Contributors | Affiliation | Role |
---|---|---|
Roman, Michael R. | University of Maryland Center for Environmental Science (UMCES/HPL) | Principal Investigator |
Gauzens, Anne | University of Maryland Center for Environmental Science (UMCES/HPL) | Co-Principal Investigator |
Chandler, Cynthia L. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Mesozooplankton biomass, Bongo Net oblique tows
See Platform deployments for cruise specific documentation
Sampling methodology: Smith, Sharon L. 1984. Biological Indications of Active Upwelling in the Northwestern Indian Ocean in 1964 and 1979, and a comparison with Peru and Northwest Africa. Deep-Sea Research 31:951-967 Analysis methodology referenced in: Roman, M.R. et al, Zooplankton variability on the equator at 140W during the JGOFS EqPac Study. Deep Sea Research II, 42(2-3) : 673-693, 1995
Parameter | Description | Units |
sta | station number from event log | |
sta_std | Arabian Sea standard station identifier | |
event | event number from event log | |
lat | latitude (minus = south) | decimal degrees |
lon | longitude (minus = west) | decimal degrees |
mzp_C_1 | mesozooplankton biomass reported as Carbon for size fraction 200=500um | mmol C/m^2 |
mzp_C_2 | mesozooplankton biomass reported as Carbon for size fraction 500=1000um | mmol C/m^2 |
mzp_C_3 | mesozooplankton biomass reported as Carbon for size fraction 1000=2000um | mmol C/m^2 |
mzp_C_4 | mesozooplankton biomass reported as Carbon for size fraction >2000um | mmol C/m^2 |
net | Bongo net: | 153 or 335 micron mesh |
zp_C_1 | zooplankton carbon, 200-500 micron | mmol C/m2 |
zp_C_2 | zooplankton carbon, 500-1000 micron | mmol C/m2 |
zp_C_3 | zooplankton carbon, 1000-2000 micron | mmol C/m2 |
zp_C_4 | zooplankton carbon, gt 2000 micron | mmol C/m2 |
zp_C_T | zooplankton carbon, total size fractions | mmol C/m2 |
Dataset-specific Instrument Name | Bongo Nets |
Generic Instrument Name | Bongo Net |
Dataset-specific Description | The single bongo deployment used two 2 different net sizes:
335um and 153um. |
Generic Instrument Description | A Bongo Net consists of paired plankton nets, typically with a 60 cm diameter mouth opening and varying mesh sizes, 10 to 1000 micron. The Bongo Frame was designed by the National Marine Fisheries Service for use in the MARMAP program. It consists of two cylindrical collars connected with a yoke so that replicate samples are collected at the same time. Variations in models are designed for either vertical hauls (OI-2500 = NMFS Pairovet-Style, MARMAP Bongo, CalVET) or both oblique and vertical hauls (Aquatic Research). The OI-1200 has an opening and closing mechanism that allows discrete "known-depth" sampling. This model is large enough to filter water at the rate of 47.5 m3/minute when towing at a speed of two knots. More information: Ocean Instruments, Aquatic Research, Sea-Gear |
Website | |
Platform | R/V Thomas G. Thompson |
Report | |
Start Date | 1995-01-08 |
End Date | 1995-02-05 |
Description | Purpose: Process Cruise #1 (Late NE Monsoon) Methods & Sampling PI: Michael Roman of: Horn Point Environmental Laboratory dataset: Mesozooplankton biomass, Bongo Net oblique tows dates: January 09, 1995 to January 31, 1995 location: N: 22.4848 S: 12.0693 W: 57.3177 E: 67.9341 project/cruise: Arabian Sea, Process 1 TTN043 (Late NE Monsoon) ship: R/V Thomas Thompson Note: All samples were taken from the 153 micron net. All bongo tows sampled the 0-200 meter range except for sta 29, event 01311713 which sampled the 0-100 meter range. DMO note: mesozooplankton from bongo tows Processing Description Sampling methodology: Smith, Sharon L. 1984. Biological Indications of Active Upwelling in the Northwestern Indian Ocean in 1964 and 1979, and a comparison with Peru and Northwest Africa. Deep-Sea Research 31:951-967 Analysis methodology referenced in: Roman, M.R. et al, Zooplankton variability on the equator at 140W during the JGOFS EqPac Study. Deep Sea Research II, 42(2-3) : 673-693, 1995 |
Website | |
Platform | R/V Thomas G. Thompson |
Start Date | 1995-03-14 |
End Date | 1995-04-10 |
Description | Methods & Sampling PI: Michael Roman of: Horn Point Environmental Laboratory dataset: Mesozooplankton biomass, Bongo Net oblique tows dates: March 15, 1995 to April 05, 1995 location: N: 22.472 S: 12.0623 W: 58.8083 E: 68.3385 project/cruise: Arabian Sea, Process 2 TTN045 (Spring Intermonsoon) ship: R/V Thomas Thompson Note: All samples were taken from the 153 micron net and the 0-200 meter range. DMO note: mesozooplankton from bongo tows Processing Description Sampling methodology: Smith, Sharon L. 1984. Biological Indications of Active Upwelling in the Northwestern Indian Ocean in 1964 and 1979, and a comparison with Peru and Northwest Africa. Deep-Sea Research 31:951-967 Analysis methodology referenced in: Roman, M.R. et al, Zooplankton variability on the equator at 140W during the JGOFS EqPac Study. Deep Sea Research II, 42(2-3) : 673-693, 1995 |
Website | |
Platform | R/V Thomas G. Thompson |
Start Date | 1995-08-18 |
End Date | 1995-09-15 |
Description | Methods & Sampling PI: Michael Roman of: Horn Point Environmental Laboratory dataset: Mesozooplankton biomass, Bongo Net oblique tows dates: August 19, 1995 to September 13, 1995 location: N: 22.5076 S: 12.063 W: 58.5914 E: 68.733 project/cruise: Arabian Sea, Process 5 TTN050 (Late SW Monsoon) ship: R/V Thomas Thompson Note: All samples were taken from the 153 micron net and the 0-200 meter range. DMO note: mesozooplankton from bongo tows Processing Description Sampling methodology: Smith, Sharon L. 1984. Biological Indications of Active Upwelling in the Northwestern Indian Ocean in 1964 and 1979, and a comparison with Peru and Northwest Africa. Deep-Sea Research 31:951-967 Analysis methodology referenced in: Roman, M.R. et al, Zooplankton variability on the equator at 140W during the JGOFS EqPac Study. Deep Sea Research II, 42(2-3) : 673-693, 1995 |
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) |