Contributors | Affiliation | Role |
---|---|---|
Prahl, Fred | Oregon State University (OSU) | Principal Investigator |
Chandler, Cynthia L. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
See Platform deployments for cruise specific documentation
Note: MS-1, MS-2, MS-3, MS-4, MS-5 in published article are equivalent to J1, J2, J3, J4, J5 in the online data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902
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sedtrap_biomarker.csv (Comma Separated Values (.csv), 9.90 KB) MD5:60e253a43db4bbe7cc38a8f5d6acd37c Primary data file for dataset ID 2589 |
Parameter | Description | Units |
site | Arabian Sea site designation | |
mooring | mooring identification | |
trap_type | sediment trap type: shallow, middle, deep; | |
trap_id | unique identifier for each sediment trap | |
deploy | deployment number | |
depth_trap | depth of trap | meters |
date_set | date of trap deployment | YYYYMMDD |
lat | latitude (negative = south) | decimal degrees |
lon | longitude (negative = west) | decimal degrees |
cup | sediment trap cup number | |
date_open | date sediment trap opened | YYYMMDD |
time_open | time of day sediment trap opened | hhmm |
days_open | number of days trap remained open | day |
flux_tot | total particle flux recovered | mg/m2/day |
C_org | organic carbon, particle size < 1mm | % of total flux |
C27_to_31 | sum of C27, C29, C31 n-alkanes | micrograms/gram dry |
Cmax | maximum C measured in n-alkanes | |
LCK | C37, C38, C39 alkenones | micrograms/gram dry |
Uk37 | alkenone unsaturation | |
HBI | total highly branched C25 isoprenoid alkenes | micrograms/gram dry |
Cholesterol | cholesterol | micrograms/gram dry |
OHC28FA_12 | 12-hydroxyoctacosanoic acid | micrograms/gram dry |
EtChol_24 | 24-ethylcholesta-5-enol | micrograms/gram dry |
Dinosterol | dinosterol | micrograms/gram dry |
C32Hop | C32 hopan-32-ol | micrograms/gram dry |
Dataset-specific Instrument Name | Sediment Trap |
Generic Instrument Name | Sediment Trap |
Generic Instrument Description | Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator. |
Website | |
Platform | R/V Thomas G. Thompson |
Start Date | 1994-10-28 |
End Date | 1994-11-21 |
Description | Methods & Sampling PI: Fredrick G. Prahl of: Oregon State University dataset: deep sea sediment trap biomarker data dates: November 06, 1994 to May 07, 1995 location: N: 15.985 S: 15.9845 W: 61.49617 E: 61.49917 project/cruise: Arabian Sea set: TTN-041 serviced: TTN-047 recovered: TTN-055 ship: R/V Thomas Thompson Reference: Prahl, F.G., Diamond, J. and Sparrow, M.A., 2000, Annual biomarker record for export production in the central Arabian Sea, Deep-Sea Research II 47, 1581-1604 |
Website | |
Platform | R/V Thomas G. Thompson |
Start Date | 1995-05-03 |
End Date | 1995-05-22 |
Description | Sediment Trap Servicing, Coring, Process 3 Methods & Sampling PI: Fredrick G. Prahl of: Oregon State University dataset: deep sea sediment trap biomarker data dates: November 06, 1994 to May 07, 1995 location: N: 15.985 S: 15.9845 W: 61.49617 E: 61.49917 project/cruise: Arabian Sea set: TTN-041 serviced: TTN-047 recovered: TTN-055 ship: R/V Thomas Thompson Reference: Prahl, F.G., Diamond, J. and Sparrow, M.A., 2000, Annual biomarker record for export production in the central Arabian Sea, Deep-Sea Research II 47, 1581-1604 |
Website | |
Platform | R/V Thomas G. Thompson |
Start Date | 1995-12-31 |
End Date | 1996-01-16 |
Description | Sediment Trap Recovery Methods & Sampling PI: Fredrick G. Prahl of: Oregon State University dataset: deep sea sediment trap biomarker data dates: November 06, 1994 to May 07, 1995 location: N: 15.985 S: 15.9845 W: 61.49617 E: 61.49917 project/cruise: Arabian Sea set: TTN-041 serviced: TTN-047 recovered: TTN-055 ship: R/V Thomas Thompson Reference: Prahl, F.G., Diamond, J. and Sparrow, M.A., 2000, Annual biomarker record for export production in the central Arabian Sea, Deep-Sea Research II 47, 1581-1604 |
Website | |
Platform | JGOFS Sediment Trap |
Start Date | 1994-11-11 |
End Date | 1995-04-30 |
Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 15.985° N
Longitude = 61.500° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Fredrick G. Prahl of: Oregon State University dataset: deep sea sediment trap biomarker data dates: November 06, 1994 to May 07, 1995 location: N: 15.985 S: 15.9845 W: 61.49617 E: 61.49917 project/cruise: Arabian Sea set: TTN-041 serviced: TTN-047 recovered: TTN-055 ship: R/V Thomas Thompson Reference: Prahl, F.G., Diamond, J. and Sparrow, M.A., 2000, Annual biomarker record for export production in the central Arabian Sea, Deep-Sea Research II 47, 1581-1604 |
Website | |
Platform | JGOFS Sediment Trap |
Start Date | 1995-05-17 |
End Date | 1995-12-24 |
Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 15.985° N
Longitude = 61.500° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Fredrick G. Prahl of: Oregon State University dataset: deep sea sediment trap biomarker data dates: November 06, 1994 to May 07, 1995 location: N: 15.985 S: 15.9845 W: 61.49617 E: 61.49917 project/cruise: Arabian Sea set: TTN-041 serviced: TTN-047 recovered: TTN-055 ship: R/V Thomas Thompson Reference: Prahl, F.G., Diamond, J. and Sparrow, M.A., 2000, Annual biomarker record for export production in the central Arabian Sea, Deep-Sea Research II 47, 1581-1604 |
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).