Dataset: TOC
Deployment: TT012

Total Organic Carbon from Niskin bottle casts

Principal Investigator:

Hugh W. Ducklow (Marine Biological Laboratory Ecosystems Center, MBL - Ecosystems)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

September 05, 2002

Deployment Synonyms:

EqPac Fall Time Series

Version Date:

2002-09-05

Data URL:

https://www.bco-dmo.org/dataset-deployment/450951/data

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Description

Total Organic Carbon from Niskin bottle casts

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Hugh Ducklow
   of:              Horn Point Environmental Laboratory
   dataset:         Particulate carbon and nitrogen, total organic carbon
   dates:           October 02, 1992 to October 21, 1992
   location:        N: 0.079  S: -0.1278  W: -140.1502  E: -139.8927
   project/cruise:  EQPAC/TT012 - Fall Time Series
   ship:            Thomas Thompson
 
   Methodology:  U.S. JGOFS Equatorial Pacific Process Study
   Sampling and Analytical Protocols (section 18)
 
   Reference:  Carlson, C.A. and H.W. Ducklow, 1995.  Dissolved organic carbon
   in the upper ocean of the central equatorial Pacific Ocean, 1992:
   Daily and finescale vertical variations.
   Deep-Sea Research II, vol 42, No. 2-3, pp 639-656.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

Niskin bottle

Supplied Name: Niskin Bottle

Supplied Description:

CTD clean rosette (Niskin) bottles were used to collect water samples.

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	operation number per event log	as MMDDhhmm	event
sta	station number per event log		no_bcodmo_term
cast	CTD cast number per event log		cast
bot	CTD rosette bottle number		no_bcodmo_term
depth	sample depth	meters	depth
TOC	total organic carbon (volume basis)	micromoles C/liter	no_bcodmo_term
TOC_kg	total organic carbon (mass basis)	micromoles C/kilogram	no_bcodmo_term
depth_n	nominal depth of sample	meters	no_bcodmo_term
TPC	total particulate carbon	micromoles/liter	no_bcodmo_term
PON	particulate organic nitrogen	micromoles/liter	PON

Database

Contribute Data

Dataset: TOC
Deployment: TT012

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: TOCDeployment: TT012

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: TOC
Deployment: TT012