| Contributors | Affiliation | Role |
|---|---|---|
| Bidigare, Robert R. | University of Hawai'i (UH) | Principal Investigator |
| Chandler, Cynthia L. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Chlorophyll-a and phaeopigments, fluorometric method
See Platform deployments for cruise specific documentation
| Parameter | Description | Units |
| event | event number, from event log | |
| sta | station number, from event log | |
| sta_std | Arabian Sea standard station identifier | |
| cast | cast number, from event log | |
| bot | rosette bottle number | |
| depth_n | nominal sample depth | meters |
| chl_a_fluor | chlorophyll_a, fluorometric method | micrograms/liter |
| phaeo | phaeopigments, fluorometric method | micrograms/liter |
| Dataset-specific Instrument Name | Turner Design Digital 10-AU-05 Fluorometer |
| Generic Instrument Name | Turner Designs Fluorometer 10-AU |
| Dataset-specific Description | Duke's AU-10 fluorometer. |
| Generic Instrument Description | The Turner Designs 10-AU Field Fluorometer is used to measure Chlorophyll fluorescence. The 10AU Fluorometer can be set up for continuous-flow monitoring or discrete sample analyses. A variety of compounds can be measured using application-specific optical filters available from the manufacturer. (read more from Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA) |
| Website | |
| Platform | R/V Thomas G. Thompson |
| Start Date | 1995-03-14 |
| End Date | 1995-04-10 |
| Description | Methods & Sampling PI: Robert R. Bidigare of: University of Hawaii dataset: Chlorophyll-a and phaeopigments, fluorometric method dates: March 14, 1995 to April 08, 1995 location: N: 22.4825 S: 9.9988 W: 57.3032 E: 68.7474 project/cruise: Arabian Sea/TTN-045; Process cruise 2 (Spring Intermonsoon) ship: R/V Thomas Thompson Methodology note: Duke's AU-10 fluorometer. Blank=0. Calibrated by M. Latasa 3/22/95 Extraction volume: 10 mL 90% Acetone. Note: US JGOFS Data Management Office changed units from milligrams/cubic meter to micrograms/liter. |
| Website | |
| Platform | R/V Thomas G. Thompson |
| Start Date | 1995-08-18 |
| End Date | 1995-09-15 |
| Description | Methods & Sampling PI: Robert R. Bidigare of: University of Hawaii dataset: Chlorophyll-a and phaeopigments, fluorometric method dates: August 18, 1995 to September 13, 1995 location: N: 22.4688 S: 9.9453 W: 57.3004 E: 68.7494 project/cruise: Arabian Sea/TTN-050; Process cruise 5 (Late SW Monsoon) ship: R/V Thomas Thompson Methodology note: Duke's AU-10 fluorometer. Calibrated by M.E. Ondrusek Extraction volume: 10 mL 90% Acetone. Note: US JGOFS Data Management Office changed units from milligrams/cubic meter to micrograms/liter. |
| Website | |
| Platform | R/V Thomas G. Thompson |
| Start Date | 1995-10-29 |
| End Date | 1995-11-26 |
| Description | Methods & Sampling PI: Robert R. Bidigare of: University of Hawaii dataset: Chlorophyll-a and phaeopigments, fluorometric method dates: October 29, 1995 to November 25, 1995 location: N: 24.3302 S: 10.0823 W: 56.4858 E: 67.1666 project/cruise: Arabian Sea/TTN-053; Process cruise 6 (bio-optics) ship: R/V Thomas Thompson Methodology note: Duke's AU-10 fluorometer. Calibrated by R.R. Bidigare Extraction volume: 7 mL 90% Acetone. Note: US JGOFS Data Management Office changed units from milligrams/cubic meter to micrograms/liter. |
The U.S. Arabian Sea Expedition which began in September 1994 and ended in January 1996, had three major components: a U.S. JGOFS Process Study, supported by the National Science Foundation (NSF); Forced Upper Ocean Dynamics, an Office of Naval Research (ONR) initiative; and shipboard and aircraft measurements supported by the National Aeronautics and Space Administration (NASA). The Expedition consisted of 17 cruises aboard the R/V Thomas Thompson, year-long moored deployments of five instrumented surface buoys and five sediment-trap arrays, aircraft overflights and satellite observations. Of the seventeen ship cruises, six were allocated to repeat process survey cruises, four to SeaSoar mapping cruises, six to mooring and benthic work, and a single calibration cruise which was essentially conducted in transit to the Arabian Sea.
The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.
The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).
| Funding Source | Award |
|---|---|
| National Science Foundation (NSF) |