Particle Interceptor Sediment Trap data from R/V Atlantis II cruise AII-119-4 in the North Atlantic in 1989 (U.S. JGOFS NABE project)

Website: https://www.bco-dmo.org/dataset/2606
Version: May 10, 1995
Version Date: 1995-05-10

Project
» U.S. JGOFS North Atlantic Bloom Experiment (NABE)

Program
» U.S. Joint Global Ocean Flux Study (U.S. JGOFS)
ContributorsAffiliationRole
Martin, JohnMoss Landing Marine Laboratories (MLML)Principal Investigator
Chandler, Cynthia L.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

Particle Interceptor Sediment Trap Data

Methods & Sampling

   PI:              John Martin
   of:              Moss Landing Marine Laboratory
   dataset:         Particle interceptor Sediment Trap Data
   dates:           April 24, 1989 to May 21, 1989
   location:        N: 47.0917  S: 46.4833  W: -19.925  E: -18.9729
   project/cruise:  North Atlantic Bloom Experiment/119, leg 4
   ship:            R/V Atlantis II
 
   Sampling methodology and analytical procedures:
   Martin, J.M., S.F. Fitzwater, R.M. Gordon, C.N. Hunter, S.J. Tanner, 1993.
   Iron, primary production and carbon-nitrogen flux studies during the JGOFS
   North Atlantic Bloom Experiment.  Deep-Sea Research II, Vol. 40, No. 1/2,
   pp. 115-134.


   ARGOS positions of MLML particle traps

 

[ table of contents | back to top ]

Data Files

File
pitdata.csv
(Comma Separated Values (.csv), 1.23 KB)
MD5:54a02030106b0a4b05683f153953514a
Primary data file for dataset ID 2606

[ table of contents | back to top ]

Parameters

ParameterDescriptionUnits
trap

identifer for trap deployment

dimensionless
event

event number from event log composite of month, day, hour, minutes

MMDDhhmm
lat_n

nominal latitude of trap during deployment, (negative = south)

decimal degrees
lon_n

nominal longitude of trap during deployment, (negative = west)

decimal degrees
days_set

number of days trap deployed

decimal days
depth

depth of trap

meters
p_f_tot

total particulate flux

milligrams/meter^2/day
CaCO3_f

Calcium Carbonate particulate flux

milligrams/meter^2/day
C_f_tot

total Carbon particulate flux

millimoles/meter^2/day
pic_f

particulate inorganic Carbon flux

millimoles/meter^2/day
poc_f

particulate organic Carbon flux

millimoles/meter^2/day
pon_f

particulate organic Nitrogen flux

millimoles/meter^2/day


[ table of contents | back to top ]

Instruments

Dataset-specific Instrument Name
Particle Interceptor Trap
Generic Instrument Name
Sediment Trap - Particle Interceptor
Dataset-specific Description
MLML Particle Interceptor Sediment Trap (MLML = Moss Landing Marine Laboratory)
Generic Instrument Description
A Particle Interceptor Trap is a prototype sediment trap designed in the mid 1990s to segregate 'swimmers' from sinking particulate material sampled from the water column. The prototype trap used 'segregation plates' to deflect and segregate 'swimmers' while a series of funnels collected sinking particles in a chamber (see Dennis A. Hansell and Jan A. Newton. September 1994. Design and Evaluation of a "Swimmer"-Segregating Particle Interceptor Trap, Limnology and Oceanography, Vol. 39, No. 6, pp. 1487-1495).


[ table of contents | back to top ]

Deployments

AII-119-4

Website
Platform
R/V Atlantis II
Start Date
1989-04-17
End Date
1989-05-11
Description
early bloom cruise; 17 locations; 60N 21W to 46N 18W


[ table of contents | back to top ]

Project Information

U.S. JGOFS North Atlantic Bloom Experiment (NABE)


Coverage: North Atlantic


One of the first major activities of JGOFS was a multinational pilot project, North Atlantic Bloom Experiment (NABE), carried out along longitude 20° West in 1989 through 1991. The United States participated in 1989 only, with the April deployment of two sediment trap arrays at 48° and 34° North. Three process-oriented cruises where conducted, April through July 1989, from R/V Atlantis II and R/V Endeavor focusing on sites at 46° and 59° North. Coordination of the NABE process-study cruises was supported by NSF-OCE award # 8814229. Ancillary sea surface mapping and AXBT profiling data were collected from NASA's P3 aircraft for a series of one day flights, April through June 1989.

A detailed description of NABE and the initial synthesis of the complete program data collection efforts appear in: Topical Studies in Oceanography, JGOFS: The North Atlantic Bloom Experiment (1993), Deep-Sea Research II, Volume 40 No. 1/2.

The U.S. JGOFS Data management office compiled a preliminary NABE data report of U.S. activities: Slagle, R. and G. Heimerdinger, 1991. U.S. Joint Global Ocean Flux Study, North Atlantic Bloom Experiment, Process Study Data Report P-1, April-July 1989. NODC/U.S. JGOFS Data Management Office, Woods Hole Oceanographic Institution, 315 pp. (out of print).



[ table of contents | back to top ]

Program Information

U.S. Joint Global Ocean Flux Study (U.S. JGOFS)


Coverage: Global


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).



[ table of contents | back to top ]

Funding

Funding SourceAward
National Science Foundation (NSF)

[ table of contents | back to top ]