Dataset: sedtrap_carbon

Name: Deep sea sediment trap particle flux; carbon and nitrogen from U.S. JGOFS Sediment Traps from the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)
Published: 2000-04-12
Keywords: oceans

Cite This Dataset

Spatial Extent: N:17.69 E:61.49917 S:15.9845 W:57.8475

Project:

U.S. JGOFS Arabian Sea (Arabian Sea)

Program:

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

Principal Investigator:

Dr John Hedges (University of Washington, UW)

Co-Principal Investigator:

Cindy Lee (Stony Brook University, SUNY Stony Brook)

Stuart Wakeham (Skidaway Institute of Oceanography, SkIO)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

April 12, 2000

Version Date:

2000-04-12

Validated:

Yes

Current State:

Final no updates expected

Deep sea sediment trap particle flux; carbon and nitrogen from U.S. JGOFS Sediment Traps from the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)

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Description

Deep sea sediment trap particle flux and
carbon and nitrogen composition data

Methods & Sampling

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

Data Files

File
sedtrap_carbon.csv (Comma Separated Values (.csv), 30.54 KB) MD5:57f4d2db4e72ce6b4f6c9f8d2ae304e3 Primary data file for dataset ID 2585

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
JGOFS_sedTrap_S1d1	TTN041 TTN047 TTN055 sediment trap	1994-11-11	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
JGOFS_sedTrap_S1d2	TTN041 TTN047 TTN055 sediment trap	1995-05-17	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
JGOFS_sedTrap_S3d1	TTN041 TTN047 TTN055 sediment trap	1994-11-11	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
JGOFS_sedTrap_S3d2	TTN041 TTN047 TTN055 sediment trap	1995-05-17	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
JGOFS_sedTrap_S4d1	TTN041 TTN047 TTN055 sediment trap	1994-11-11	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
JGOFS_sedTrap_S4d2	TTN041 TTN047 TTN055 sediment trap	1995-05-17	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
TT041	TTN041 TN041 TTN-041	1994-10-28	R/V Thomas G. Thompson	Susumu Honjo (Chief Scientist)	data info
TT047	TTN047 TN047 TTN-047	1995-05-03	R/V Thomas G. Thompson	Jack Dymond (Chief Scientist) Dr Warren Prell (Co-Chief Scientist)	data info
TT055	TTN055 TN055 TTN-055	1995-12-31	R/V Thomas G. Thompson	Cindy Lee (Chief Scientist)	data info

Instruments

Sediment Trap - IRS

Supplied Name: IRS Sediment Trap

Supplied Description:

Instrument Type

Generic Name: Sediment Trap - IRS

Acronym: Sed Trap - IRS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/33/

Generic 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. The Indented Rotating Sphere (IRS) Sediment Trap is described in Peterson et al. (Field evaluation of a valved sediment trap. 1993. Limnology and Oceanography, 38, pp. 1741-1761 and Novel techniques for collection of sinking particles in the ocean and determining their settling rates. 2005. Limnology and Oceanography Methods 3, pp. 520-532). The IRS trap consists of four cylindrical modules; a particle interceptor, an IRS valve; a skewed funnel, and an eleven sample carousel (designated IRSC trap). The key to the trap design is the patented IRS valve located between the particle interceptor and particle accumulator portions of the trap. The valve and carousel are regulated by a TattleTale IVA (manufactured by Onset Computer Corp.) microprocessor and custom software. The IRS sediment trap was specifically designed to exclude zooplankton (Trull et al. 2008. Deep-Sea Research II v.55 pp. 1684-1695).

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
site	Arabian Sea site designation		no_bcodmo_term
mooring	Mooring identification		mooring
trap_type	WM= wide mouth particle interceptor (xs area 0.33 m2) NM= narrow mouth particle interceptor (xs area 0.017 m2) IRS=indented rotating sphere valve in line C=sample carousel in line NVC=No Valve (and no carousel) Control		no_bcodmo_term
deploy	Deployment number		no_bcodmo_term
depth_trap	Depth of trap	meters	no_bcodmo_term
date_set	Date of trap deployment	YYYYMMDD	no_bcodmo_term
lat	Latitude	decimal degrees	lat
lon	Longitude	decimal degrees	lon
carousel	Identification number of sample carousel on multi-trap arrays 1 = carousel #1 2 = carousel #2 3 = carousel #1 and #2 combined		no_bcodmo_term
cup	Sample cup number (position) in carousel		no_bcodmo_term
date_open	Date sample cup opened	YYYYMMDD	no_bcodmo_term
time_open	Time sample cup opened	hhmm	no_bcodmo_term
days_open	Elapsed time sample cup collected particle flux	days	no_bcodmo_term
sample_id	Unique analytical ID# given to each sample		no_bcodmo_term
flux_tot	Particulate mass flux	mg/m2/day	no_bcodmo_term
N_tot	Total nitrogen content of trapped particulate matter	percent	no_bcodmo_term
C_org	Organic carbon content of trapped particulate matter	percent	no_bcodmo_term
C_inog	Inorganic carbon content of trapped particulate matter	percent	no_bcodmo_term
C_org_sol_flux	Total organic carbon dissolved in a sample's brine solution expressed as carbon flux	mg C/m2/day	no_bcodmo_term

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Database

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Dataset: sedtrap_carbon