Dataset: manganese

Name: Dissolved and total dissolvable manganese concentration from R/V Thomas G. Thompson TT045 cruise in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)
Published: 2002-03-13
Keywords: oceans

Cite This Dataset

Project:

U.S. JGOFS Arabian Sea (Arabian Sea)

Program:

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

Principal Investigator:

Dr Brent Lewis (University of Delaware)

Co-Principal Investigator:

George W. Luther (University of Delaware)

BCO-DMO Data Manager:

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

Version:

March 13, 2002

Version Date:

2002-03-13

Validated:

Yes

Current State:

Final no updates expected

Dissolved and total dissolvable manganese concentration from R/V Thomas G. Thompson TT045 cruise in the Arabian Sea in 1995 (U.S. JGOFS Arabian Sea project)

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Description

Dissolved and total dissolvable manganese concentrations from CTD casts

Methods & Sampling

   PI:             Brent Lewis and George Luther
   of:             University of Delaware
   dataset:        Dissolved manganese concentrations from CTD casts
   dates:          March 15, 1995 to April 08, 1995
   location:       N: 22.4858  S: 9.9993  W: 58.0005  E: 68.7302
   project/cruise: Arabian Sea/TTN-045, Process cruise #2 (Spring Intermonsoon)
   ship:           R/V Thomas Thompson
 
   Lewis Note regarding 9/98 re-submission of data:
   Data for dissolved and total dissolvable Mn have been corrected to
   account for a prior error in calibration.  Current values have been
   verified by comparison to the NASS-4 SRM and by DDDC/APDC extraction
   with GFAAS analysis.

Data Processing Description


Brent Lewis notes and methods for manganese concentrations

Notes:

    1. Dissolved manganese (Mn) concentrations are in nmoles/liter.

    2. Filtered (Mn_filt) samples were passed through a 0.45 micron
    membrane filter.

    3. Samples were acidified with Q-HCl to pH

Data Files

File
manganese.csv (Comma Separated Values (.csv), 5.89 KB) MD5:d5b17af063b7ee3511d5e026484c14c7 Primary data file for dataset ID 2550

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

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_std	Arabian Sea standard station identifier		no_bcodmo_term
sta	station number from event log		no_bcodmo_term
cast	CTD rosette cast number from event log		cast
bot	CTD rosette bottle number		no_bcodmo_term
depth_n	sample depth reported as pressure	decibars	no_bcodmo_term
Mn_diss_lt0d45	dissolved Mn conc.	nanomoles/liter	no_bcodmo_term
Mn_unfilt	total dissolvable Mn conc. of unfiltered sample (dissolved plus particulate)	nanomoles/liter	no_bcodmo_term

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Database

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Dataset: manganese