Dataset: th234_bottle
Deployment: TT007

Isotope activity, Go-Flo bottle samples

Principal Investigator:

James W. Murray (University of Washington, UW)

Dr Jennifer Young (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:

February 7, 2002

Deployment Synonyms:

EqPac Spring Survey

Version Date:

2002-02-07

Data URL:

https://www.bco-dmo.org/dataset-deployment/450826/data

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Description

Isotope activity, Go-Flo bottle samples

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Jennifer Young, James Murray
   of:              University of Washington
   dataset:         Isotope activity, Go-Flo bottle samples
   dates:           February 3, 1992 to March 9, 1992
   location:        N: 11.98  S: -12.03  W: -140.16  E: -135.0
   project/cruise:  EqPac/TT007 - Survey 1
   ship:            R/V Thomas Thompson
 
   Thorium-234 Sampling Methodology
   Isotope Sampling Methodology
 
 
   DMO notes:
 
   Dr. Murray's documentation states that the samples for dissolved and particulate
   fractions were filtered using either a 0.45 or 0.50 micron filter.  Since the
   samples were not flagged as to filter size, they all have been identified
   as being filtered at 0.45 microns.
 
   The 226Ra data comes from a Ra-Si regression determined from Teh-Lung Ku
   (University of Southern California) 226Ra data reported from samples
   taken at the same stations.
 
   The principal investigators have arranged the data to display depth
   profiles at nominal geographic station locations. The composite profiles
   have been assembled from three or more casts within a given station/location.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

GO-FLO Bottle

Supplied Name: Go-flo Bottle

Supplied Description:

30-l Go-Flo bottles used to collect seawater.

Instrument Type

Generic Name: GO-FLO Bottle

Acronym: GO-FLO

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/30/

Generic Description:

GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
sta	station number from event log		no_bcodmo_term
lat_n	nominal latitude, minus = South	degrees	no_bcodmo_term
lon_n	nominal longitude, minus = West	degrees	no_bcodmo_term
depth_n	nominal depth of sample	meters	no_bcodmo_term
Ra226_SiO4	Radium-226 as determined by a Ra-Si regression determined from 226Ra data at the same station (see Murray documentation)	dpm/m3	no_bcodmo_term
Th234_tot	thorium-234, total	dpm/m3	no_bcodmo_term
Th234_diss_lt0.45	thorium-234, dissolved lt0.45 microns	dpm/m3	no_bcodmo_term
Th234_part_gt0.45	thorium-234, particulate gt0.45 microns	dpm/m3	no_bcodmo_term
Pb210_tot	lead-210, total	dpm/m3	no_bcodmo_term
Pb210_diss_lt0.45	lead-210, dissolved lt0.45 microns	dpm/m3	no_bcodmo_term
Pb210_part_gt0.45	lead-210, particulate gt0.45 microns	dpm/m3	no_bcodmo_term
Po210_tot	polonium-210, total	dpm/m3	no_bcodmo_term
Po210_diss_lt0.45	polonium-210, dissolved lt0.45 microns	dpm/m3	no_bcodmo_term
Po210_part_gt0.45	polonium-210, particulate gt0.45 microns	dpm/m3	no_bcodmo_term
U238_tot	uranium-238, total	dpm/m3	no_bcodmo_term
PMC	particulate matter concentration	milligrams/m3	no_bcodmo_term

Database

Contribute Data

Dataset: th234_bottle
Deployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: th234_bottleDeployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: th234_bottle
Deployment: TT007