Dataset: tco2
Deployment: TT011

Total carbon dioxide and total alkalinity

Principal Investigator:

Dr David Archer (University of Chicago)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

final

Deployment Synonyms:

EqPac Fall Survey

Version Date:

2002-06-25

Data URL:

https://www.bco-dmo.org/dataset-deployment/450888/data

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Description

Total carbon dioxide and total alkalinity

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              David Archer
   of:              University of Chicago
   dataset:         Total carbon dioxide & alkalinity
   dates:           August 10, 1992 to September 15, 1992
   location:        N: 12.025  S: -11.9767  W: -141.4433  E: -134.9117
   project/cruise:  EQPAC/TT011 - Fall Survey
   ship:            R/V Thomas Thompson
 
   Methodology:
   David Archer and Taro Takahashi (1993).
   Protocols for Measurement of pCO2, Total CO2, and Alkalinity
   on the Equatorial Pacific JGOFS Survey Cruises
   U.S. Joint Global Ocean Flux Study -
   Equatorial Pacific Protocols, 1993, section 3.
 
   EqPac bottle quality review summary from DMO

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	event number from event log, composed of date, time decoded as MMDDHHmm (month, day, hours, minutes)		event
sta	station number from event log		no_bcodmo_term
cast	CTD cast number from event log		cast
bot	CTD rosette bottle number		no_bcodmo_term
press	depth of sample reported as pressure	decibars	press
TCO2	total carbon dioxide	micromoles/kilogram	no_bcodmo_term
TALK	total alkalinity	micromoles/kilogram	no_bcodmo_term
pCO2_20	partial pressure of CO2 at 20 degrees C	microatmospheres	no_bcodmo_term
pCO2_is	in situ partial pressure of CO2 calc. from pco2-20	microatmospheres	no_bcodmo_term
depth	depth of sample	meters	depth

Database

Contribute Data

Dataset: tco2
Deployment: TT011

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: tco2Deployment: TT011

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: tco2
Deployment: TT011