TROPICAL ATMOSPHERE-OCEAN (TAO) PROGRAM

FINAL

 

CRUISE INSTRUCTIONS

FOR

KA-04-04

July 19  – August 17, 2004

 

TAO Program Director

Dr. Michael J. McPhaden

PMEL, TAO Project Office

7600 Sand Point Way NE

Seattle, WA 98115

 

Area:            Equatorial Pacific

Itinerary:

KA-04-04            Kwajalein, RMI                      dep.              19 July 2004 (20 July Kwajalein date)

Honolulu, Hawaii                        arr.              17 August 2004                          

 

CRUISE DESCRIPTION

General guidelines are contained in the TAO Program Standard Operating Instructions for NOAA Ship KA’IMIMOANA dated June 28, 2002.

 

Cruise Objective and Plan:

The objective of this cruise is the maintenance of the TAO Array along the 165°E and 180°W meridians.  A PMEL test mooring will be deployed at  8ºN  180ºW  and a NMFS Bigeye mooring will be recovered at 20º 36’N and 161º24.2’W.  The ship will depart  on July 19, 2004 to commence operations as listed in Appendix A.  After completion of operations, KA’IMIMOANA will proceed to Honolulu, Hawaii arriving on or about August 17, 2004.   Prior to arrival in Honolulu, underway fleet inspection activities will require approximately 5 hours.  All dates and times referred to in these cruise instructions are in Pacific Standard Time (PST).

 

 

 

PMC  Operations:                                        TAO  Operations  Manager:

Larry Mordock                                             LCDR Brian Lake, NOAA

NOAA/MOC-Pacific (MOC-P1x3)              PMEL, TAO, R/E/PM

1801 Fairview Ave. East                            7600 Sand Point Way NE

Seattle, WA  98102-3767                           Seattle, WA 98115-0070

(206) 553-4764                                       (206) 526-6403

Larry.Mordock@noaa.gov                          Brian.Lake@noaa.gov

 

1.0 PERSONNEL

 

1.1   CHIEF SCIENTIST AND PARTICIPATING SCIENTISTS:

 

Chief Scientist:                    Kristy McTaggart

 

The Chief Scientist is authorized to revise or alter the scientific portion of the cruise plan as work progresses provided that, after consultation with the Commanding Officer, it is ascertained that the proposed changes will not: (1) jeopardize the safety of personnel or the ship; (2) exceed the overall time allotted for the cruise; (3) result in undue additional expenses; (4) alter the general intent of these instructions.  A list of participating scientists follows.  All participating scientists will submit a medical history form and be medically approved before embarking.

 

Participating Scientists

Name                                      Sex            Nationality            Affiliation

 

1.   Kristy McTaggart            F            USA                NOAA/PMEL

2.   Sonya Noor                F            USA                NOAA/PMEL

3.   Brian Powers                       M            USA                NOAA/PMEL

4.   Nicole Schuetz                      F            USA                MBARI

 

2.0  OPERATIONS

 

Mooring Operations are scheduled to be conducted as shown in Appendix A.  Operations will be conducted from 8°N - 165°E to 8°S - 165°E and 8°S  - 180°W to 8°N  180°W and via 20º 36’N and 161º24.2’W 8°N to Honolulu.  The following mooring operations are anticipated, though the work may be changed by direction of the Chief Scientist, in consultation with the Commanding Officer.

Location            Mooring Type                                    Operation

 

8°N 165°E            ATLAS II - Taut                    Recover/Deploy

 

5°N 165°E            ATLAS II - Taut                    Repair.  Swap wind, rain, SWR, dump RAM.

 

2°N 165°E            ATLAS II - Taut                    Recover/Deploy

 

0°N 165°E            ATLAS II - Taut                        Deploy new mooring.  Original has been drifting since June 7 with position 3.4ºN171.4ºE on July 2, 2004.

                        ADCP                                                Avoid (No ADCP recovery or deployment)

 

2°S 165°E            ATLAS II - Taut                    Repair, swap anemometer, ATRH, RAM dump.

                                                                        Stopped transmitting June 8.

 

5°S 165°E            ATLAS II - Taut                    Repair.  Swap SWR, wind, dump RAM.

 

8°S 165°E            ATLAS II - Taut                         Deploy.  Mooring is adrift at position 4.8ºS 155.7ºE.

 

8°S 180°W    ATLAS II - Taut                 Recover/Deploy

 

5°S  180°W            ATLAS II - Taut                    Recover/Deploy

 

3°S  180°W            AOML Drifter                         Deploy AOML Drifter.

 

2°S  180°W            ATLAS II - Taut                    Visit.

 

0°  180°W            ATLAS II - Taut                        Visit.

                        AOML Drifter                                    Deploy AOML Drifter

 

1° N 180°W            Argo profiling float                        Deploy ID #1235

 

 

Location            Mooring Type                        Operation

 

2°N  180°W            ATLAS II - Taut                    Recover/Deploy

 

3°N  180°W            AOML Drifter                         Deploy 

 

5°N  180°W            ATLAS II - Taut                    Recover/Deploy.  

 

8°N  180°W            ATLAS II - Taut                    Recover/Deploy

8°N  180°W            PMEL Test                             Deploy

 

20º 36’N   161º24.2’W                            Recover NMFS Bigeye mooring

 

                                                                       

2.01 CTD

 

At a minimum, 1000 meter CTD casts shall be conducted at each mooring site between 12° N and 8° S for sensor inter‑comparison purposes.  As time permits, additional or deeper CTD’s should be conducted whenever addition of the CTD’s will not impact scheduled mooring work.  For example, if the ship would arrive at the next mooring site in the middle of the night, it is preferable to do CTD’s on the way, rather than remain hove to waiting for daylight.  Another example would be when mooring operations are significantly ahead of schedule.  Beyond those at mooring sites, CTD’s should be conducted in the following order of priority:

- 1000m CTD’s at one degree latitude intervals between 12° N and 8° S , along the ship’s trackline.

- Extend 1000m CTD’s at mooring sites to a minimum of 3000m or a maximum depth of 200m from bottom.  4 to 6 deep casts are optimal, occurring at the beginning and end of the cruise as well as at both equatorial sites.

- 1000m CTD’s every one‑half degree of latitude between 3°N and 3°S

- Additional calibration CTD’s to be determined by Chief Scientist.

 

In order to reduce the cost of standard water needed to calibrate CTD data,  the number of salinity samples has been reduced.   PMEL proposes taking 8 samples per station instead of 12; not sampling ½ degree stations; and running 40 samples per standard instead of 36.   Questions regarding these revised procedures should be directed to Kristy McTaggart. 

 

2.02  Monterey Bay Aquarium Research Institute (MBARI) Chlorophyll and Nutrients

 

Phytoplankton biomass work consisting of chlorophyll extractions and nutrients samples will be collected from CTD rosette at 0, 10, 25, 40, 60, 100, 150 and 200m. The total volume used from each bottle, including rinses is approximately one liter; except for the surface bottle, which will require approximately three liters.  This requires use of the sink/bench area of the wet lab for filtration purposes.  Chlorophyll samples will be measured on-board using a bench-top fluorometer.   Nutrient samples (sea water) will be stored in the science hold and off-loaded upon return.

 

2.03  Bloomsburg University Barnacle Census

 

No barnacles will be collected on this cruise.  The Bloomsburg barnacle census project does not plan to participate on TAO cruises in calendar year 2004.

 

2.04  Atlantic Oceanographic and Meteorological Laboratory (AOML) Surface Drifters

 

The Global Drifter Center at NOAA/AOML requests drifter deployments on an ancillary basis.  The drifters are small, easily deployed devices which are tracked by Argos and provide Sea Surface Temperature (SST) and mixed layer currents.  The global array of drifters provides SST ground truth for NOAA’s polar orbiting satellite AVHRR SST maps.  They also provide data to operational meteorological and ocean models, and research ocean current data sets.  Six AOML drifters are scheduled at the following positions: 

3N, 0, 3S along 180W

 

Craig Engler, Global Drifter Center, NOAA/AOML

305‑361‑4439 (office) or 305‑361‑4392 (fax)

Craig.Engler@noaa.gov or http://www.aoml.noaa.gov/


 

2.05  Pacific Marine Environmetal Lab (PMEL) Argo profiling CTD floats

 

One Argo float is scheduled for deployment on this cruise.   Individual deployment

positions can be shifted by a degree or so along the ship track if more

convenient.  Each float weighs about 56 lbs.    Boxes are numbered sequentially in order of deployment.  The boxes weigh about 200 lbs. full and are 82” long x 17” high x 23” long.  Boxes cannot be stored or transported on their small ends.   The floats are sensitive to high temperatures, so as space for a pair of floats becomes available

on the computer lab rack, it will be desirable to move floats from the

next box to the rack at the earliest convenient time.  A manual for

float-testing and deployment  has been sent to the ship.

Float deployment locations are as follows:

Float id                       Lat            Long

1235                           1N            180W

Argo float questions should be directed to:

Gregory Johnson                                              or                     Elizabeth Steffen

NOAA/PMEL                                                                         NOAA/PMEL

(206) 526-6806                                                               (206) 526-6747

Gregory.C.Johnson@noaa.gov                                          Elizabeth.Steffen@noaa.gov

 

2.06  Discrete gas sampler

 

Whole air samples are cryogenically dried and pumped into glass flasks by an automated system in the computer lab.  Following the cruise, the flasks are returned to Princeton University for analysis by prepaid FEDEX.  Pairs of flasks are collected while the ship is underway at 8N, 4N, 0, 4S and 8S along the 165ºE and 180ºW lines.  Automated sampling cycle is approximately 5 hours.  It is anticipated that the Survey Technician will perform the maintenance tasks.  The contact for this project is:

 Michael Bender,  Princeton University

(609) 258-2936    bender@geo.princeton.edu

 

 

 

2.07  Dissolved inorganic carbon analysis (DIC)

 

A  0.5 liter sea water sample from surface CTD casts will be taken and stored for later dissolved inorganic carbon analysis.  Sample jars and mercury chloride solution will be provided by Scripps institute of  Oceanography.  It is anticipated that the survey technician, together with MBARI personnel will take the samples.  A small bench-top drill press is installed on the ship to assist with the bottle capping process.  Samples will be shipped to Scripps at the conclusion of GP4 in Honolulu. The contacts for this project are:

 

Dr. Andrew Dickson                                                          Dr. Richard Feely

Scripps Institution of Oceanography                      NOAA/PMEL

University of California, San Diego                 7600 Sand Point Way NE

Room 203 -- Vaughan Hall                                     Seattle, Washington   98115

8675 Discovery Way

La Jolla, CA 92037                                                 Tel (206) 526-6214

Tel:   (858) 534-2582

Email: adickson@ucsd.edu                                    Richard.A.Feely@noaa.gov

 

 

3.0  Hazardous Materials

 

The Chief Scientist is responsible for the proper and safe storage of scientific hazardous material and complying with NC Instruction 6280B, Hazardous Materials and Hazardous Waste Policy, Guidance, and Training, dated May 8, 1991. This includes the requirement for the Chief Scientist to remove all scientific team hazardous materials and waste at the end of the cruise.

 

3.1 Ancillary Projects Hazardous Materials

 

1. Acetone                                                                             12 Liters            MBARI

2. Hydrochloric Acid (HCL)                                                      6 Liters            MBARI

3.  Mercuric Chloride solution (saturated with 30 grams)  400 ML            Scripps/PMEL

4.  Mercuric Chloride powder                  30 g                  Scripps/PMEL

5.   5 mol/l H2SO4 solution                  1 Liter                  Princeton

6.  0.14 mol/l Na2S2O3 solution                                               1 Liter             Princeton

7.   8 mol/l NaOH & 4 mol/l KI solution                                   1 Liter             Princeton

8.   0.0017 mol/l KIO3 solution                                               1500 ml            Princeton

9.  Ethanol                                                                              4 Liter             Princeton

10.  Helium            (50 kg, 200bar)                                              1 tank              Princeton

11. Sodium bisulfite                                                                       500 g              Princeton

12.  Soduim sulfite                                                              500 g              Princeton

13.  3 mol/l MnCl2 solution                                                           1 Liter             Princeton

 

 

 

Appendices:

A.  Operations  Spreadsheet

B.      Trackline

C.    Mooring  Equipment  Weight  List