Dataset: nutrients
Deployment: TT008

Nutrients from bottle casts

Principal Investigator:

Patricia Wheeler (Oregon State University, OSU)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

September 5, 2002

Deployment Synonyms:

EqPac Spring Time Series

Version Date:

2002-09-05

Data URL:

https://www.bco-dmo.org/dataset-deployment/450885/data

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Description

Nutrients from bottle casts

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Patricia Wheeler
   of:              Oregon State University
   dataset:         Nutrients
   dates:           March 23, 1992 to April 14, 1992
   location:        N: 9.0905  S: -0.0145  W: -140.0512  E: -139.9305
   project/cruise:  EQPAC/TT008 - Spring Time Series
   ship:            Thomas Thompson
 
   Methodology:  U.S. JGOFS Equatorial Pacific Process Study
   Sampling and Analytical Protocols (section 13)
 
   DMO cautionary note:
   The PI has flagged the following samples as suspect, most likely due
   either to mistrip or leaking bottles:
   cast 13 bottles 2,3,4
   cast 15 bottles 2,3
   cast 64 bottles 1,2,3
   cast 68 bottles 1,2,3

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 per event log		event
sta	station number per event log		no_bcodmo_term
cast	CTD cast number per event log		cast
date	date as year month day GMT	yymmdd	no_bcodmo_term
time	time of day GMT	decimal hours	no_bcodmo_term
bot	CTD rosette bottle number		bot
press	sample depth reported as pressure	decibars	press
NH4	ammonium	micromoles/liter	NH4
NO3	nitrate	micromoles/liter	no_bcodmo_term
NO2	nitrite	micromoles/liter	no_bcodmo_term
PO4	phosphate	micromoles/liter	PO4
SiO4	silicate	micromoles/liter	no_bcodmo_term
urea	urea	micromoles N/liter	no_bcodmo_term
depth	sample depth	meters	depth

Database

Contribute Data

Dataset: nutrients
Deployment: TT008

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: nutrientsDeployment: TT008

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: nutrients
Deployment: TT008