

19) List of Acronyms

20) Document Information

1. Data Set Overview

1.1 Data Set Identification

BOREAS AES READAC Surface Meteorological Data

1.2 Data Set Introduction

This data set contains 15-minute meteorological data from one Remote Environmental Automated

Data Acquisition Concept (READAC) meteorology station in the BOReal Ecosystem-Atmosphere

Study (BOREAS) region in Canada. Parameters include day, time, type of report, sky condition,

visibility, mean sea level pressure, temperature, dewpoint, wind, altimeter, opacity, minimum and

maximum visibility, station pressure, minimum and maximum air temperature, a wind group,

precipitation, and precipitation in the last hour.

Page 1
1.3 Objective/Purpose

These monitoring sites were established by Environment Canada to provide hourly weather

reports, input to the operational program of forecasts and warnings, input to operational weather

prediction models, and climate data. The frequency of observation was increased to 15 minutes at the

request of BOREAS. Data collection for BOREAS occurred during Intensive Field Campaigns (IFCs)

1, 2, and 3.

1.4 Summary of Parameters

Included parameters are day, time, type of report, sky condition, visibility, mean sea level

pressure, temperature, dewpoint, wind, altimeter, opacity, minimum and maximum visibility, station

pressure, minimum and maximum air temperature, wind group, precipitation, and precipitation in the

last hour.

1.5 Discussion

This station was installed before BOREAS began in order to meet the goals of Environment

Canada, and it conforms to Environment Canada's criteria for accuracy and exposure.

1.6 Related Data Sets

BOREAS AFM-07 SRC Surface Meteorological Data

BOREAS AES MARSII Surface Meteorological Data

BOREAS AES Campbell Scientific Surface Meteorological Data

2. Investigator(s)

2.1 Investigator(s) Name and Title

G. Barrie Atkinson BOREAS AES Project Scientist

2.2 Title of Investigation

Environment Canada 15-Minute Autostation Data

2.3 Contact Information

Contact 1:

G. Barrie Atkinson (Retired)

BOREAS AES Project Scientist

Environment Canada

1000 - 266 Graham Avenue

Winnipeg, Manitoba

Canada R3C 3V4

(204) 983-6059

(204) 983-4884 (fax)

Contact 2:

Barry Funk

Supervisor, Special Programs

Environment Canada

1000 - 266 Graham Avenue

Winnipeg, Manitoba

Canada R3C 3V4

(204) 983-2018

(204) 984-2072 (fax)

Barry.Funk@gc.ec.ca

Page 2
Contact 3:

David Knapp

Raytheon ITSS

NASA GSFC

Code 923

Greenbelt, MD 20771

(301) 286-0544

(301) 286-0239 (fax)

David.Knapp@ gsfc.nasa.gov

None given.

3. Theory of Measurements

4. Equipment

4.1 Sensor/Instrument Description

Parameter

Pressure

Cloud

Visibility

Temperature

Dewcel Probe

Radiation Shield

Precipitation

Wind

Instrumentation

Sentra 270 (2) -- the two are compared for each reading.

Model 8329A Qualimetrics laser ceilometer

Belfort 6200

YSI READAC thermister

AES type E

Wooden Stevenson screen with wooden stand

Height 119 cm

Weighing gauge (Fisher and Porter)

Height 194 cm

Alter shield 196 cm

Direction 78D

Speed detector 78D

Cupwheel height 10 m -- tower tilting

4.1.1 Collection Environment

The instruments operated during the summer of 1994 in the environmental conditions shown in the

data.

4.1.2 Source/Platform

None given.

4.1.3 Source/Platform Mission Objectives

None given.

4.1.4 Key Variables

Temperature, pressure, humidity, wind.

4.1.5 Principles of Operation

None given.

4.1.6 Sensor/Instrument Measurement Geometry

None given.

Page 3
4.1.7 Manufacturer of Sensor/Instrument

None given.

4.2 Calibration

4.2.1 Specifications

None given.

4.2.1.1 Tolerance

None given.

4.2.2 Frequency of Calibration

None given.

4.2.3 Other Calibration Information

None given.

5. Data Acquisition Methods

Since there is no provision for onboard storage of observations, the station was telephoned

approximately every 15 minutes from a computer in Winnipeg and the data were downloaded.

6.1 Data Notes

None given.

6.2 Field Notes

ILocation

I[ZHB Hudson Bay,

IISaskatchewan (SK)

6. Observations

Date of Visit Actions During Visit

Installation

21-Jun- 1992

All instruments were verified after installation. The average differences

from the inspection were: barometer was -0.01 mh for 10 readings; dry

bulb temperature, -0.1 degrees C for 10 readings; dewpoint +0.46

degrees C for 10 readings. The Fisher and Porter weighing gauge was

tested at 25-ram increments over the range 0-300 ram. The difference

ranged from +1.2 mm to -0.8 mm with an average of +0.05 ram.

7. Data Description

7.1 Spatial Characteristics

7.1.1 Spatial Coverage

The following description of the Hudson Bay site gives latitude and longitude coordinates as

degrees and minutes under the North American Datum of 1983 (NAD83).

Page 4
ZHB Hudson Bay SK

The Hudson Bay site (ZHB) is located at a latitude of 52 degrees, 49 minutes N; at a longitude of

102 degrees, 19 minutes W; and at an elevation of 358.1 meters. The site is located at the Hudson Bay

airport, approximately 5 km south of the town of Hudson Bay, SK. The instruments are located in the

75-m (northwest to southeast) by 60-m (southwest to northeast) instrument area of the formerly

manned weather station. The instrument area is level and grassed, with open exposure in all directions.

The surrounding countryside is generally flat and forested. The Red Deer River is located

approximately 0.7 km to the south. The airport is located in the shallow valley of the Red Deer River,

which runs generally southwest to northeast. The valley is paralleled to the south by the Porcupine

Hills, which rise to a height of 760 m above sea level approximately 48 km southeast, and to the north

by the Pasquia Hills, which achieve a height of 817 m approximately 48 km northwest.

7.1.2 Spatial Coverage Map

Not available.

7.1.3 Spatial Resolution

These data were collected at a point location.

7.1.4 Projection

Not applicable.

7.1.5 Grid Description

Not applicable.

7.2 Temporal Characteristics

7.2.1 Temporal Coverage

Data are available from 24-May-1994 to 25-Jun-1994 and from 19-Jul-1994 to 20-Sep-1994.

7.2.2 Temporal Coverage Map

Not available.

7.2.3 Temporal Resolution

Data were collected approximately every 15 minutes.

7.3 Data Characteristics

7.3.1 Parameter/Variable

The parameters contained in the data files on the CD-ROM are:

Column Name

SITE NAME

SUB SITE

DATE OBS

TIME OBS

REPORT

SKY COVER

VISIBILITY

AIR TEMP 1 5M

DEW TEMP 1 5M

MEAN WIND 10M 2MIN

ALTIMETER

OPACITY

Page 5
VISIBILITY MIN MAX

STN PRESS

AIR TEMP MIN

AIR TEMP MAX

WIND GROUP 10M

ACCUM PRECIP

PRECIP LAST HOUR

CRTFCN CODE

REVISION DATE

7.3.2 Variable Description/Definition

The descriptions of the parameters contained in the data files on the CD-ROM are:

Column Name Description

SITE NAME

SUB SITE

DATE OBS

TIME OBS

REPORT

SKY COVER

VISIBILITY

AIR TEMP 1 5M

DEW TEMP 1 5M

MEAN WIND 10M 2MIN

ALTIMETER

OPACITY

VISIBILITY MIN MAX

The identifier assigned to the site by BOREAS,

in the format SSS-TTT-CCCCC, where SSS identifies

the portion of the study area: NSA, SSA, REG,

TRN, and TTT identifies the cover type for the

site, 999 if unknown, and CCCCC is the identifier

for site, exactly what it means will vary with

site type.

The identifier assigned to the sub-site by

BOREAS, in the format GGGGG-IIIII, where GGGGG is

the group associated with the sub-site

instrument, e.g. HYD06 or STAFF, and IIIII is the

identifier for sub-site, often this will refer to

an instrument.

The date on which the data were collected.

The Greenwich Mean Time (GMT) when the data were

collected.

The report type. Regular (SA) or special (SP) .

The sky condition in hundreds of feet, up to

four cloud layers and up to one surface layer.

The Meteorological Optical Range. A V may be

appended if visibility is variable.

The instantaneous air temperature at a height of

1.5 meters above the surface.

The instantaneous dewpoint temperature at a

height of 1.5 meters above the surface.

The first two digits denote the two minute mean

true wind direction in tens of degrees at a

height of ten meters above the surface. The next

two or three digits denote the two minute mean

wind speed in knots at a height of ten meters

above the surface.

The altimeter reading.

The summation (cumulative) opacity. Percentage

in each layer reported. For example, 1246 means

ten percent for first layer, twenty percent for

first two layers, forty percent for first three

layers, and sixty percent for first four layers.

An 'E' indicates that the values are estimated.

The first group is the minimum visibility over

Page 6
STN PRESS

AIR TEHP HIN

AIR TEHP MAX

WIND GROUP 10M

ACCUM PRECIP

PRECIP LAST HOUR

CRTFCN CODE

REVISION DATE

the last ten minutes in tenths of nautical miles

except where greater than nine when it will show

9+. A V in between means visibility is variable.

The second group is the maximum visibility over

the last ten minutes in tenths of nautical miles

except where greater than nine when it will show

9+.

The measured instantaneous atmospheric pressure

at station level.

The minimum air temperature over the last sixty

minutes.

The maximum air temperature over the last sixty

minutes.

The first two digits denote the ten minute mean

true wind direction in tens of degrees at a

height of ten meters above the surface. The next

three digits denote the ten minute mean wind

speed in knots at a height of ten meters above

the surface. The G denotes gust; the next three

digits denote the five second mean wind speed in

knots over ten minutes at a height of ten meters

above the surface. The next two digits denote

the peak wind speed direction in tens of degrees

over sixty minutes at a height of ten meters

above the surface. The next three digits denote

the maximum five second mean wind speed in knots

over sixty minutes at a height of ten meters

above the surface. The last digit denotes the

units digit from the two minute mean wind

direction in degrees.

The total amount of precipitation that has

fallen since a relative date. This variable is

measured at the start of every hour but given for

every fifteen-minute time period.

The accumulated precipitation (liquid water

equivalent of liquid or solid precipitation) over

the last sixty minutes.

The BOREAS certification level of the data.

Examples are CPI (Checked by PI), CGR (Certified

by Group), PRE (Preliminary), and CPI-??? (CPI

but questionable).

The most recent date when the information in the

referenced data base table record was revised.

7.3.3 Unit of Measurement

The measurement units for the parameters contained in the data files on the CD-ROM are:

Column Name Units

SITE NAME [none]

SUB SITE [none]

DATE OBS [DD-MON-YY]

TIME OBS [HHMM GMT]

REPORT [none]

Page 7
SKY COVER

VISIBILITY

AIR TEMP 1 5M

DEW TEMP 1 5M

MEAN WIND 10M 2MIN

ALTIMETER

OPACITY

VISIBILITY MIN MAX

STN PRESS

AIR TEMP MIN

AIR TEMP MAX

WIND GROUP 10M

ACCUM PRECIP

PRECIP LAST HOUR

CRTFCN CODE

REVISION DATE

[hundreds of feet]

[nautical miles]

[degrees Celsius]

[degrees Celsius]

[unitless]

[inches of mercury]

[tens of percent]

[tenths of nautical miles]

[kiloPascals]

[degrees Celsius]

[degrees Celsius]

[unitless]

[millimeters]

[millimeters]

[none]

[DD-MON-YY]

7.3.4 Data Source

The sources of the parameter values contained in the data files on the CD-ROM are:

Column Name Data Source

SITE NAME

SUB SITE

DATE OBS

TIME OBS

REPORT

SKY COVER

VISIBILITY

AIR TEMP 1 5M

DEW TEMP 1 5M

MEAN WIND 10M 2MIN

ALTIMETER

OPACITY

VISIBILITY MIN MAX

STN PRESS

AIR TEMP MIN

AIR TEMP MAX

WIND GROUP 10M

ACCUM PRECIP

PRECIP LAST HOUR

CRTFCN CODE

REVISION DATE

[Assigned by BORIS]

[Assigned by BORIS]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Supplied by Investigator]

[Assigned by BORIS]

[Assigned by BORIS]

7.3.5 Data Range

The following table gives information about the parameter values found in the data files on the

CD-ROM.

Column Name

Minimum Maximum Missng Unrel Below

Data Data Data Data Detect

Value Value Value Value Limit

Data

Not

Cllctd

SITE NAME

SUB SITE

REG-999-ZHB03 REG-999-ZHB03 None None None

STAFF-AES03 STAFF-AES03 None None None

None

None

Page 8
DATE OBS 24-MAY-94

TIME OBS 2

REPORT SA

SKY COVER N/A

VISIBILITY -999

AIR TEMP 1 5M .3

DEW TEMP 1 5M -.2

MEAN WIND 10M 2MIN 0

ALTIMETER 29.18

OPACITY -999

VISIBILITY MIN MAX -999

STN PRESS 94.67

AIR TEMP MIN .2

AIR TEMP MAX .9

WIND GROUP 10M N/A

ACCUM PRECIP 37

PRECIP LAST HOUR 0

CRTFCN CODE CPI

REVISION DATE 22-JAN-96

20-SEP-94

2348

SP

N/A

9.+

30.1

19.9

914

30 34

E6

90 9+

98 48

295

3O 8

N/A

244.1

i0 .4

CPI

22-JAN-96

None None None None

None None None None

None None None None

-999 None None None

-999 None None None

-999 None None None

None None None None

None None None None

None None None None

-999 None None None

-999 None None None

None None None None

-999 None None None

-999 None None None

None None None None

None None None None

None None None None

None None None None

None None None None

Minimum Data Value -- The minimum value found in the column.

Maximum Data Value -- The maximum value found in the column.

Missng Data Value -- The value that indicates missing data. This is used to

indicate that an attempt was made to determine the

parameter value, but the attempt was unsuccessful.

Unrel Data Value -- The value that indicates unreliable data. This is used

to indicate an attempt was made to determine the

parameter value, but the value was deemed to be

unreliable by the analysis personnel.

Below Detect Limit -- The value that indicates parameter values below the

instruments detection limits. This is used to

indicate that an attempt was made to determine the

parameter value, but the analysis personnel determined

that the parameter value was below the detection

limit of the instrumentation.

Data Not Cllctd -- This value indicates that no attempt was made to

determine the parameter value. This usually

indicates that BORIS combined several similar but

not identical data sets into the same data base table

but this particular science team did not

measure that parameter.

Blank -- Indicates that blank spaces are used to denote that type of value.

N/A -- Indicates that the value is not applicable to the respective column.

None -- Indicates that no values of that sort were found in the column.

Page 9
7.4 Sample Data Record

The following are wrapped versions of data records from a sample data file on the CD-ROM.

SITE NAME,SUB SITE,DATE OBS,TIME OBS,REPORT,SKY COVER, VISIBILITY,AIR TEMP 1 5M,

DEW TEMP 1 5M, MEAN WIND 10M 2MIN,ALTIMETER, OPACITY,VISIBILITY MIN MAX, STN PRESS,

AIR TEMP MIN,AIR TEMP MAX,WIND GROUP 10M, ACCUM PRECIP,PRECIP LAST HOUR,

CRTFCN CODE,REVISION DATE

m

'REG-999-ZHB03'

'703',29.55, '0'

22-JAN-96

'REG-999-ZHB03'

'605',29.54,'0'

22-JAN-96

m

'STAFF-AES03'

'9+ 9+',95.88

'STAFF-AES03'

'9+ 9+',95.84

19-JUL-94 503, 'SA', 'CLR BLO 100','9.+',22.2,19.3,

21.8,22.4 '07004G000000008',180.8,0.0, 'CPI',

19-JUL-94 531, 'SA', 'CLR BLO 100','9.+',22.0,19.4,

22.0,22.4 '06004G000000005',180.8,0.0, 'CPI',

8. Data Organization

8.1 Data Granularity

The smallest unit of data is a monthly set of 15-minute records for one station.

8.2 Data Format(s)

The Compact Disk-Read-Only Memory (CD-ROM) files contain American Standard Code for

Information Interchange (ASCII) numerical and character fields of varying length separated by

commas. The character fields are enclosed with single apostrophe marks. There are no spaces between

the fields.

Each data file on the CD-ROM has four header lines of Hyper-Text Markup Language (HTML)

code at the top. When viewed with a Web browser, this code displays header information (data set

title, location, date, acknowledgments, etc.) and a series of HTML links to associated data files and

related data sets. Line 5 of each data file is a list of the column names, and line 6 and following lines

contain the actual data.

9. Data Manipulations

9.1 Formulae

None given.

9.1.1 Derivation Techniques and Algorithms

None given.

9.2 Data Processing Sequence

9.2.1 Processing Steps

None given.

9.2.2 Processing Changes

'RAW' data have many extraneous characters, which were removed. Each record was checked for

completeness.

9.3 Calculations

No calculations were performed on the data.

Page 10
9.3.1 Special Corrections/Adjustments

None given.

9.3.2 Calculated Variables

None given.

9.4 Graphs and Plots

None.

10. Errors

10.1 Sources of Error

None given.

10.2 Quality Assessment

10.2.1 Data Validation by Source

None given.

10.2.2 Confidence Level/Accuracy Judgment

None given.

10.2.3 Measurement Error for Parameters

None given.

10.2.4 Additional Quality Assessments

None given.

10.2.5 Data Verification by Data Center

Some automated quality assessment was done to identify spikes and other anomalies in the data.

These anomalies are also present in the original data and are not due to BOREAS Information System

(BORIS) processing.

11. Notes

11.1 Limitations of the Data

None given.

11.2 Known Problems with the Data

Weighing gauges are known to give readings of poorer quality than tipping bucket gauges.

However, they do work in winter.

Some automated quality assessment was done to identify spikes and other anomalies in the data.

These anomalies are also present in the original data and are not due to BORIS processing. The

following are a few examples of some anomalies that were detected for the various columns of data.

This is not meant to be a comprehensive list.

REPORT

Because this colunm contains character data, no quantitative assessment was done. The data appear to

be correct.

Page 11
SKY COVER

Because this column contains character data, no quantitative assessment was done. The data appear to

be correct.

VISIBILITY

Because this column contains character data, no quantitative assessment was done. The data appear to

be correct.

AIR TEMP 1 5 M

No problems were identified.

DEW TEMP 1 5M

No problems were identified.

MEAN WIND 10M 2MIN

Because_his colu-nm contains character data, no quantitative assessment was done. The data appear to

be correct.

ALTIMETER

These data appear to be reasonable.

OPACITY

Because this column contains character data, no quantitative assessment was done. The data appear to

be correct.

VISIBILITY MIN MAX

Because this coTunm c_ntains character data, no quantitative assessment was done. The data appear to

be correct.

STN PRESS

No anomalies were identified.

AIR TEMP MIN

No serious anomalies were identified, but some questionable values were found that could not be

verified for accuracy.

AIR TEMP MAX

No serious anomalies were identified, but some questionable values were found that could not be

verified for accuracy.

WIND GROUP 10M

Becausethis column contains character data, no quantitative assessment was done. The data appear to

be correct.

ACCUM PRECIP

No seriousanomalies were identified.

PRECIP LAST HOUR

No seriousanomalTes were identified.

11.3 Usage Guidance

None given.

Page 12
11.4 Other Relevant Information

None given.

12. Application of the Data Set

These data in conjunction with other surface meteorological data can be used to monitor and model the

near-surface conditions on a diurnal and seasonal basis.

None given.

13. Future Modifications and Plans

14.1 Software Description

None given.

14.2 Software Access

None given.

14. Software

15. Data Access

The AES READAC surface meteorological data are available from the Earth Observing System Data

and Information System (EOSDIS) Oak Ridge National Laboratory (ORNL) Distributed Active

Archive Center (DAAC).

15.1 Contact Information

For BOREAS data and documentation please contact:

ORNL DAAC User Services

Oak Ridge National Laboratory

P.O. Box 2008 MS-6407

Oak Ridge, TN 37831-6407

Phone: (423) 241-3952

Fax: (423) 574-4665

E-mail: ornldaac@ornl.gov or ornl@eos.nasa.gov

15.2 Data Center Identification

Earth Observing System Data and Information System (EOSDIS) Oak Ridge National Laboratory

(ORNL) Distributed Active Archive Center (DAAC) for Biogeochemical Dynamics

http://www-eosdis.ornl.gov/[Internet Link].

15.3 Procedures for Obtaining Data

Users may obtain data directly through the ORNL DAAC online search and order system

[http://www-eosdis.ornl.gov/] and the anonymous FTP site [ftp://www-eosdis.ornl.gov/data/] or by

contacting User Services by electronic mail, telephone, fax, letter, or personal visit using the contact

information in Section 15.1.

Page 13
15.4 Data Center Status/Plans

The ORNL DAAC is the primary source for BOREAS field measurement, image, GIS, and

hardcopy data products. The BOREAS CD-ROM and data referenced or listed in inventories on the

CD-ROM are available from the ORNL DAAC.

16. Output Products and Availability

16.1 Tape Products

None.

16.2 Film Products

None.

16.3 Other Products

These data are available on the BOREAS CD-ROM series.

17. References

17.1 Platform/Sensor/Instrument/Data Processing Documentation

21X Micrologger Operator's Manual, Revision 8/91. Campbell Scientific, Inc.

17.2 Journal Articles and Study Reports

Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson,

A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. 2000. Collected Data of The

Boreal Ecosystem-Atmosphere Study. NASA. CD-ROM.

Sellers, P. and F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version

1994-3.0, NASA BOREAS Report (EXPLAN 94).

Sellers, P. and F. Hall. 1996. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version

1996-2.0, NASA BOREAS Report (EXPLAN 96).

Sellers, P., F. Hall, and K.F. Huemmrich. 1996. Boreal Ecosystem-Atmosphere Study: 1994

Operations. NASA BOREAS Report (OPS DOC 94).

Sellers, P., F. Hall, and K.F. Huemmrich. 1997. Boreal Ecosystem-Atmosphere Study: 1996

Operations. NASA BOREAS Report (OPS DOC 96).

Sellers, P., F. Hall, H. Margolis, B. Kelly, D. Baldocchi, G. den Hartog, J. Cihlar, M.G. Ryan, B.

Goodison, P. Crill, K.J. Ranson, D. Lettenmaier, and D.E. Wickland. 1995. The boreal

ecosystem-atmosphere study (BOREAS): an overview and early results from the 1994 field year.

Bulletin of the American Meteorological Society. 76(9): 1549-1577.

Sellers, P.J., F.G. Hall, R.D. Kelly, A. Black, D. Baldocchi, J. Berry, M. Ryan, K.J. Ranson, P.M.

Crill, D.P. Lettenmaier, H. Margolis, J. Cihlar, J. Newcomer, D. Fitzjarrald, P.G. Jarvis, S.T.

Gower, D. Halliwell, D. Williams, B. Goodison, D.E. Wickland, and F.E. Guertin. 1997. BOREAS

in 1997: Experiment Overview, Scientific Results and Future Directions. Journal of Geophysical

Research 102(D24): 28,731-28,770.

Page 14
17.3 Archive/DBMS Usage Documentation

None.

None.

18. Glossary of Terms

19. List of Acronyms

AES

AFM

ASCII

BOREAS

BORIS

CD-ROM

CGR

CPI

- Atmospheric and Environment Service

- Airborne Fluxes and Meteorology

- American Standard Code for Information Interchange

- BOReal Ecosystem-Atmosphere Study

- BOREAS Information System

- Compact Disk-Read-Only Memory

- Certified by Group

- Checked by PI

CPI-??? - CPI but questionable

DAAC

EOS

EOSDIS

GIS

GMT

GSFC

HTML

IFC

MARS I I

MB

NAD 83

NASA

NSA

ORNL

PANP

PI

PRE

READAC

SK

SSA

T/RH

TBRG

URL

- Distributed Active Archive Center

- Earth Observing System

- EOS Data and Information System

- Geographic Information System

- Greenwich Mean Time

- Goddard Space Flight Center

- HyperText Markup Language

- Intensive Field Campaign

- Meteorological Automatic Reporting System II

- Manitoba

- North American Datum of 1983

- National Aeronautics and Space Administration

- Northern Study Area

- Oak Ridge National Laboratory

- Prince Albert National Park

- Principal Investigator

- Preliminary

- Remote Environmental Automated Data Acquisition Concept

- Saskatchewan

- Southern Study Area

- Temperature/Relative Humidity

- Tipping Bucket Rain Gauge

- Uniform Resource Locator

Page 15
20. Document Information

20.1 Document Revision Date

Written: 27-Jul- 1995

Last Updated: 06-Jul- 1999

20.2 Document Review Date(s)

BORIS Review: 02-Jul- 1998

Science Review:

20.3 Document ID

20.4 Citation

When using these data, please include the following acknowledgment as well as citations of

relevant papers in Section 17.2:

These data were collected by the Atmospheric Environment Service of Environment Canada. Their

efforts to make these data available are greatly appreciated.

If using data from the BOREAS CD-ROM series, also reference the data as:

Atkinson, G.B., "Environment Canada 15-Minute Autostation Data." In Collected Data of The

Boreal Ecosystem-Atmosphere Study. Eds. J. Newcomer, D. Landis, S. Conrad, S. Curd, K.

Huemmrich, D. Knapp, A. Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F.

Hall, and P. Sellers. CD-ROM. NASA, 2000.

Also, cite the BOREAS CD-ROM set as:

Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J.

Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. Collected Data of

The Boreal Ecosystem-Atmosphere Study. NASA. CD-ROM. NASA, 2000.

20.5 Document Curator

20.6 Document URL

Page 16
REPORT DOCUMENTATION PAGE FormApproved

OMB No. 0704-0188

Public reporting burden for this collection of informationis estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources,

gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this

collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson

Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503.

1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED

September 2000 Technical Memorandum

4. TITLE AND SUBTITLE 5. FUNDING NUMBERS

Technical Report Series on the Boreal Ecosystem-Atmosphere Study (BOREAS)

BOREAS AES READAC Surface Meteorological Data

6. AUTHOR(S)

G. Barrie Atkinson and Barry Funk

Forrest G. Hall and David E. Knapp, Editors

7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS (ES)

Goddard Space Flight Center

Greenbelt, Maryland 20771

9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS (ES)

National Aeronautics and Space Administration

Washington, DC 20546-0001

923

RTOP: 923-462-33-01

8. PEFORMING ORGANIZATION

REPORT NUMBER

2000-03136-0

10. SPONSORING / MONITORING

AGENCY REPORT NUMBER

TM--2000-209891

Vol. l19

11. SUPPLEMENTARY NOTES

G.B. Atkinson and B. Funk: Environment Canada, Winnipeg, Manitoba, Canada;

D.E. Knapp: Raytheon ITSS, NASA Goddard Space Flight Center, Greenbelt, Maryland

12a. DISTRIBUTION / AVAILABILITY STATEMENT

Unclassifie_Unlimited

Subject Category: 43

Report available from the NASA Center for AeroSpace Information,

7121 Standard Drive, Hanover, MD 21076-1320. (301) 621-0390.

12b. DISTRIBUTION CODE

13. ABSTRACT (Maximum 200 words)

Canadian AES personnel collected and processed data related to surface atmospheric meteorological

conditions over the BOREAS region. This data set contains 15-minute meteorological data from one

READAC meteorology station in Hudson Bay, Saskatchewan. Parameters include day, time, type of

report, sky condition, visibility, mean sea level pressure, temperature, dewpoint, wind, altimeter, opacity, minimum and maximum visibility, station pressure, minimum and maximum air temperature, a

wind group, precipitation, and precipitation in the last hour. The data were collected non-continuously

from 24-May-1994 to 20-Sep-1994. The data are provided in tabular ASCII files, and are classified as

AFM-Staff data.

14. SUBJECT TERMS

BOREAS, aircraft flux meteorology, READAC.

17. SECURITY CLASSIFICATION

OF REPORT

Unclassified

NSN 7540-01-280-5500

18. SECURITY CLASSIFICATION

OF THIS PAGE

Unclassified

19. SECURITY CLASSIFICATION

OF ABSTRACT

Unclassified

15. NUMBER OF PAGES

16

16. PRICE CODE

20. LIMITATION OF ABSTRACT

UL

Standard Form 298 (Rev. 2-89)

Prescribed by ANSI Std. Z39.18

298-102