Number range CHAPTER

CRUISE INSTRUCTIONS

NOAA Ship RONALD H. BROWN

July 2, 2007

+------------------------+---------------------------------------------+
| > **Cruise Number:**   | > RB-07-05                                  |
+------------------------+---------------------------------------------+
| > **Project:**         | > GOMECC, Gulf of Mexico and East Coast     |
|                        | > Carbon Cruise                             |
+------------------------+---------------------------------------------+
| > **Cruise dates:**    | > July 10-August 4, 2007                    |
+------------------------+---------------------------------------------+
| > **Chief Scientist:** | > Tsung-Hung Peng & Chris Langdon           |
+------------------------+---------------------------------------------+
| > **Working Area:**    | > Gulf of Mexico and East Coast of US       |
+------------------------+---------------------------------------------+
| > **Itinerary:**       | > Depart: Galveston TX                      |
+------------------------+---------------------------------------------+
|                        | > Arrive: Boston MA                         |
+------------------------+---------------------------------------------+

Endorsements:

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Tsung-Hung Peng Robert Atlas

Chief Scientist Director, AOML

NOAA/AOML Miami, FL 33149

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

CAPT Emily Christman

Commanding Officer, Atlantic

Marine Operations Center

Norfolk, VA 23510

**[CRUISE OVERVIEW]{.underline}**

**A. Summary**

The Gulf of Mexico and East Coast Carbon (GOMECC) cruise is the first
comprehensive survey of inorganic carbon, nutrients and other
biogeochemical parameters along the Gulf and East coasts of the USA. The
effort is in support of the North American Carbon Program (NACP) that
has as a major objective the determination of the air-sea carbon dioxide
fluxes in the coastal regions. The project will increase our
understanding of the controls of fluxes of atmospheric trace gases in
particular that of carbon dioxide (CO~2~) and is supported by the
NOAA/OAR and the NOAA GCC (Global Carbon Cycle) programs.

The cruise will commence in Galveston, Texas on July 10 and end in
Boston, MA on August 4, 2007. Thirty scientists from twelve different
institutions will be engaged in surface water, water column and
atmospheric measurements en route. The cruise plan involves 9
cross-shelf transects of 12 stations each from the coast to the 1000-m
isobath, or pertinent current boundary such as the Loop Current or Gulf
Stream. At the stations CTD/Rosette operations will occur using 24, 10-L
bottles that will be filled consecutively over the water column from 1
to 2 m from the bottom to the surface. Extensive measurements will be
taken from the scientific seawater line during the entire cruise. Air
sampling from the bow will occur in continuously in conjunction with
physical micro-meteorological efforts.

**B. Operating Area**

The operating area is in the Gulf of Mexico and East Coast of the US
with a schematic of the cruise track shown in Figure 1.

![](media/image1.jpeg){width="4.467361111111111in" height="3.4in"}

Figure 1: Cartoon of cruise track. The ship will depart Galveston and
return to Boston. The cruise will be approximately 26 days. A
preliminary cruise schedule is listed in Table 1.

**C. Participating Institutions**

*Primary:*

United States Department of Commerce

National Oceanic and Atmospheric Administration

Atlantic Oceanographic and Meteorological Laboratory (NOAA/AOML)

4301 Rickenbacker Causeway

Miami, FL 33149 USA

Telephone: 305 361 4380

Facsimile: 305 361 4392

*Additional:*

ESRL NOAA - Earth System Research Laboratory

RSMAS Rosenstiel School of Marine and Atmospheric Science/University of
Miami

USF University of South Florida

UGA University of Georgia

UNH University of New Hampshire

TAMU Texas A&M University

CU University of Colorado, Boulder

USM University of Southern Mississippi

Loyola Loyola College of Maryland

LDEO Lamont-Doherty Earth Observatory/Columbia University

**D. Personnel (as of May 18, 2007)**

***Personnel Gender Citizenship Function***

1 Langdon, Chris M US Chief Scientist

2 Peng, Tsung-Hung M US Chief Scientist-2

3 Fonseca, Carlos M Brazil CTD

4 Langdon, Brian M US CTD/watch

5 Seaton, Kyle M US CTD/watch

6 Berberian, George M US O~2~

7 Featherstone, Chuck M US O~2~

8 Fischer, Charlie M US Nutrients

9 Amornthammarong, Natchanon M Thailand Nutrients

10 Peltola, Esa M US DIC

11 Castle, Bob M US DIC

12 Wang, Yongchen M China Alk

13 Huang, Wei-Jen M Taiwan Alk

14 Sullivan, Kevin M US pCO~2~

15 Plagge, Amanda F US DOC/Chl/color

16 St. Louis, Jennifer F US DOC/Chl/color

17 Salisbury, Joe M US DOC/Chl/color

18 Liu, Xue wu (Sherwood) M US UW pH/Profile

19 Easley, Regina F US UW pH/Profile

20 Wang, Zhaohui (Aleck) M China UW pH/Profile

21 Otto, Bill M US Micromet Fluxes

22 Lang, Eva F Germany Ozone fluxes

23 Chakraborty, Sumit M India Pigments

24 Yvon-Lewis, Shari F US HCFC

25 O\'Hern, Julia F US HCFC

26 Dahl, Elizabeth F US Alkyl Nitrates

27 Murawski, Kevin M US Alkyl Nitrates

28 Reader, Heather F Canada Photochemistry

29 Graustein, Meg F US Carbon fluxes

Hu, Xinping M China Alk - Alternate

Bariteau, Ludovic Poland - on ship in port only

Hueber, Jacques France - on ship in port only

*Abbreviations:*

CTD Conductivity, Temperature and Depth measurements

Watch Watch stander for console and deck operations

O~2~ Oxygen measurements from CTD/Rosette package

Nutrients Inorganic nutrient measurements from CTD/Rosette package

DIC Total dissolved inorganic carbon measurements

Alk Total alkalinity measurements from CTD/Rosette package

pCO~2~ Measurement of partial pressure of carbon dioxide

DOC Dissolved organic carbon from CTD/Rosette package

Chl Chlorophyll

Color Optical measurements

UWpH/profile Measurement of pH with sensors on underway line and on CTD

Micromet fluxes Measurement of heat, momentum and water vapor fluxes
from the bow

Ozone fluxes Micrometeorological measurement of ozone from the bow

Carbon fluxes Micrometeorological measurement of carbon dioxide from the
bow

HCFC Halocarbon/fluorocarbon measurements from CTD/Rosette package

**E. Administrative**

*Chief Scientist:* Dr. Tsung Hung Peng

Atlantic Oceanographic and Meteorological Laboratory

4301 Rickenbacker Causeway Miami, FL 33149 USA

Telephone: 305-361-4399 Facsimile: 305-361-4392

Tsung-hung.peng@noaa.gov

*Chief Scientist:* Prof. Chris Langdon

University of Miami

4600 Rickenbacker Causeway Miami, FL 33149 USA

Telephone: 305-421-4614

clangdon@rsmas.miami.edu

*Project Lead:* Dr. Rik Wanninkhof

Atlantic Oceanographic and Meteorological Laboratory

4301 Rickenbacker Causeway Miami, FL 33149 USA

Telephone: 305-361-4379/Facsimile: 305-361-4392

Rik.wanninkhof@noaa.gov

*Alternate Point of Contact*: LCDR Nancy Ash

> Atlantic Oceanographic and Meteorological Laboratory

4301 Rickenbacker Causeway Miami, FL 33149 USA

Telephone: 305-361-4544/Facsimile: 305-361-4449

> Nancy.Ash@noaa.gov

*Clearances:* Research clearance is being requested for Grand Bahamas
Islands.

**F. Foreign National Access and Deemed Export Controls**

All foreign national access to the vessel shall be in accordance with
NAO 207-12 and RADM De Bow's March 16, 2006 memo
([http://deemedexports.noaa.gov](http://deemedexports.noaa.gov/)). The
foreign national's sponsor is responsible for obtaining clearances and
export licenses required and for providing for required escorts by the
NAO. Programs sponsoring foreign nationals should consult with their
designated line office personnel to assist with the process
(<http://deemedexports.noaa.gov/contacts.html>).

The following are basic requirements. Full compliance with NAO 207-12 is
required.

*Responsibilities of the Chief Scientist with respect to foreign
nationals:*

Ensure the following is provided to the Commanding Officer before any
foreign national will be allowed on board for any reason:

1.  Written notification identifying the NOAA Program individual who is
    responsible for ensuring compliance with NOAA and export regulations
    for the foreign national (see Foreign National Sponsor
    responsibilities below).

2.  A copy of the DOC/OSY clearance authorization for access by the
    foreign national. 

3.  A copy of Appendix B of NAO 207-12 with NOAA Chief Administrative
    Officer concurrence endorsement.

4.  Written notification that the foreign national has been cleared
    against the State, Commerce and Treasury departments\' Lists to
    Check.
    http://www.bis.doc.gov/ComplianceAndEnforcement/ListsToCheck.htm

5.  Provide the NOAA Foreign National List spreadsheet for each foreign
    national in the scientific party.

Escorts -- The Chief Scientist is responsible to provide escorts to
comply with NAO 207-12 Section 5.10, or as required by the vessel's
DOC/OSY Regional Security Officer.

Ensure all non-foreign national members of the scientific party receive
the briefing on Espionage Indicators (NAO 207-12 Appendix A) at least
annually or as required by the servicing Regional Security Officer.

Export Control - The Chief Scientist is responsible for complying with
NAO 207-12 and the development of Technology Access Control Plans for
items they bring aboard. The Chief Scientist must notify the Commanding
Officer of any export controlled items they bring aboard and any access
restrictions associated with these items.

The Commanding Officer and the Chief Scientist will work together to
implement any access controls necessary to ensure no unlicensed export
occurs of any controlled technology onboard regardless of ownership.

*Responsibilities of the Commanding Officer* *with respect to foreign
nationals*:

Ensure only those foreign nationals with DOC/OSY clearance are granted
access.

Deny access to OMAO platforms and facilities by foreign nationals from
countries controlled for anti-terrorism (AT) reasons and individuals
from Cuba or Iran without written NMAO approval and compliance with
export and sanction regulations.

Ensure foreign national access is permitted only if unlicensed deemed
export is not likely to occur.

Ensure receipt from the Chief Scientist of the NOAA Foreign National
List spreadsheet for each foreign national in the scientific party.

Ensure Foreign Port Officials, e.g., Pilots, immigration officials,
receive escorted access in accordance with maritime custom to facilitate
the vessel's visit to foreign ports.

Export Control - 8 weeks in advance of the cruise, provide the Chief
Scientist with a current inventory of OMAO controlled technology onboard
the vessel and a copy of the vessel Technology Access Control Plan
(TACP). Also notify the Chief Scientist of any OMAO-sponsored foreign
nationals that will be onboard while program equipment is aboard so that
the Chief Scientist can take steps to prevent unlicensed export of
Program controlled technology.

The Commanding Officer and the Chief Scientist will work together to
implement any access controls necessary to ensure no unlicensed export
occurs of any controlled technology onboard regardless of ownership.

Ensure all OMAO personnel onboard receive the briefing on Espionage
Indicators (NAO 207-12 Appendix A) at least annually or as required by
the servicing Regional Security Officer.

*Responsibilities of the Foreign National Sponsor with respect to
foreign nationals*

Export Control - The foreign national's sponsor is responsible for
obtaining any required export licenses and complying with any conditions
of those licenses prior to the foreign national being provided access to
the controlled technology onboard regardless of the technology's
ownership.

The Departmental Sponsor/NOAA of the foreign national shall assign an
on-board Program individual, who will be responsible for the foreign
national while on board. The identified individual must be a U.S.
citizen, NOAA (or DOC) employee. According to DOC/OSY, this requirement
cannot be altered.

Ensure completion and submission of Appendix C (Certification of
Conditions and Responsibilities for a Foreign National Guest) as
required by NAO 207-12 Section 5.03.h.

**[OPERATIONS]{.underline}**

**A. Data to be collected**

1\. CTD profiles of depth along hydrographic transects in the Gulf of
Mexico and East Coast of the US. Approximately 104 stations will be
completed to full water depth.

2\. Water samples collected in rosette bottles for chemical
measurements.

3\. Continuous recording ship mounted ADCP.

4\. Inorganic carbon and nutrient of the water samples collected with
the bottles.

5.  Dissolved oxygen concentration in the water samples collected with
    the bottles.

6.  Trace gases such as chlorofluorocarbons in the water samples
    collected with the bottles..

7.  Heading data from both the MAHRS gyro system and the Seapath GPS
    system for correction and processing of shipboard ADCP data.

8\. Continuous recording of Thermosalinograph (TSG).

9\. Inverted Echo Sounder telemetry data recovery (requires transducer
over the side).

10\. Measurements of CO~2~, O~2~, Chl, HCFC and other parameters from
the uncontaminated scientific seawater supply line spigots in main lab
and hydro lab.

11\. Measurement of heat, momentum, water vapor, ozone and CO~2~ fluxes
in the marine boundary layer (atmosphere) from the bow of the ship.

12\. A water column light profile will be taken each day at noon. The
ship should be positioned such that it does not cast a shadow on the
light-meter.

**B. Staging Plan**

Staging of all equipment for the cruise will be conducted in Galveston
TX. We request access to the ship starting on July 8 for loading and
equipment set-up. If practical we will share crane services with
previous cruise participants and in this case we will likely perform
crane related staging on July 7. We plan to send to the ship a 20-foot
lab container for CO~2~ analyses and a 10-foot container containing the
CTD/rosette package. A crane will be rented to load the vans and to
install the O3 sensor and other apparatus on the bow. We request that
the ship take delivery, and secure the containers. Scientific personnel
will be present for the purposes of scoping and securing equipment and
if necessary loading the container at that time. A list of equipment to
be brought aboard is shown in the FACILITIES section of the Project
Instructions and in Appendix B.

Most of the science party will arrive in Galveston TX two days prior to
sailing for final staging prior to the cruise (July 8). The science
party requests permission to stay onboard the ship the night prior to
sailing to facilitate maximum time for setup of the scientific gear. We
understand the galley may not be available for science party meals
before sailing. We will require the assistance of the shipboard ET and
Survey Technician for 4 hours two-days prior to sailing and 8 hours the
day before sailing to help install computer systems, terminations for
the CTD and other science equipment.

**C. Cruise Plan**

The NOAA Ship *Ronald H. Brown* (RHB) will depart Galveston, on July 10,
2007 to begin scientific operations. The operation goals of the cruise
are to sample along 8 hydrographic sections (see Table 1 for preliminary
station locations); continuous measurements of surface water from the
uncontaminated scientific seawater supply; and continuous
micro-meteorological measurements from the bow of the ship. The actual
hydrographic stations sampling plan may deviate from this proposed plan
in both number of stations and their locations. A description of each
project is provided in Appendix C.

**D. Waypoints**

Approximate Station Locations are listed in Table 1. These are subject
to change.

**E. Station Operations**

CTD Operations: CTD casts will include the CTD/O2 unit, a pH unit, a
Rosette sampler and 24, 10-L bottles on the Rosette frame. Approximately
104 casts will be conducted to full water column depth. We will require
a package tracking system and display for the CTD operations
(Knudsen/Bathy2000). We recommend that the ship contain a back-up CTD
conducting capable wire for this cruise. Approximate station locations
are listed in Table 1.

We anticipate 1-2 hours of time will be required for water sampling
between stations. We request that the ship make reasonable speeds to a
location near the next station and then perform air flux measurements
until the water sampling from the Niskin bottles is completed. For flux
measurements the ship should steam slowly into the wind at 1- 3 knots
with objective to minimize ship motion. A minimum of 1-hour is needed
for optimal flux measurements. Depending on wind direction, a slow steam
to the next station, rather than sitting on station might be preferable.
If good time can be made with station operations, periodically one to
three hours will be devoted to air flux measurements with the
operational criteria listed above. Of particular interest is
determination of fetch effects by flux measurements at different
distances from the coast under similar meteorological conditions.
Optimal sampling strategies to accommodate flux measurements will be
determined in consultation with cognizant scientists.

Stations 9, 10, and 11 are being performed in support of the NOAA Gulf
of Mexico hypoxia project
(http://www.ncddc.noaa.gov/ecosystems/hypoxia). These are routine
sampling stations of the project (see,
http://wavcis.csi.lsu.edu/index.asp) to which we will contribute by the
abundance of biogeochemical measurements. Due to shallow depth, in-water
structures, and traffic considerations, approximate locations
representative of the hypoxic zone might have to be occupied.

There shall be no smoking, no painting, and no use of solvents on the
bow, in the area near the equilibrator, or near the Niskin bottles at
any time during the cruise.

*Table 1.* Station locations for the GOMECC cruise. The stations listed
with an \* are in shallow water and due to navigational constraints
might be moved at the discretion of the command. The 4-hour increments
at select way-points are the accommodate time for direct flux
measurements that would not necessarily occur at those locations.

  ----------- ----- ----- ------ ----- ------- -------- ------- --------------
  Sta         Lat         Lon          depth   wire     Extra   Arrival

  \#                                   \(m\)   time     time    Local

  Galveston   29    18    94     48    0       0.00     0       7/10/07 10:00

  Seabuoy     29    18    94     48    0       0.00     4       7/10/07 10:00

  1           29    0     95     0     17      0.03     0.15    7/10/07 16:18

  2           28    40    95     0     27      0.05     0.15    7/10/07 18:42

  Rig         28    37    95     0     0       0.00     0       7/10/07 19:15
  Clearance                                                     

  3           28    20    95     0     27      0.05     0.15    7/10/07 21:07

  4           28    5     95     0     27      0.05     0.15    7/10/07 22:59

  5           27    50    95     0     271     0.32     0.15    7/11/07 0:51

  6           27    40    95     0     610     0.71     1.15    7/11/07 2:25

  7           27    30    95     0     877     1.02     1.15    7/11/07 5:24

  8           27    20    95     0     1114    0.74     1.15    7/11/07 8:41

  Safety      27    43    94     16    0       0.00     0       7/11/07 14:24

  Waypoint    28    1     90     9     0       0.00     0       7/12/07 8:38

  Waypoint    28    11    90     0     0       0.00     0       7/12/07 9:41

  Waypoint    28    28    90     0     0       0.00     0       7/12/07 11:05

  Waypoint    28    34    90     0     0       0.00     4       7/12/07 11:33

  Waypoint    28    46    90     24    0       0.00     0       7/12/07 17:36

  9\*         28    50    90     49    16      0.03     0.15    7/12/07 20:03

  waypoint    28    46    90     24    0       0.00     4       7/12/07 22:05

  10\*        28    52    90     29    18      0.03     0.15    7/13/07 2:52

  Waypoint    28    55    90     9     0       0.00     1.15    7/13/07 4:33

  11\*        29    3     89     59    17      0.03     0.15    7/13/07 6:58

  Waypoint    28    56    90     7     0       0.00     4       7/13/07 7:58

  12\*        29    0     90     0     22      0.04     0.15    7/13/07 12:47

  13          28    45    90     0     44      0.07     0.65    7/13/07 14:39

  14          28    30    90     0     91      0.15     0.65    7/13/07 17:02

  Waypoint    28    26    90     0     0       0.00     4       7/13/07 18:09

  15          28    15    90     0     146     0.24     0.65    7/13/07 23:24

  16          28    5     90     0     347     0.40     0.9     7/14/07 1:24

  17          27    55    90     0     676     0.79     0.9     7/14/07 3:49

  18          27    45    90     0     823     0.96     0.9     7/14/07 6:37

  19          27    35    90     0     1080    0.72     0.9     7/14/07 9:35

  Waypoint    29    12    88     31    0       0.00     0       7/14/07 21:34

  Waypoint    29    18    88     31    0       0.00     0       7/14/07 22:05

  Waypoint    30    7     86     53    0       0.00     0       7/15/07 6:17

  Waypoint    27    55    84     13    0       0.00     0       7/15/07 22:21

  20\*        28    0     83     0     20      0.03     0.15    7/16/07 5:31

  21          27    47    83     20    29      0.05     0.15    7/16/07 8:10

  22          27    33    83     40    46      0.08     0.65    7/16/07 10:50

  23          27    20    84     0     70      0.12     0.15    7/16/07 14:01

  24          27    7     84     20    130     0.22     0.15    7/16/07 16:45

  25          26    53    84     40    220     0.26     0.15    7/16/07 19:36

  26          26    40    85     0     2720    1.81     0.15    7/16/07 22:29

  27          26    27    85     20    3290    2.19     0.15    7/17/07 2:55

  28          26    13    85     40    3270    2.18     0.65    7/17/07 7:45

  29          26    0     86     0     3200    2.13     0.15    7/17/07 13:04

  tortugas    24    8     83     0     0       0.00     0       7/18/07 7:49

  florida     24    13    81     14    0       0.00     0       7/18/07 15:56

  florida     24    33    80     31    0       0.00     0       7/18/07 19:32
  keys                                                          

  florida     25    16    79     60    0       0.00     4       7/18/07 23:49

  30          27    0     79     59    64      0.11     0.15    7/19/07 18:45

  31          27    0     79     56    141     0.24     1.65    7/19/07 19:25

  32          27    0     79     52    273     0.32     1.5     7/19/07 21:48

  33          27    0     79     47    377     0.44     1.4     7/20/07 0:16

  34          27    0     79     41    549     0.64     1.25    7/20/07 2:52

  35          27    0     79     37    661     0.77     1.5     7/20/07 5:16

  36          27    0     79     30    760     0.89     1.1     7/20/07 8:25

  37          27    0     79     23    681     0.79     1.1     7/20/07 11:18

  38          27    0     79     17    607     0.71     1.25    7/20/07 13:58

  39          27    0     79     12    470     0.55     1.4     7/20/07 16:33

  40          27    0     79     11    67      0.11     1.5     7/20/07 18:42

  Clearance   27    0     79     11    0       0.00     4       7/20/07 20:18

  Waypoint    27    47    79     59    0       0.00     0       7/21/07 5:35

  Waypoint    30    23    80     13    0       0.00     0       7/21/07 18:39

  41\*        31    30    81     1     20      0.03     0.15    7/22/07 4:30

  42          31    28    80     55    13      0.02     1.4     7/22/07 5:19

  CO2 mooring 31    24    80     52    20      0.03     1.5     7/22/07 7:20

  43          31    24    80     45    0       0.00     1.2     7/22/07 9:41

  44          31    19    80     34    24      0.04     0.75    7/22/07 12:09

  45          31    15    80     23    32      0.05     0.75    7/22/07 14:12

  46          31    12    80     15    38      0.06     1       7/22/07 16:01

  47          31    5     79     57    53      0.09     0.15    7/22/07 19:06

  48          30    58    79     40    512     0.60     0.15    7/22/07 21:22

  49          30    52    79     26    740     0.86     0.15    7/22/07 23:50

  50          30    42    79     0     786     0.92     0.15    7/23/07 3:35

  51          30    29    78     30    823     0.96     0.15    7/23/07 7:49

  52          30    17    78     0     785     0.92     0.15    7/23/07 12:06

  s outer     31    50    79     38    0       0.00     0       7/23/07 23:34
  banks                                                         

  n outer     35    38    75     3     0       0.00     0       7/25/07 2:31
  banks                                                         

  53          36    0     75     3     35      0.06     0.15    7/25/07 4:19

  54          35    55    74     51    100     0.17     0.65    7/25/07 5:54

  55          35    50    74     39    1530    1.02     0.65    7/25/07 8:05

  56          35    45    74     27    1957    1.30     0.65    7/25/07 11:07

  57          35    39    74     11    2660    1.77     0.65    7/25/07 14:53

  58          35    32    73     59    3020    2.01     0.65    7/25/07 18:48

  59          35    20    73     49    3300    2.20     0.65    7/25/07 23:15

  60          35    13    73     41    3600    2.40     0.65    7/26/07 3:17

  61          35    2     73     24    4000    2.67     0.15    7/26/07 8:33

  62          34    53    73     7     4300    2.87     0.15    7/26/07 13:29

  63          34    39    72     52    4500    3.00     0.15    7/26/07 18:47

  Waypoint    36    34    74     49    0       0.00     2       7/27/07 10:21

  Waypoint    38    17    74     10    0       0.00     0       7/27/07 21:18

  64\*        39    28    74     16    20      0.03     0.65    7/28/07 6:09

  65          39    20    74     6     24      0.04     0.65    7/28/07 8:12

  66          39    13    73     55    31      0.05     0.65    7/28/07 10:16

  67          39    6     73     44    46      0.08     0.65    7/28/07 12:21

  68          38    59    73     33    50      0.08     0.65    7/28/07 14:27

  69          38    51    73     23    70      0.12     0.65    7/28/07 16:33

  70          38    44    73     12    100     0.17     0.65    7/28/07 18:42

  71          38    37    73     1     1480    0.99     0.65    7/28/07 20:54

  72          38    30    72     51    2400    1.60     0.65    7/28/07 23:55

  Waypoint    39    15    73     8     0       0.00     0       7/29/07 6:06

  Waypoint    40    18    72     0     0       0.00     0       7/29/07 12:52

  73          40    17    70     12    90      0.15     0.15    7/29/07 19:45

  74          40    8     70     7     160     0.27     0.8     7/29/07 21:16

  75          40    0     70     0     160     0.27     0.8     7/29/07 23:35

  76          39    54    69     56    700     0.82     1.2     7/30/07 1:28

  77          39    51    69     56    1000    1.17     1.6     7/30/07 3:51

  78          39    47    69     51    1500    1.00     1.4     7/30/07 7:19

  79          39    42    69     48    2000    1.33     1.3     7/30/07 10:25

  80          39    29    69     38    2400    1.60     0.15    7/30/07 14:58

  81          39    21    69     32    2500    1.67     0.9     7/30/07 17:50

  82          39    5     69     21    3000    2.00     0.15    7/30/07 22:24

  83          38    49    69     12    3300    2.20     0.15    7/31/07 2:30

  84          38    33    69     1     3400    2.27     0.15    7/31/07 6:51

  85          38    19    68     52    3800    2.53     0.15    7/31/07 11:01

  86          38    5     68     42    4300    2.87     0.15    7/31/07 15:28

  87          37    52    68     31    4400    2.93     0.15    7/31/07 20:18

  88          37    37    68     22    4600    3.07     0.15    8/1/07 1:10

  89          37    23    68     13    4700    3.13     0.15    8/1/07 6:10

  90          37    8     68     4     4900    3.27     0.15    8/1/07 11:16

  91          36    54    67     54    4950    3.30     0.15    8/1/07 16:30

  92          36    39    67     44    4950    3.30     0.15    8/1/07 21:46

  Waypoint    40    20    69     16    0       0.00     0       8/2/07 20:33

  93          40    30    69     15    66      0.11     0.65    8/2/07 21:41

  Waypoint    40    38    69     18    0       0.00     0       8/2/07 23:09

  Waypoint    40    30    69     7     0       0.00     0       8/3/07 0:08

  94          40    51    69     1     73      0.12     0.65    8/3/07 2:29

  Waypoint    40    53    68     55    0       0.00     0       8/3/07 3:39

  95          41    5     68     52    58      0.10     0.65    8/3/07 4:58

  96          41    38    68     47    146     0.24     0.65    8/3/07 9:23

  97          42    29    69     0     194     0.32     0.65    8/3/07 16:04

  98          42    44    69     41    238     0.28     0.65    8/3/07 20:46

  99          42    52    69     52    238     0.28     0.75    8/3/07 22:56

  100         42    53    70     8     51      0.09     0.65    8/4/07 1:20

  101         42    56    70     18    112     0.19     1.2     8/4/07 2:53

  102         42    60    70     25    97      0.16     1.3     8/4/07 5:00

  103         43    2     70     34    25      0.04     1.3     8/4/07 7:10

  104         43    3     70     40    15      0.03     1.5     8/4/07 9:01

  Waypoint    43    0     70     31    0       0.00     0       8/4/07 11:06

  Waypoint    42    38    70     30    0       0.00     0       8/4/07 12:58

  Waypoint    42    20    70     30    0       0.00     0       8/4/07 14:26

  Waypoint    42    20    70     32    0       0.00     0       8/4/07 14:32

  Waypoint    42    23    70     41    0       0.00     0       8/4/07 15:06

  Boston      42    23    70     48    0       0.00     0       8/4/07 15:30
  ----------- ----- ----- ------ ----- ------- -------- ------- --------------

**F. Underway Operations**

The ship shall continuously collect P-code GPS, ADCP, meteorological,
thermosalinograph (TSG), and bathymetric (Seabeam) data while underway.
The ship shall also collect 1-second heading information from both the
MAHRS gyro and SEAPATH GPS system for comparison and testing. A
comprehensive suite of underway measurements will be made by scientific
personnel as outlined in the individual project descriptions below.
Underway measurements of

trace gases will be conducted using an equilibrator installed and
operated by Shari Yvon-Lewis from Texas A&M University in the main
laboratory. Two underway pCO~2~ systems will be installed in the hydro
lab. An underway pCO~2~, DIC, and pH system will be run in the hydro lab
as well. An underway ammonia system will be installed in the
bio-analytical lab. Frequent discrete bottle samples will be taken from
the uncontaminated scientific seawater supply.

Most groups will request individual customized events files from the
chief survey technician at the start of the cruise. In addition the
chief scientist will request a full event log from the Ship\'s GPS event
files.

**G. Small Boat Operations**

No small boat operations are requested at this point. The request to
swap out a pCO~2~ system installed on a NDBC mooring at 31˚ 24\' N and
80[˚ 52\' W,]{.smallcaps} 40 nM Southwest of Savannah Georgia in Grays\'
Reef National Marine Sanctuary has been withdrawn . We have listed four
hours at this location to perform a comprehsive comparison with sensors
on the buoy.

**H. De-staging Plan**

De-staging will occur on August 4 and 5, 2007 after arrival of the ship
is in Boston, MA. All scientific equipment will be off-loaded at that
time. However, if there is room available on the ship we request that
the vans remain onboard till the ship arrives in Fort Lauderdale FL on
September 6, 2007.

**I. Meals and Berthing Plan**

Meals are required for up to 29 scientists, 3 times daily beginning one
hour before scheduled departure, extending throughout the cruise, and
ending two hours after the termination of the cruise. All NOAA FTE
Scientists will have proper travel orders when assigned to the NOAA Ship
Ronald H. Brown. It is the responsibility of the Chief Scientist to
ensure that the entire scientific party has a mechanism in place to
provide lodging and food and to be reimbursed for these costs in the
event that the ship becomes uninhabitable and/or the galley is closed
during any part of the scheduled project.\
\
Since the watch schedule is split between day and night, the night watch
may often miss daytime meals and will require adequate food and
beverages (for example a variety of sandwich items, cheeses, fruit,
milk, juices) during what are not typically meal hours. Special dietary
requirements for scientific participants will be made available to the
ship's command at least seven days prior to the GOMECC cruise.

**[FACILITIES]{.underline}**

**A. Equipment and Capabilities Provided by the Ship**

The following communications devices are currently on board the Ronald
H. Brown.

1.  High Frequency SSB (SEA 330): SEA Inc. 300-watt high frequency
    transceiver. The transceiver covers a frequency range from 1.6 to
    29.9 MHz

2.  Sperry Global Maritime Distress and Safety System (GMDSS)

3.  Satellite communication system (INMARSAT -A, -B, -M)

4.  Five fixed VHF radios with eight channels pre programmed with a
    selection of marine band and NOAA frequencies.

5.  Cell phones

The electronic instrumentation used for navigation includes:

6.  Trimble Centurion P-code GPS

7.  Magnavox MX-200 GPS

8.  Northstar 941x differential GPS

9.  Sperry Mark 37 Gyro Compass

10. Sperry Rascar Touch Screen navigational radar. (S-band (10 cm) 30 kW
    radar and an X-band (3 cm) 25 kW radar)

11. Simrad Robertson Dynamic Positioning System

12. Raytheon model DSN-450 Doppler Speed/distance log

13\. NAVTEX receiving and printing the international automated medium
frequency (518 KHz) weather warnings

14\. Weather maps: Medium frequency/high frequency

Scientific Equipment requested from the Ship:

1\. Echo Sounder (Ocean Data Equipment Corporation (ODEC) Bathy 2000 or
the Knudsen system) used in12 kHz mode (to track CTD package to within
10 meters of the bottom) to be used while on CTD station.

2\. Continuous Seabeam 2112 (12 kHz) swath bathymetric sonar system
sampling while underway between stations.

3\. Barometer

4\. WOCE IMET sensors

5.  Hydrographic Winch system and readouts (using 0.322 conducting cable
    for CTD operations).

6.  One backup hydrographic winch system for CTD operations.

7.  Hull mounted acoustic Doppler current profiler (RD Instruments
    (RDI), 75 kHz Ocean Surveyor acoustic Doppler current profiler) with
    gyro input.

8.  MAHRS gyro system for acquisition of heading data used by acoustic
    Doppler current profiler.

9.  Seapath GPS system for acquisition of heading data for testing the
    new MAHRS system.

**B. Equipment and Capabilities Provided by the Scientists**

In addition to the suite of oceanographic and meteorological instruments
on board the Ronald H. Brown, the science party will bring the following
instruments and materials on board (see appendix for full
specifications):

1\. Seabird 911+ CTD to collect profiles of depth. An altimeter will be
installed, but it is considered a backup to the shipboard 12kHz tracking
of the CTD package.

2\. General Oceanics 24 bottle rosette wheel to collect water samples
for comparison with the CTD profiles.

3\. Instrumentation to measure a variety of trace compounds in ocean
water and atmosphere as detailed in the summary of projects in Appendix
C.

# DISPOSITION OF DATA AND REPORTS

**A. Data Responsibilities**

The Chief Scientist will be responsible for the disposition, feedback on
data quality, and archiving of data and specimens collected on board the
ship for the primary project. As representative of the program manager
(Director, AOML), the Chief Scientist will also be responsible for the
dissemination of copies of these data to participants in the cruise, to
any other requesters, and to NESDIS in accordance with NDM 16-11 (ROSCOP
within 3 months of cruise completion). The ship may assist in copying
data and reports insofar as facilities allow.

The Chief Scientist will receive all original data gathered by the ship
for the primary project, and this data transfer will be documented on
NOAA Form 61-29 \"Letter Transmitting Data\". The Chief Scientist in
turn will furnish the ship with a complete inventory listing all data
gathered by the scientific party detailing types and quantities of data.

Individuals in charge of piggyback projects conducted during the cruise
have the same responsibilities for their project\'s data as the Chief
Scientist has for primary project data. All requests for data should be
made through the Chief Scientist.

The Commanding Officer is responsible for all data collected for
ancillary projects until those data have been transferred to the
project\'s principal investigators or their designees. Data transfers
will be documented on NOAA Form 61-29. Copies of ancillary project data
will be provided to the Chief Scientist when requested. Reporting and
sending copies of ancillary project data to NESDIS (ROSCOP) is the
responsibility of the program office sponsoring those projects.

DATA REQUIREMENTS

The ship\'s SCS system should log the following parameters:

PCODE_TIME (HHMMSS)

PCODE_LAT (DEGMIN)

PCODE_LON (DEGMIN)

PCODE_QUALITY (1=std)

PCODE_COG (Degrees)

PCODE_SOG (Knots)

MK37-Gyro (Degrees)

PCODE-SOG-msec (M/SEC)

TSG_Unit_Temp (Degrees_C)

TSG_Conductivity (Mega_Mhos)

TSG_Salinity (PPT)

Barometer (MB)

Precip9-trwlhs (mm/hr)

Imet-Rain (mm)

Imet-Rel_Hum (Percent)

Imet-Temp (Degrees_C)

Fluoro-Value (PPM)

Imet-TWind1-Speed-MSEC (M/SEC)

Imet-Twind1-Dir (Degrees)

Imet-Rwind2-Spd-Knts (Knots)

Imet-TWind2-Speed-KNTS (Knots)

Imet-TWind2-Dir (Degrees)

Bottom Depth (meters)

The ship shall record ADCP raw data continuously during the cruise.

The following data products will be produced by the ship and will be
given to the Chief Scientist at the end of each leg:

a\. Navigational log sheets (MOAs);

b\. SCS tapes;

c\. ADCP raw data on CD/DVD

**B. Pre- and Post-Cruise Meetings**

A pre-cruise meeting between the Commanding Officer and the Chief
Scientist will be conducted either the day before or the day of
departure, with the express purpose of identifying day-to-day project
requirements, in order to best use shipboard resources and identify
overtime needs.

If desired, upon completion of the cruise, a post-cruise meeting will be
held and attended by the ship's officers, the Chief Scientist and
members of the scientific party, the Vessel Coordinator and the Port
Captain to review the cruise. Concerns regarding safety, efficiency, and
suggestions for improvements for future cruises should be discussed.
Minutes of the post-cruise meeting will be distributed to all
participants with email to the <CO.MOC.Atlantic@noaa.gov> and
<ChiefOps.MOA@noaa.gov> .

**C. Ship Evaluation Report**

Within seven days of the completion of the cruise, a Ship Operation
Evaluation form is to be completed by the Chief Scientist. The preferred
method of transmittal of this form is via email to
<OMAO.Customer.Satisfation@noaa.gov>. If email is not an option, a hard
copy may be forwarded to:

Director, NOAA Marine and Aviation Operations

NOAA Office of Marine and Aviation Operations

8403 Colesville Road, Suite 500

Silver Spring, MD 20910

A Ship Operations Evaluation Report will be completed by the Chief
Scientist and given to the Director, AOML, for review and then forwarded
to OMAO.

**[ADDITIONAL PROJECTS]{.underline}**

**A. MOC Directives**

Any additional work will be subordinate to the primary project and will
be accomplished only with the concurrence of the Commanding Officer and
the Chief Scientist(s).

The following projects will be conducted by ship\'s personnel in
accordance with the general instructions contained in the MOC
Directives, and conducted on a not-to-interfere basis with the primary
project:

a\. SEAS Data Collection and Transmission

b\. Marine Mammal Reporting

c\. Bathymetric Track line

d\. Weather Forecast Monitoring

e\. Sea Turtle Observations

f\. Automated Sounding Aerological Program

**B. Underway Measurements in support of Global Carbon Cycle Research**

The underway sensors on RHB will be used in support of the objectives of
the Global Carbon Cycle Research (GCC) to quantify the uptake of carbon
by the world\'s ocean and to understand the bio-geochemical mechanisms
responsible for variations of partial pressure of CO~2~ in surface water
(pCO~2~). This work is a collaborative effort between the CO~2~ groups
at AOML and PMEL.

Principal investigators:

Dr Rik Wanninkhof, AOML 305-361-4379 rik.wanninkhof@noaa.gov

Contact person:

Mr. Robert Castle, AOML 305-361-4418 robert.castle@noaa.gov

The semi-automated instruments are installed on a permanent basis in the
hydro lab of RHB. All work is performed on a not-to-interfere basis and
does not introduce any added ship logistic requirements other than the
continuous operation of the bow water pump and thermosalinograph. The
chief scientist assumes responsibility of the hazardous materials aboard
RHB for this project. A list of the HAZMAT associated with this project
is provided in Appendix A.

**[HAZARDOUS MATERIALS]{.underline}**

**A. Policy Compliance**

*RONALD H. BROWN* will operate in full compliance with all environmental
compliance requirements imposed by NOAA. All hazardous materials and
substances needed to carry out the objectives of the embarked science
mission, including ancillary tasks, are the direct responsibility of the
embarked designated Chief Scientist, whether or not that Chief Scientist
is using them directly. The ship\'s Environmental Compliance Officer
(ECO) will work with the Chief Scientist to ensure that this management
policy is properly executed, and that any problems are brought promptly
to the attention of the Commanding Officer. Scientific HAZMATS will not
be left aboard without a trained spill responder from the science party
remaining aboard with them.

The scientific party, under supervision of the Chief Scientist, shall be
prepared to respond fully to emergencies involving spills of any mission
HAZMAT. This includes providing properly trained personnel for response,
as well as the necessary neutralizing chemicals and clean-up materials.
Ship\'s personnel are not first responders for chemicals brought aboard
by the scientific party and will act in a support role only in the event
of a spill.

The Chief Scientist is directly responsible for the handling, both
administrative and physical, of all scientific party hazardous wastes.
No liquid wastes shall be introduced into the ship\'s drainage system.
No solid waste material shall be placed in the ship\'s garbage.

**B. Inventory**

The Chief Scientist will provide the Commanding Officer with an
inventory indicating the amount, concentrations, and intended storage
area of each hazardous material brought onboard, and for which the Chief
Scientist is responsible (see Appendix A). This inventory shall be
updated at time of offload, accounting for the amount of material being
removed, as well as the amount consumed in science operations and the
amount being removed in the form of waste.

The ship\'s dedicated HAZMAT Locker contains two 45-gallon capacity
flammable storage cabinets and one 22-gallon capacity flammable storage
cabinet. Unless there are dedicated storage lockers (meeting OSHA/NFPA
standards) in each van, all HAZMAT, except small amounts for ready use
and those that must remain in a temperature controlled environment, must
be stored in the HAZMAT Locker.

**C. MSDS**

All hazardous materials require a Material Safety Data Sheet (MSDS). The
Chief Scientist shall have copies of each MSDS available when the
hazardous materials are loaded aboard. Hazardous material for which the
MSDS is not provided will not be loaded aboard.

**[RADIOACTIVE ISOTOPES]{.underline}**

No radioactive isotopes will be used on this cruise.

**[MISCELLANEOUS]{.underline}**

**A. Scientific Berthing**

The Chief Scientist is responsible for assigning berthing for scientific
party within the spaces designated as scientific berthing. The ship will
send current stateroom diagrams to the Chief Scientist showing
authorized berthing spaces. The Chief Scientist is responsible for
ensuring the scientific berthing spaces are left in the condition in
which they were received; for stripping bedding and linen return; and
for the return of any room keys which were issued.

The Chief Scientist is also responsible for the cleanliness of the
laboratory spaces and the storage areas utilized by the scientific
party, both during the cruise and its conclusion prior to departing the
ship.

All persons boarding NOAA vessels give implied consent to comply with
all safety and security policies and regulations which are administered
by the Commanding Officer. All spaces and equipment on the vessel are
subject to inspection or search at any time. All personnel must comply
with OMAO\'s Drug and Alcohol Policy dated May 7, 1999, which forbids
the possession and/or use of illegal drugs and alcohol aboard NOAA
Vessels.

**B. Medical Forms and Emergency Contacts**

The Chief Scientist will provide medical forms for all cruise
participants as soon as practical and no less than four weeks prior to
departure to the medical officer in Norfolk.

Prior to departure, the Chief Scientist must provide a listing of
emergency contacts to the Executive Officer for all members of the
scientific party, with the following information: name, address,
relationship to member, and telephone number.

**C. Shipboard Safety**

Wearing open-toed footwear or shoes that do not completely enclose the
foot (such as sandals or clogs) outside of private berthing areas is not
permitted. Steel-toed shoes are required to participate in any work
dealing with suspended loads, including CTD deployments and recovery.
The ship does not provide steel-toed boots. Hard hats are also required
when working with suspended loads. Work vests are required when working
near open railings and during small boat launch and recovery operations.
The ship when required will provide hard hats and work vests.

**D. Communications**

The Chief Scientist or designated representative will have access to
ship\'s telecommunications systems on a cost-reimbursable basis. Where
possible, it is requested that direct payment (e.g. by credit card) be
used as opposed to after-the-fact reimbursement. Ship\'s systems
include:

*1. INMARSAT-B*

INMARSAT-B provides high quality voice and fax communications (9600
baud) and high-speed data transmission, including FTP; it is the primary
means of transferring email. Cost is \$2.60/min for voice and fax;
\$7.25/min for high speed. INMARSAT-B calls may be made collect or
charged to credit card; cost is approximately \$2.60/min \*\*.

*2. INMARSAT-M*

INMARSAT-M (or Mini-M) provides medium quality voice communications.
Cost is \$2.15/min. INMARSAT-M may be charged to credit card or collect.

*3. INMARSAT-A*

INMARSAT-A provides high quality voice communications as a backup
system. It can also provide fax communications (9600 baud) and
high-speed data transmission, including FTP. Cost varies from \$2.65/min
to \$5.60/min for voice and fax depending on vendor and peak vs.
off-peak rates. High speed costs \$10.80 - \$15.60/min. INMARSAT-A may
be charged to credit card or collect.

\*\*Note: All rates listed are based on direct-dialed business calls to
the US. Collect, or calls charged to credit calls are charged higher
rates, subject to additional fees, and may have minimum charges.

*4. E-mail*

An e-mail account for each embarked scientist will be established by the
ship\'s LET. The account name will use the person\'s first and last name
as listed in Personnel Section. The e-mail address for scientists will
use the format: firstname.lastname.atsea@rbnems.ronbrown.omao.noaa.gov

Example: molly.baringer.atsea@rbnems.ronbrown.omao.noaa.gov

Each member of the ship\'s complement (crew and scientists) will be
authorized to send/receive up to 15 KB (approximately 3 pages of text)
of data per day (\$1.50/day or \$45/month) at no cost. The individual
must reimburse e-mail costs accrued in excess of this amount. At or near
the end of each leg, the Commanding Officer will provide the Chief
Scientist with a detailed billing statement for all personnel in his
party. Prior to their departure, the chief scientist will be responsible
for obtaining reimbursement from any member of the party whose e-mail
costs have exceeded the complimentary amount.

*5. Contacts*

Important phone numbers, fax numbers and e-mail addresses: (Up-to-date
phone numbers can be found on the MOC web site at
www.moc.noaa.gov/phone.htm#RB)

RONALD H. BROWN (to call from US)

\- INMARSAT-B VOICE: 011-OAC-336-899-620 (approx \$2.60/min)

\- INMARSAT-B FAX: 011-OAC-336-899-621

\- INMARSAT \"M\" VOICE: 011-OAC-761-831-360 (approx \$2.99/min)

\- INMARSAT-A VOICE: 011-OAC-154-2643 (approx \$5.60/min)

\- CELLULAR: 757-635-0678

\- OOD CELLULAR: 206-910-3584

NOTE: For RB-07-05 cruise, the ship will be operating in range of the
Atlantic Ocean Satellite (West) with Ocean Area Code (OAC) = 874.

E-mail addresses:

MOP radio room: Radio.Room@noaa.gov

Commanding Officer, RHB CO.Ronald.Brown@noaa.gov

Executive Officer, RHB XO.Ronald.Brown@noaa.gov

Field Operations Officer, RHB FOO.Ronald.Brown@noaa.gov

Medical Officer, RHB Medical.Ronald.Brown@noaa.gov

**E. Port Agent Services/Billing**

There will be no port agents for the cruise such that the following is
not applicable. Contractual agreements exist between the port agents and
the Commanding Officer for services provided to NOAA Ship *RONALD H.
BROWN*. The costs for any services arranged through the ship\'s agents
by the scientific program, which are considered to be outside the scope
of the agent/ship support agreement, will be the responsibility of that
program. Where possible, it is requested that direct payment be arranged
between the science party and port agent, as opposed to after-the-fact
reimbursement to the ship\'s accounts.

**F. Wage Marine Working Hours and Rest Periods**

The Chief Scientist shall be cognizant of the reduced capability of
*RONALD H. BROWN\'s* operating crew to support 24-hour mission
activities. Wage marine employees are subject to negotiated work rules
contained in the applicable collective bargaining agreement.
Dayworkers\' hours of duty are a continuous eight-hour day, beginning no
earlier than 0600 and ending no later than 1800. It is not permissible
to separate such an employee\'s workday into several short work periods
with interspersed non-work periods. Dayworkers called out to work
between the hours of 0000 and 0600 are entitled to a rest period of one
hour for each such hour worked. Such rest periods begin at 0800 and will
result in such a dayworker being unavailable to support science
operations until the rest period has ended. All wage marine employees
are supervised and assigned work only by the Commanding Officer or
his/her designee. The Chief Scientist and the Commanding Officer shall
consult regularly to ensure the shipboard resources available to support
the science mission are utilized safely, efficiently, and in accordance
with the above policies.

**[APPENDICES]{.underline}**

**Appendix A. List of Chemicals (a full list with MSDS sheets will be
provided by the chief scientist at the start of the cruise)**

CHEMICAL REAGENTS USED FOR THE

DETERMINATION OF DISSOLVED OXYGEN IN SEA WATER

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Manganese Chloride 4 Liters, (600gr/Liter) Solution

Alkaline Sodium Iodide 4 Liters, (320gr. Sodium Hy- Solution

droxide + 600gr. Sodium Iodide,

in each liter).

Sulfuric Acid 2 Liters, 280ml/Liter Dilute Solution

Dilute H2SO4 4 Liters

Sodium Thiosulfate 10 Liters, 10gr/Liter Very Dilute Solution

> 10 vials of 10gr. Thiosulfate Granular Salt

Potassium Iodate 1 Liter, (0.3567gr/Liter) Std. Very Dilute Solution

Primary Standard

Triton(R) X-100 1 Liter (Polyethylene Glycol Solution

Octylphenyl Ether)

KIO3 O2 Standard 3 Liters

CHEMICAL REAGENTS USED FOR THE

DETERMINATION OF HALOCARBONS IN SEA WATER AND AIR

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Acetone 4 Liters (1 x 4L bottle) Solvent

Isopropanol 4 Liters (1 x 4 L bottle) Solvent

Sulfuric Acid 500 mL (250mL/500mL) Solution

Helium, compressed 5 steel cylinders Carrier Grade Compressed Gas

Air, compressed 2 aluminum cylinders (size a) Compressed Gas

Air, compressed 2 34 L steel tank Compressed Gas

CHEMICAL REAGENTS USED FOR THE

MEASUREMENT OF PARTIAL PRESSURE OF CO~2~ (DISCRETE pCO~2~) AND TOTAL
DISSOLVED INORGANIC CARBON (DIC)

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Carbon Dioxide 6 Scotty 48 L cylinders

Nitrogen 2 Size A steel cylinders

Air (CO2 in air) 2 Size B steel cylinders

Acetone 6 L bottles

Coulometer Anode Solution 10 16 oz. Bottles

Coulometer Cathode

Solution 5 g bottles

Magnesium Perchlorate 2 500 g bottles

Potassium Iodate 2 500 g bottles

Sodalime 2 500 g bottles

Phosphoric Acid 3 500 ml bottles

Mercuric Chloride (conc) 2 500 ml bottles

Isopropyl Alcohol 2 500 ml bottles

Silica Gel (ORBO tubes) 120 tubes

CHEMICAL REAGENTS USED FOR THE

MEASUREMENT OF NUTRIENTS (NO~3,~ NO~2,~ NH~4,~ PO~3~ and Si(OH)~4~)

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Acetone 1 L

Ammonium Molybdate 120 g

Ascorbic Acid 170 g

Brij-35 100 ml

Cadmium Metal 25 g

Culpric Sulfate

Pentahydrate 40 g

EDTA Disodium 50 g

Hydrazine Sulfate 80 g

HCI 7.5 L

Imidazole 70 g

Isoproply Alcohol 100 ml

NEDA 10 g

Oxalic Acid 400 g

Phenol 50 g

Sodium Citrate 1120 g

Sodium Dichloroiso-

cyanurate (Na.DTT) 50 g

Sodium Hydroxide 50 g

Sodium Nitroferricyanide 10 g

Sulfuric Acid 1 L

Ammonium Chloride 1 L

Formaldehyde 20 L Dilute Solution

Sodium Sulfide 11 g

o-Phthalaldehyde 10 L Dilute Solution

Methyl Alcohol 2 L

CHEMICAL REAGENTS USED FOR THE

MEASURMENT OF OCEAN COLOR, DOC, DIC, NO~3~

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Saturated HgC12 200 ml

CHEMICAL REAGENTS USED FOR THE

MEASURMENT OF PHYTOPLANKTON PIGMENT DISTRIBUTION

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Liquid N2 40 Liters

CHEMICAL REAGENTS USED FOR THE

MEASURMENT OF OZONE FLUX

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Nitric Oxide, UHP 99.5% 1 size 3P cylinder

Nitric Oxide, 1% 1 size 3P cylinder

NO CP GGRade 99.5% 2 size 003 cylinders

CHEMICAL REAGENTS USED FOR THE

MEASURMENT OF TOTAL ALKALINITY (TAlk)

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

N2 1 80 cf cylinder

CHEMICAL REAGENTS USED FOR THE

MEASURMENT OF IN-SITU SEAWATER PH

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Hydrochloric Acid 1 L

CO2 Standards 3 cylinders, 75 cu ft 1/3 of normal size

Phenol Red (2 uM) 20 L Solution

Bromcresol Purple (2 uM) 20 L Solution

Thymol Blue (1 uM) 2 L Solution

Sodium Carbonate

(1000 uM) 20 L Solution

Lauryl Sulfate 5% 0.5 L Solution

CHEMICAL REAGENTS USED FOR THE

MEASURMENT OF PRODUCTION RATES OF ALKYL NITRATES

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

Liquid Nitrogen 100 L

Methanol 4 L

Sodium Nitrite 2 g

Sulfanilamide 10 g

N(1-Naphthyl)ethylene-

diamine dihydrochloride 26 g

HCI (conc) 500 mL

Helium 600 cu feet (2 cylinders)

Drierite 2 kg

CHEMICAL REAGENTS USED FOR THE

MEASUREMENT OF CDOM AND CO

[NAME OF CHEMICAL]{.underline} [AMOUNT OF CHEMICAL]{.underline}
[COMMENTS]{.underline}

N2 (compressed gas) 2 300 SCF compressed

CO in N2 (1 ppm) 1 300 SCF compressed

CO in N2 (500 ppb) 1 bench top cylinder

Mercuric Oxide 1 g

Schutze Reagent 200 g

Concentrated HCI 2.5 L

HCI (10%) 7.5 L

Molecular Sieve (washed) 50 g

Drierite 1 kg

Sodium Sulfate 1 kg

**Appendix B. Equipment/Van List**

**1. Oxygen** SITE: Oceanographic Lab

WT: 200 kg

SIZE: Small miscellaneous equipment

tools, & laptops

> Oxygen Equipment:
>
> 1\. Sample bottles- 10 blue plastic cases, 24 x 16 x 12, 20 lb each.
>
> 2\. Reagents- 2 blue plastic cases, 24 x 18 x 14, 50 lbs each.
>
> 3\. Titration Equipment- 1 aluminum box, 24 x 24 x 16, 70 lbs.
>
> 4\. Misc. supplies- 2 cardboard boxes, 16 x 15 x 14, 30 lbs each.
>
> Misc. Equipment

1.  Instruction manuals

2.  2 computers, 16x16x10, 20 lbs total

3.  2 laptops, 14x2x9, 10 lbs total

4.  2 LCD monitors, 16x12x2, 4 lbs total

5.  2 tool boxes, 30"x16"x30", 200 lbs total

6.  2 boxes misc. supplies, 16"x16"x36", 150 lbs total

**2. CTD Rosette with LADCP** SITE: Computer Lab

WT: 1 ton

SIZE: 4\'L x 4\'W x 6\'H

SITE: Standard CTD Location

1.  3- Seabird 9 CTDs, 8"x8"x36", 90 lbs total

2.  1 -- RDI LADCP system, 400 lbs

3.  1 -- "AOML" LADCP 150 kHz system plus batteries, 24"x24"x6'400 lbs

4.  2 -- "AOML" 300 kHz ADCP workhorses, 12"x16"x20", 80 lbs total

5.  2 -- CTD frame, underwater sampling package, 6.5'x48"diameter, 1300
    lbs/each

6.  2 boxes CTD sensors, 16"x18"16, 30 lbs total

7.  

**3. TAlk equipment** SITE: Hydro Lab

The TAlk titrator has a small size of less than 0.3x0.3x0.3 m. The DIC
analyzer has a small size of less than 0.5x0.3x0.3 m. We need a bench
space of 3-m. We are expecting a total size of 1x1x1 of sample bottle
volume for Ca^2+^. We will bring a small N~2~ gas (99.999%) tank (\~80
ft^3^) for DIC measurement.

**4. Alkyl Nitrates** SITE: Oceanographic Lab

Size/weight of equipmen**t:** \~1500 lbs, 15 linear feet, would like 2
5' tables perpendicular to the bulkhead bench near the overboard sink,
one at bench height and one at table height and at least

**5. CDOM and CO equipment** SITE: Oceanographic Lab

> Bottles are stored in 5 or 6 coolers until collection and then need
> refrigeration while on the ship (50 lbs empty, 150 lbs full). The SRI
> GC is about 50 lbs and 3'W x2'H x2'D with adjacent bench-space needed
> for a notebook computer. The deck-box and notebook computer for the
> optical gear are small and light (deck-box smaller footprint than
> notebook). The Satlantic optical gear can be stored on deck and,
> altogether weigh about 100 lbs. The 200 m Kevlar cable can also be
> coiled and stored outside, weighing about 50 lbs, coiled and hung off
> the deck when not in use. No special power requirement other than
> normal 120 AC for any equipment.

6\. **HCFC tracer equipment** SITE: Oceanographic Lab

WT: 1.5 ton

SIZE: Equipment, tools, & computers

SITE: Oceanographic Lab

  ---- -------- ------- -------- ------------------------------------- --------
  \#   Length   Width   Height   Description                           Weight
                                                                       (lbs.)

  1    41.12    37.12   30.97    Gas Chromatograph, Mass Spectrometer  200

  2    29.06    27.00   30.62    Electronic module, power supply,      59
                                 toaster oven                          

  3    32.75    20.87   51.31    Chiller, cold block, 3 carboys, 2     300
                                 variacs                               

  4    32.75    20.87   23.31    Valve housing w/ 3 valves, fittings   60

  5    27.75    26.25   23.69    4 vacuum pumps,                       152

  6    25.50    24.06   31.99    Computer, monitor, keyboard, mouse,   85
                                 software                              

  7    25.50    24.06   26.37    2^nd^ valve housing                   67

  8    25.50    24.06   26.37    Tools, supplies                       150

  9    42.75    30.75   33.24    Purge module w/ autosampler, gas      200
                                 purifiers                             

  10   25.50    24.06   28.06    Buckets, ropes, tie-downs             60

  11   25.50    24.06   28.06    Glassware - syringes, spargers,       60
                                 sample bulbs                          

  12   27.00    28.00   31.00    Pumpboard, tubing                     60

  13   28.50    28.50   22.00    Flasks, ducting, filters              100

  14   36.00    26.00   26.00    Spares: CPU, electronics, pump        125

  15   32.75    20.87   51.31    Chiller, cold block                   260

  16   30.00    20.00   20.00    Small steel cylinder                  75

  17   41.12    37.12   30.97    2^nd^ GC and Mass Spectrometer        200

  18   29.06    27.00   30.62    2^nd^ electronic module               100

  19   42.75    30.75   33.24    Equilibrator                          150

  20            8.00    53.00    Air, compressed                       76

  21            8.00    53.00    Air, compressed                       76

  22            9.00    56.00    Helium, compressed                    110

  23            9.00    56.00    Helium, compressed                    110

  24            9.00    56.00    Helium, compressed                    110

  25            9.00    56.00    Helium, compressed                    110

  26            9.00    56.00    Helium, compressed                    110
  ---- -------- ------- -------- ------------------------------------- --------

**7. Ocean Color, DOC, DIC, NO~3~^-^** SITE: Wet Lab

Size/weight of equipment: \<100kg.

**8. Partial pressure of CO~2~ (discrete pCO~2~) and total dissolved
inorganic carbon (DIC)**

SITE: Van

A laboratory van containing the pCO~2~ and DIC measurement systems will
be placed onboard in Galveston. The van will contain two DIC analyzers
and a pCO~2~ analyzer along with 8 compressed gas standards (6 with
CO~2~ in air and two with compressed ultra pure nitrogen), sample
bottles, and auxiliary equipment. The pertinent information for the
laboratory van is listed below.

**CO~2~ van**

Weight 12000 lbs

Size 8\' x 8\' x 20\'

Power input 30 amps, 3 phase, and 440v.

Location 01 deck aft

Door: center, right side of van

Needs compressed air, fresh water available, phone and Ethernet.

Contact Person: Esa Peltola, AOML, esa.peltola@noaa.gov

The container is ISO fitting compatible. Investigators will arrange the
shipping so that the vans will be delivered for loading on the desired
date. Coordination of a rental crane for loading the vans on the RONALD
H. BROWN may save costs. The contact for crane scheduling is Esa Peltola
(AOML). After loading, adequate electric power will be needed in the
vans while in-port for testing of the analytical instruments.

**9. Direct measurements of air-sea gas transfer during GOMECC**

SITE: Oceanographic Lab

The majority of the sensors for the flux system are located on the jack
staff. Additional sensors in other locations include: floating SST
sensor (Sea snake) on a horizontal pole off the port side; Downward IR
and Solar flux radiometers on a vertical pole on the 02 deck; fast ozone
system is in a rectangular container (see Fig. 1) on the forward 03
deck. A sampling line is run from the sensor on 03 to the jack staff. A
second box containing pumps is mounted on 03. The CO~2~ system consists
of two Licor-7500 units enclosed in ventilated tubes. The ventilation
pump will be located with the Ozone system. Computers are located in the
Science Lab.

**Size/weight of equipment:**

\*The flux system is a cluster of sensors and wireless data transmission
units. Size and weight are difficult to classify.

\*The ozone system is two containers total weight about 500 lbs.

The flux system is already installed on the Ronald H. Brown. The CO~2~
and Ozone sensors will be installed in Galveston. The ozone sensor was
on the Brown for two previous experiments (TexAQS 2006 and Stratus
2006). A crane will be required to lift the ozone system to the 03 deck.
The CO~2~ system has not been deployed on Brown, but it can be hand
carried up the jack staff. The CO~2~ and Ozone systems may (or may not)
use the same ventilation tube.

10. **Measurement of Ozone flux by eddy correlation** SITE: O3 Deck

Size/weight of equipment: The instrument is composed of 2 boxes. The
white box contains the pumps, and the grey box hold the ozone sensor,
the acquisition system and another UV monitor used for calibration (see
figures 1 and 2 below).

White box information:

Weight 70 lbs

Size 24" x 19" x 19"

Power input 115V, connected to grey box

Location 03 deck aft

Grey box information:

Weight 300 lbs

Size 27" x 45" x 36"+8"

Power input 2x 115 V

Location 03 deck aft

![](media/image2.jpeg){width="3.4270833333333335in" height="2.58125in"}

*Figure 1.* Deployment of the ozone flux system during Texaqs cruise
2006.

The grey and white boxes are located on the 3^rd^ deck. The sampling
line is running from the grey box to the jack staff.

![](media/image3.jpeg){width="5.75in" height="4.3125984251968505in"}

Figure 2. Configuration during Texaqs 2006.

**11. Profiling pH and underway pH/DIC and pCO~2~** SITE: Hydro Lab and
Wet Lab

The SEAS II to be connected to the CTD/rosette frame weights about 70
lbs.

The underway system with calibration standards will be placed in the
hydro lab. The equipment is estimated to be 500 lbs.

**12. Phytoplankton pigment distribution** SITE: Oceanographic Lab

Filtration rig and sample bottles requiring 4-6 feet of bench space and
two 20 liter dewars of liquid N~2~, totaling 40 liters of liquid N~2~.

**Appendix C: Synopses of Individual Projects.**

**A.** **Total Alkalinity (TAlk) measurements and assessing its
production and export**

*Principal investigator:* Wei-Jun Cai (UGA)

*Cruise participants:* Yongchen Wang (UGA research scientist) and Wei
Jen Huang (UGA graduate student)

*Summary of scientific objectives:*

1)  Measuring Total Alkalinity (TAlk) on all water samples;

2)  Comparing UGA DIC analysis (based on 0.5 mL sample and a Li-Cor
    CO~2~ analyzer) with the AOML DIC analysis (SOMMA).

3)  Assessing TAlk river flux, production in continental shelf and upper
    slope, and export flux to the open ocean.

4)  Taking water samples home for Ca^2+^ analysis to examine the role of
    CaCO~3~ dissolution and its contribution to TAlk export.

*Sampling and Analysis:*

1)  All hydrocast water samples will be titrated for TAlk on board ship.
    TAlk samples will be collected from the 10-L Niskin bottles into 250
    ml glass-stoppered bottles (no HgCl~2~ added; but a comparison of w/
    and w/o HgCl~2~ will be done on board).

2)  If time permits, the DIC comparison will be done on board as well;
    otherwise a subset of samples will be taken home for analysis.
    Sample bottle volume is 250-mL. The DIC sample will be taken from
    the same Niskin bottle that AOML group takes their DIC sample.

3)  For every other station, we will take water samples for Ca^2+^
    analysis. Sample bottle volume is 120-mL.

*Location of setup:* Oceanographic Lab

**B. Halocarbons and Alkyl Nitrates in the Coastal Ocean**

*Principal investigator:* Shari Yvon-Lewis (Texas A&M)

*Cruise participants:* Shari Yvon-Lewis, Julia O'Hern (Texas A&M)

*Summary of scientific objectives:* We have 3 major objectives:

1\) assessment of the sources and emission of selected very short-lived
halocarbons in the coastal ocean,

2\) measuring the flux of alkyl nitrates from the coastal ocean, and

3\) determination of CFC and HCFC tracers at depth in the coastal ocean.

Biogenic very-short-lived halocarbons are potentially significant
sources of bromine to the stratosphere. Recent results suggest that
coastal emissions of these gases may be up to 5 times the amount emitted
by the global open ocean. The data collected during this cruise will
help assess the impact of coastal emission on the global budgets of
these gases. Additionally, we will be examining the emission of alkyl
nitrates from the coastal ocean and their subsequent impact on ozone in
the coastal marine boundary layer.

*Sampling and Analysis:* We will collect and analyze samples from the
hydrocasts conducted during this cruise. Samples will be collected using
100mL glass syringes and analyzed using a purge and trap gas
chromatograph with mass spectrometer. We will also measure the
saturation state of the gases (Halocarbons and alkyl nitrates) using a
continuous underway gas chromatograph with mass spectrometer. An air
line is run to the bow for continuous air side measurements, and an
equilibrator is used for the water-side measurements.

*Location of setup (if known):* Oceanographic Lab - aft

**C. Production rates of low-molecular weight alkyl nitrates.**

*Principal investigator:* Elizabeth Dahl (Loyola College of Maryland)

*Cruise participants:* Elizabeth Dahl and Kevin Murawski (Loyola)

*Summary of scientific objectives:* The oceans are the major source of
C1-C3 alkyl nitrates to the troposphere, yet their production mechanism
in seawater has not been characterized. One possible mechanism that has
previously been investigated is the reaction ROO+NORONO~2~ (where R is
an alkyl group). The production rates in filtered and unfiltered
seawater samples as a function of nitrite (as a source of NO)
concentration will be measured. The production rates will be compared to
concentration measurements determined by Shari Yvon-Lewis. Production
rates have not previously been determined in coastal waters and it is
expected that the formation of alkyl peroxy radicals will be
significantly different from previous alkyl nitrate studies.

*Sampling and Analysis:* Surface water will be used in most experiments.
Water usage is 3.0 liters from one niskin bottle from one cast in the
early morning or night (flexible) every other day. Sample order is
flexible and going last is fine since initial concentrations of
dissolved gases are not important to the experiment. A portion of water
collected will be gravity filtered directly from the CTD. Bucket casts
may be used if necessary followed by filtration. Samples will be
analyzed for alkyl nitrates and nitrite and aliquoted into incubation
samples. Incubation will take place over the brightest part of the day
with the majority of analyses occurring in the early morning and
evening/night. We would also like to collect several carboys of filtered
oligotrophic (or as oligotrophic as we can get) water for use in the
laboratory at Loyola.

*Location of setup (if known):* Preferably forward in the oceanographic
lab near the overboard sink.

*Size/weight or equipment:* \~1500 lbs, 15 linear feet, would like two
5' tables perpendicular to the bulkhead bench near the overboard sink,
one at bench height and one at table height and at least 5 feet of
bulkhead bench space between the tables. Will also install a small deck
incubator with flowing seawater on the aft deck. This space will be used
for purge and trap GC/MS, UV-Vis, sample preparation, and data analysis.
We also need to install 2 helium tanks in the main lab near the
equipment and two 50 L long life dewars of nitrogen in the main lab. We
will also install a small deck incubator with flowing non-scientific
seawater on the port side of the aft deck (on giant cleat near A-frame).
No smoking should occur near the incubator.

**D. Relating surface CDOM and CO measurements to ocean color and
photochemistry**

*Principal investigator:* W. L. Miller, UGA

*Cruise participants:* Heather Reader, UGA PhD student

*Summary of scientific objectives:* UV radiation drives photochemistry
in the surface ocean. Chromophoric Dissolved Organic Matter (CDOM) is
the main absorber of UV radiation and consequently can be related to
many photochemical products such as CO. New ocean color algorithms
developed in our lab (SeaUV & SeaUVc) will be tested for their accuracy
at predicting CDOM and subsequently for use in driving photochemical
models of CO production to compare with coastal distributions with CO.

*Sampling and Analyses :* Heather Reader will collect samples for CDOM
analysis and photochemical experiments back at UGA at the hydrocast
stations. Samples will be 0.2um filtered from the 10-L Niskin bottles
into 60 ml brown glass bottles for CDOM and larger bottles for
photochemistry. Samples will be stored at 4 C in coolers until the end
of the cruise. CO will be measured by gas chromatography at discrete
time intervals from a gas equilibrator throughout the cruise. This will
require a surface water source and bench space adjacent to a sink. A CO
standard gas cylinder and carrier gas cylinders will need to be place in
close proximity. Heather will also coordinate activities with Joe
Salisbury's group (UNH) to deploy [our Satlantic Micropro profiler and
Ocean Color buoy at solar noon each day regardless]{.underline} of
location. These are deployed by hand using a rail mounted roller system
(if required) and data is logged through a deck unit to a notebook. A
Satlantic UV radiation sensor (12"H x 5" diameter cylinder) may need to
be mounted somewhere clear on the top deck.

**E. Ocean color, DOC, DIC, NO~3~^-^**

*Principal investigators:* Joe Salisbury (UNH), Doug Vandemark, (UNH)

*Cruise participants:* Joe Salisbury, Amanda Plagge, Jennifer St. Louis
(UNH)

*Summary of scientific objectives:* Ongoing research at UNH seeks to
quantify relationships that relate ocean color data to salinity and
organic & inorganic carbon parameters.

Sampling and Analysis: inorganic nutrients (filtered), HPLC pigments
(GFF filter, freeze in liquid N), DIC (25 ml. preserve w/1.5ug HgCl~2~),
DOC (50 ml. freeze @ 0C), continuous surface scattering \@660nm, f-chl,
f-dom, oxygen, NO~3~^-^.

*Sampling and Analyses:* Penny Vlahos of U. Connecticut will supplement
the DOC analyses and analyze for d13C. This requires about 150ml surface
and 10m at every other station. She also desires occasional sampling of
1 other intermediate depth.

*Location of setup:* about 2 m^2^ of wet lab space needed; 10 liter
m^-1^ debubbled seawater):

Size/weight of equipment: \<100kg.

**F. Measurement of partial pressure of CO~2~ (discrete pCO~2~) and
total dissolved inorganic**

**carbon (DIC) on bottle samples**

*Principal investigator:* Rik Wanninkhof (AOML

*Cruise participants:* Kevin Sullivan, Robert Castle, and Esa Peltola
(AOML

*Summary of scientific objectives:* DIC and pCO~2~ are two of the four
inorganic carbon system parameters that are used to characterize the
oceanic carbon system. Together with the TAlk, pH and inorganic nutrient
measurements the observations will be used to estimate the effect of
riverine input, air-sea CO~2~ gas exchange, biological productivity and
lateral carbon exchange on the coastal carbon dynamics

*Sampling and Analyses:* The chemistry groups from AOML will measure DIC
and pCO~2~ at the hydrocast stations. DIC samples will be collected from
the 10-L Niskin bottles into 500 ml glass-stoppered bottles containing
0.025 mL of a saturated solution of HgCl~2~ to retard bacterial
oxidation of organic matter prior to analysis. DIC samples will be
measured by the coulometric titration method and will be done in a
temperature-controlled van. Discrete pCO~2~ samples will be collected
from Niskin bottles into 500 ml volumetric flasks for analyses by IR in
the same van.

**G.** **Direct measurements of air-sea gas transfer during GOMECC**

*Principal investigator:* C. Fairall (ESRL), D. Helmig (UC Boulder), W.
McGillis (LDEO)

*Cruise participants:* William Otto, Kathrin Lang, LDEO Student

*Summary of scientific objectives:*

1\) Characterize the near-surface meteorological variables

2\) Determine meteorological surface forcing variables (friction
velocity, stability)

3\) Perform direct eddy correlation measurements of the air sea fluxes
of CO2 and Ozone

*Sampling and Analysis:* The ESRL seagoing air-sea flux system will be
operated for the entire cruise. The system will be enhanced with two
additional fast gas sensors -- the CU/INSTAAR (Helmig) fast ozone sensor
and the LDEO/ESRL ruggedized unattended fast CO~2~ sensor. The systems
will run automatically and collect data at approximately 10Hz and 1-min
resolution (depending on the sensors). Data will be acquired and
archived using the ESRL DAS in the Science lab. Some processing will be
done at sea for quality control.

**H.** **Measurement of Ozone flux by eddy correlation**

*Principal investigator:* Chris Fairall (ESRL), Detlev Helmig (UC
Boulder)

*Cruise participants:* Kathrin Lang, William Otto (UC Boulder)

*Summary of scientific objectives:* These measurements will be used to
assess the ozone deposition velocity in the Gulf of Mexico. With this
data set, we will analyze the ozone fluxes and the dependencies on
physical, chemical and biological conditions encountered during the
cruise. The goal is to have a better understanding of the mechanisms
driving the ozone deposition into the oceans. Thus, we can incorporate
these data into atmospheric chemistry transport models.

*Sampling and Analyses:* PSD and INSTAAR groups will measure ozone
concentration with a fast-response instrument using the
chemiluminescence principle. NO is mixed with the sampled Ozone in a
reaction chamber. A photomultiplier is used to count the photons emitted
during the chemical reaction.

The device is included in the flux system of PSD. By combining sonic
anemometer data and ozone data, we can assess the ozone flux, and get
the deposition velocity.

The PSD flux system is composed of sensors on the jack staff, plus some
computers in the scientific office.

*Location of setup:* The sensor will be located on the 03 deck with a
sampling line running to the jack staff. The inlet of the sampling line
will be mounted near the sonic anemometer (see figure 1 above).

**I. Oxygen (O~2~) measurements**

*Principal investigator:* Chris Langdon (RSMAS)

*Cruise participants:* George Berberian, Chuck Featherstone (AOML)

*Summary of scientific objectives:* The O~2~ measurements are core
measurements that will be taken on all bottles of all CTD casts. The
main purpose is to elucidate the biogeochemical controls of these
parameters in coastal waters. During this cruise a new design of oxygen
titrator will be field tested and a novel underway ammonia system will
be tested as well.

*Sampling and Analysis:* Oxygen samples will be taken in standard
volumetric iodine flasks from all Niskin bottles as the first aliquot
after the Niskin bottle is opened. Draw temperatures will be taken for
all samples.

*Location of setup:* Bioanalytical Lab

**J. Nutrient measurements**

*Principal investigator:* Jia-Zhong Zhang

*Cruise participants:* Charles J. Fischer, Natchanon Amornthammarong

*Summary of scientific objectives:* Nitrate, Nitrite, ammonium,
phosphate and silicate are major inorganic nutrients that control
oceanic primary production and carbon exports. Together with the
measurements of inorganic carbon parameters the observations will be
used to estimate the effect of riverine input, air-sea CO2 gas exchange,
biological productivity and lateral carbon exchange on the coastal
carbon dynamics.

*Sampling and Analyses:* The nutrient groups from AOML will measure
NO~3,~ NO~2,~ NH~4,~ PO~3~ and Si(OH)~4~ concentrations at the hydrocast
stations. Nutrient samples will be collected from the 10-L Niskin
bottles into 50 ml plastic sampling bottles. Water samples will be
equilibrated to room temperature prior to analysis. Nutrient samples
will be measured by a modified Alpkem autoanalyzer using a gas-segmented
continuous flow colorimetric technique in a temperature-controlled
shipboard laboratory. An underway system for ammonia measurements will
be placed in the bio analytical lab.

*Location of setup:* The Bioanalytical Laboratory on NOAA Ship RH Brown

**K. In situ Spectrophotometric pH profiler using SEAS II
instrument/Underway CO~2~ system measurements**

*Principal investigator:* Robert H. Byrne (USF)

*Cruise participants:* Xuewu (Sherwood) Liu, Zhaohui (Aleck) Wang,
Regina Easley (USF)

*Summary of scientific objectives:* The main goal of USF scientists
during the GOMECC cruise is to deploy a pH profiler to measure in-situ
seawater pH in real time. They will also map surface CO~2~ parameter
with their CO~2~ system analyzer.

pH is one of the four carbon system parameters that are used to
characterize the ocean carbon system and is the master variable for many
chemical and physical processes. During the GOMECC cruise, USF
scientists will deploy their SEAS II in-situ pH profiler on CTD rosette
frame to get real time pH profiles down to 1000 meters. The instrument
will provide high frequency pH readings comparable to O~2~, fluorescence
and CTD data.

A desktop underway multi-parameter CO~2~ system instrument will also be
set up to map the surface CO~2~ parameters at sample rate of seven
readings per hour. The instrument measures pH, total CO~2~, air pCO~2~
and seawater pCO~2~ automatically and provide high precision mapping of
surface CO~2~ parameters.

*Sampling and Analysis:*

USF scientists will deploy their pH profilers at all hydrocast stations.
pH SEAS II instrument will be installed on CTD frames. It Measures 130
cm tall and is 18 cm diameter, the instrument will take up one of the
Rosette\'s sampling bottle position. The instrument will be powered by
its own 20 v battery pack. Data will be streamed to the main computer on
deck via available analog port. It is preferred to have the instrument
lowered at constant speed, such as 20 meters per minute. Since the lamp
needs to be warmed up for half hour, the operator needs to be notified a
half-hour before the instrument enters the water to power up the
instrument. Once the instrument is in the water, it will be first soaked
for 5 minutes at 10-meter depth and then start to descend at 20 meters
per minute. It is preferable to stay at bottom for about 3 minutes to
retake reference. During the descending and ascending, pH values will be
constantly streamed to main control computer.

The underway system will be set up on a work bench close to a sink where
the seawater line is available. The seawater sample will be taken by the
instrument sample pump from the ship\'s seawater line and air pCO~2~
will be sampled by a sample line installed in a similar way as NOAA\'s
underway pCO2 system. The pCO2 and TCO~2~ are measured by equilibrating
across LCW cells and pH is measured by mixing sample with thymol blue
indicator.

*Location of setup*: The CO~2~ instrument will be set up in hydro lab as
in previous cruise on the bench close to sink on the DMS instrument
side. pH profiler service and maintenance will be performed in the Wet
Lab.

**L. Relating phytoplankton pigment distributions and abundance to
air-sea flux of carbon dioxide in continental margin waters of the Gulf
of Mexico and Eastern North Atlantic**

*Principal investigator:* Steven Lohrenz (USM)

*Cruise participants:* Sumit Chakraborty (USM)

*Summary of scientific objectives:* Carbon dioxide flux between the
atmosphere and the ocean is a key component in global carbon cycle
models. Ocean margins, despite of their relatively small surface area
may have a significant impact on global biogeochemical cycles, and,
potentially, in the global air-sea fluxes of CO~2~. Autotrophic carbon
fixation associated with phytoplankton can reduce surface pCO2 values,
and the associated air-sea flux of CO2. Our objective is conduct
photosynthetic pigment analyses that will provide information about
abundance and composition of phytoplankton populations. Information
about phytoplankton pigment concentration and taxonomic composition will
help efforts to better understand factors influencing the spatial and
temporal distribution of pCO~2,~ and thereby improve our ability to
estimate pCO~2~ distributions and predict changes.

The pigment analyses and the derived information about phytoplankton
abundance and taxonomic composition will be related to other measured
variables, including CTD, partial pressure of carbon dioxide, total
alkalinity, pH, total dissolved inorganic carbon, and nutrients. This
study will contribute information about phytoplankton pigments to a
database of information over a large range of coastal water mass type
conditions. Observed pigment concentrations will also be compared to
satellite ocean-color derived chlorophyll and absorption to evaluate the
performance of algorithms.

*Sampling and Analysis:* Water from the CTD cast will be filtered for
pigment analysis using HPLC. As much as 2 liters/sample will be filtered
using GF/F filters which will be cryogenically stored for subsequent
HPLC analysis in the lab.

*Location of setup:* Oceanographic Lab