Dataset: sedtrap_pigments

Name: Deep sea sediment trap pigment data from US JGOFS Sediment Traps in the Southern Ocean, 1996-1998 (U.S. JGOFS AESOPS project)
Published: 2009-03-17
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-56.895 E:-169.6723 S:-66.1614 W:-170.1652

Project:

U.S. JGOFS Antarctic Environment and Southern Ocean Process Study (AESOPS)

Program:

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

Principal Investigator:

Cindy Lee (Stony Brook University, SUNY Stony Brook)

BCO-DMO Data Manager:

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

Version:

17 March 2009

Version Date:

2009-03-17

Validated:

Yes

Current State:

Final no updates expected

Deep sea sediment trap pigment data from US JGOFS Sediment Traps in the Southern Ocean, 1996-1998 (U.S. JGOFS AESOPS project)

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Description

Deep sea sediment trap pigment data

Methods & Sampling

   PI:              Cindy Lee
   of:              SUNY Stony Brook
   dataset:         Deep sea sediment trap pigment data
   dates:           August 30, 1996 to March 19, 1998
   location:        N: -53.0305  S: -76.49542  W: 176.88623  E: -168.6723
   project/cruise:  AESOPS/Southern Ocean 1996-1997 Mooring Deployment
                    Deployment: NBP 96-5
                    Recovery: NBP 98-2 Benthic Cruise
   ship:            R/V Nathaniel B. Palmer
 
   References:  Amino acids and chloropigments were analyzed according to
                methods in: Lee, C., S.G. Wakeham and J.I. Hedges (2000)
                Composition and flux of particulate amino acids and
                chloropigments in equatorial Pacific seawater and sediments.
                Deep-Sea Research I, 47: 1535-1568.

 Modification history:  YYMMDD
    090317:  latitude and longitude values changeded to negative
             to indicate West and South
  
   DMO note: During the EqPac and Arabian Sea sampling programs, the preferred
             units for pigment data were micrograms/m2/day.  The preferred
             unit of measurement in September 2002 is picomol/m2/day.

Data Files

File
sedtrap_pigments.csv (Comma Separated Values (.csv), 9.88 KB) MD5:9d02ba212d474b6d1de159bcc2a3bff5 Primary data file for dataset ID 2714

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AESOPS_Array	AESOPS-M1 AESOPS-M2 AESOPS-M3 AESOPS-M4 AESOPS-M5 AESOPS-M6 AESOPS-M7a AESOPS-M7b sediment trap	1996-11-28	JGOFS Sediment Trap	Susumu Honjo (Chief Scientist) Jack Dymond (Co-Chief Scientist)	data info
NBP-96-5	NBP9605 NBP96_5	1996-11-11	RVIB Nathaniel B. Palmer	Jack Dymond (Chief Scientist)	data info
NBP-98-2	NBP9802 NBP98_2	1998-02-25	RVIB Nathaniel B. Palmer	Susumu Honjo (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	Southern Ocean site designation		no_bcodmo_term
mooring	Mooring identification		mooring
trap_type	particle interceptor (xs area 0.017 m2) IRS=indented rotating sphere valve in line C=sample carousel in line		no_bcodmo_term
deploy	Deployment number		no_bcodmo_term
depth_trap	Depth of trap	meters	no_bcodmo_term
date_begin	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		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 tube colleted particle flux	days	no_bcodmo_term
sample	Unique analytical ID# given to each sample		sample
chl_a_f_mol	chlorophyll-a flux	picomol/m2/day	no_bcodmo_term
pp_phorbide_f_mol	pyrophaeophorbide-a flux	picomol/m2/day	no_bcodmo_term
p_phorbide_f_mol	phaeophorbide-a flux	picomol/m2/day	no_bcodmo_term
p_phytin_f_mol	phaeophytin-a flux	picomol/m2/day	no_bcodmo_term
fucox_f_mol	fucoxanthin flux	picomol/m2/day	no_bcodmo_term

Database

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Dataset: sedtrap_pigments