Dataset: poc
Deployment: TT007

Particulate organic C and N, total particulate carbon

Principal Investigator:

Jan Newton (University of Washington, UW)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

July 31, 2002

Deployment Synonyms:

EqPac Spring Survey

Version Date:

2002-07-31

Data URL:

https://www.bco-dmo.org/dataset-deployment/450840/data

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Description

Particulate organic C and N, total particulate carbon

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Jan Newton
   of:              University of Washington
   dataset:         Particulate organic carbon and nitrogen, total particulate carbon
   dates:           February 03, 1992 to March 08, 1992
   location:        N: 12.0102  S: -12.2083  W: -140.5219  E: -134.7269
   project/cruise:  EQPAC/TT007 - Spring Survey
   ship:            R/V Thomas Thompson
 
   Methodology
 
   EqPac bottle quality review summary from DMO
 
   DMO cautionary note:
   The DMO suspects a misalignment of either bottle numbers or the
   corresponding depths/pressures for events 02031635, 02040845 and
   02150770.  A shift of either bottle number or depth up or down by one
   sampling interval will align the data correctly.  However, we at the DMO
   are not in the position to make these corrections.
 
   Event number 02101209 bottle numbers and corresponding depths are
   questionable, but the correct solution is not easily identified.
   The entire cast is in question.
 
   These correlations are based on the event/bottle number/depths reported
   by Murray in his final bottle cast file.

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/operation number from event log		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
depth_n	nominal sample depth	meters	no_bcodmo_term
TPC	total particulate carbon, sample non-acidified, units converted by the US JGOFS Data Management Office	micromoles/liter	no_bcodmo_term
POC	particulate organic carbon, sample acidified, units converted by the US JGOFS Data Management Office	micromoles/liter	POC
PON	particulate organic nitrogen, units converted by the US JGOFS Data Management Office	micromoles/liter	PON
TPC_orig	total particulate carbon in units originally received from PI (sample non-acidified)	micrograms/liter	no_bcodmo_term
POC_orig	particulate organic carbon in units originally received from PI (sample acidified)	micrograms/liter	no_bcodmo_term
PON_orig	particulate organic nitrogen in units originally received from PI	micrograms/liter	no_bcodmo_term
C_to_N_orig	carbon nitrogen ratio as originally received from PI		no_bcodmo_term

Database

Contribute Data

Dataset: poc
Deployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: pocDeployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: poc
Deployment: TT007