Dataset: rad_sed_trap

Name: Radionuclides, moored sediment trap samples collected from the U.S. JGOFS EqPac Sediment Trap Array in the Equatorial Pacific in 1992 during the U.S. JGOFS Equatorial Pacific (EqPac) project
Published: 2002-04-22
Keywords: oceans

Cite This Dataset

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Program:

U.S. Joint Global Ocean Flux Study (U.S. JGOFS)

Principal Investigator:

Robert F. Anderson (Lamont-Doherty Earth Observatory, LDEO)

BCO-DMO Data Manager:

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

Version:

April 22, 2002

Version Date:

2002-04-22

Validated:

Yes

Current State:

Final no updates expected

Radionuclides, moored sediment trap samples collected from the U.S. JGOFS EqPac Sediment Trap Array in the Equatorial Pacific in 1992 during the U.S. JGOFS Equatorial Pacific (EqPac) project

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Description

Radionuclides, moored sediment trap samples

Methods & Sampling

   PI:              Bob Anderson
   of:              Lamont-Doherty Earth Observatory
   dataset:         Radionuclides, moored sediment trap samples

Data Files

File
rad_sed_trap.csv (Comma Separated Values (.csv), 3.13 KB) MD5:a4089aade676a81d571ff20229139dcb Primary data file for dataset ID 2607

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
EqPac-Array	W9201B EqPac-1 sediment trap	1992-01-12	JGOFS Sediment Trap	Susumu Honjo (Principal Investigator) Jack Dymond (Co-Principal Investigator)	data info

Instruments

Accelerator Mass Spectrometer

Supplied Description:

Instrument Type

Generic Name: Accelerator Mass Spectrometer

Acronym: AMS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB17/

Generic Description:

An AMS measures "long-lived radionuclides that occur naturally in our environment. AMS uses a particle accelerator in conjunction with ion sources, large magnets, and detectors to separate out interferences and count single atoms in the presence of 1x1015 (a thousand million million) stable atoms, measuring the mass-to-charge ratio of the products of sample molecule disassociation, atom ionization and ion acceleration." AMS permits ultra low-level measurement of compound concentrations and isotope ratios that traditional alpha-spectrometry cannot provide. More from Purdue University: http://www.physics.purdue.edu/primelab/introduction/ams.html

Sediment Trap

Supplied Description:

Instrument Type

Generic Name: Sediment Trap

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/33/

Generic Description:

Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
sta_name	station name		no_bcodmo_term
lat_n	latitude, nominal, minus means South	degrees	no_bcodmo_term
lon_n	longitude, nominal, minus means West	degrees	no_bcodmo_term
depth_trap	depth of sediment trap	meters	no_bcodmo_term
cup	cup number(s) from which sample was collected		no_bcodmo_term
date_begin	date sampling begins, as YYYYMMDD		no_bcodmo_term
date_end	date sampling ends, as YYYYMMDD		no_bcodmo_term
Pb210_part_lt1mm	lead-210, particulate	dpm/gram	no_bcodmo_term
Pb210_err	lead-210 error, plus/minus 1 sigma	dpm/gram	no_bcodmo_term
Th230_part_lt1mm	thorium-230, particulate	dpm/gram	no_bcodmo_term
Th230_err	thorium-230 error, plus/minus 1 sigma	dpm/gram	no_bcodmo_term
Pa231_part_lt1mm	protactinium-231 particulate	dpm/gram	no_bcodmo_term
Pa231_err	protactinium-231 error, plus/minus 1 sigma	dpm/gram	no_bcodmo_term
Be10_part_lt1mm	beryllium-10, particulate	atoms/gram	no_bcodmo_term
Be10_err	beryllium-10 error, plus/minus 1 sigma	atoms/gram	no_bcodmo_term

Status message

Database

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Dataset: rad_sed_trap