Dataset: trace_Fe_Al

Name: Dissolved iron and aluminum concentrations from CTD casts from R/V Thomas G. Thompson TT045, TT049, TT050, TT053 cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)
Published: 2002-03-26
Keywords: oceans

View Data: to access data, check the deployments below

Cite This Dataset

Project:

U.S. JGOFS Arabian Sea (Arabian Sea)

Program:

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

Principal Investigator:

Christopher I. Measures (University of Hawai'i, UH)

BCO-DMO Data Manager:

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

Version:

March 26, 2002

Version Date:

2002-03-26

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Dissolved iron and aluminum concentrations from CTD casts from R/V Thomas G. Thompson TT045, TT049, TT050, TT053 cruises in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)

Expand/Collapse All

Description

Dissolved iron and aluminum concentrations from CTD casts

Methods & Sampling

See Platform deployments for cruise specific documentation

Data Processing Description

Measures notes and methods for trace metal concentrations

Notes

1. Iron (Fe) and Aluminum (Al) concentrations are in nmoles/liter 2. The filter column denotes whether or not the sample was filtered, and the filter size used (0 = not filtered; 0.2 = sample passed through 0.2 micron filter and 5 = sample passed through a 5 micron filter).

Methods

These samples were run using the methods found in: a) Measures, C.I., J. Yuan, and J.A. Resing, 1995. Determination of iron in seawater by flow injection analysis using in-line preconcentration and spectrophotometric detection. Marine Chemistry,50:3-12. b) Resing, J.A. and C.I. Measures, 1994. Fluorometric determination of Al in seawater by flow injection analysis with in-line preconcentration. Analytical Chemistry, 66:4105-4111.

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Science Foundation	unknown Arabian Sea NSF

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
TT045	TTN045 TN045 TTN-045	1995-03-14	R/V Thomas G. Thompson	John F. Marra (Chief Scientist)	data info
TT049	TTN049 TN049 TTN-049	1995-07-17	R/V Thomas G. Thompson	Richard Barber (Chief Scientist)	data info
TT050	TTN050 TN050 TTN-050	1995-08-18	R/V Thomas G. Thompson	Sharon L. Smith (Chief Scientist)	data info
TT053	TTN053 TN053 TTN-053	1995-10-29	R/V Thomas G. Thompson	William M. Balch (Chief Scientist)	data info

Instruments

Niskin bottle

Supplied Name: Niskin Bottle

Supplied Description:

CTD/Niskin Rosette bottles.

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

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

Supplied Name	Supplied description	Supplied Units	Standard Name
event	event number from event log		event
sta	station number from event log		no_bcodmo_term
sta_std	Arabian Sea standard station identifier		no_bcodmo_term
cast	cast number from event log		cast
bot	CTD rosette bottle number		no_bcodmo_term
press	sample depth reported as pressure	decibars	press
Fe_unfilt	iron concentration, unfiltered	nanomoles/liter	no_bcodmo_term
Al_unfilt	aluminum concentration, unfiltered	nanomoles/liter	no_bcodmo_term
AlFe_filt_sz	non-zero indicates filter size	microns	no_bcodmo_term
Fe_diss_lt0d2	dissolved iron conc.	nanomoles/liter	no_bcodmo_term
Al_diss_lt0d2	dissolved aluminum conc.	nanomoles/liter	no_bcodmo_term

Status message

Database

Contribute Data

Dataset: trace_Fe_Al

Measures notes and methods for trace metal concentrations

Notes

Methods