Dataset: sedtrap_lipids
Deployment: NBP-98-2

Deep sea sediment trap lipid data

Principal Investigator:

Stuart Wakeham (Skidaway Institute of Oceanography, SkIO)

BCO-DMO Data Manager:

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

Project:

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

Version:

17 March 2009

Deployment Synonyms:

NBP9802, NBP98_2

Version Date:

2009-03-17

Data URL:

https://www.bco-dmo.org/dataset-deployment/451144/data

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Description

Deep sea sediment trap lipid data

Methods & Sampling

Dataset acquisition description

PI:               Stuart Wakeham
of:               Skidaway Institute of Oceanography
dataset:          Deep sea sediment trap lipid data

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


Reference:       Neutral lipids, acids, and total lipids were analyzed
                  according to methods in:
                  Wakeham et al., Deep-Sea Res. II 44: 2131-2162 (1997)

Raw combined lipid data (downloadable excel format files)
 
 Modification history:  YYMMDD
    090317:  latitude and longitude values changeded to negative
             to indicate West and South

Deployment-specific acquisition description

   PI:              Stuart Wakeham
   of:              Skidaway Institute of Oceanography
   dataset:         Deep sea sediment trap lipid 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
 
   Reference:       Neutral lipids, acids, and total lipids were analyzed
                    according to methods in:
                    Wakeham et al., Deep-Sea Res. II 44: 2131-2162 (1997)
 
   Raw combined lipid data (excel format file)
 
 Modification history:  YYMMDD
    090317:  latitude and longitude values changeded to negative
             to indicate West and South

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

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

Supplied Name	Supplied description	Supplied Units	Standard Name
date_begin	Date of trap deployment	YYYYMMDD	no_bcodmo_term
date_open	Date sample cup opened	YYYYMMDD	no_bcodmo_term
deploy	Deployment number		no_bcodmo_term
depth_trap	Depth of trap	meters	no_bcodmo_term
days_open	Elapsed time sample cup collected particle flux	days	no_bcodmo_term
carousel	Identification number of sample carousel on multi-trap arrays		no_bcodmo_term
lat	Latitude	decimal degrees	lat
lon	Longitude	decimal degrees	lon
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
cup	Sample cup number (position) in carousel		no_bcodmo_term
site	Southern Ocean site designation		no_bcodmo_term
lipids_tot	Sum of neutral and acidic fractions	micrograms/m2/day	no_bcodmo_term
time_open	Time sample cup opened	hhmm	no_bcodmo_term
lipids_acid	Total of chromatographically-resolved compounds in the acidic fraction	micrograms/m2/day	no_bcodmo_term
lipids_neut	Total of chromatographically-resolved compounds in the neutral lipid fraction	micrograms/m2/day	no_bcodmo_term
sample	Unique analytical ID# given to each sample		sample

Database

Contribute Data

Dataset: sedtrap_lipids
Deployment: NBP-98-2

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: sedtrap_lipidsDeployment: NBP-98-2

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: sedtrap_lipids
Deployment: NBP-98-2