Dataset: GN01 Dissolved Pb - UAF

Name: Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502) from August to October 2015
Published: 2019-03-12
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.762056.1

Spatial Extent: N:89.995 E:179.5926 S:60.165 W:-179.8082

Temporal Extent: 2015-08-12 - 2015-10-08

Project:

Collaborative Research: GEOTRACES Arctic section: Spatial variability of lead concentrations and isotopic compositions in the western Arctic basins (GEOTRACES Arctic Pb)

U.S. Arctic GEOTRACES Study (GN01) (U.S. GEOTRACES Arctic)

Program:

U.S. GEOTRACES (U.S. GEOTRACES)

Principal Investigator:

Robert Rember (University of Alaska Fairbanks, UAF)

Co-Principal Investigator:

Edward A. Boyle (Massachusetts Institute of Technology, MIT)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2019-03-12

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502) from August to October 2015

Abstract:

Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502).

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2019-03-12	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.762056.1	2019-07-01

Description

Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502).

Methods & Sampling

Samples were collected according to Cutter and Bruland 2012, utilizing a trace metal clean rosette (GT-C rosette). Samples above 20 m were pumped from a hole drilled in the ice far away from the ship or from a small boat, using clean sampling techniques. Dissolved Pb analyses were performed using techniques described in Lagerstrom et al. (2013). Samples were acidified to pH 1.8 and left for 2 months prior to analysis. Intercalibration results were submitted to and approved by the GEOTRACES S & I committee (see Supplmental Documents).

Data Processing Description

WOCE Quality Flags:
2 – Ok,
3 – Questionable,
4 – Bad Analysis,
5 – Sample lost,
6 – Mean of replicates,
9 – Sample was not collected for Pb analysis.

Data Files

File
Pb_Dissolved_Rember.csv (Comma Separated Values (.csv), 31.08 KB) MD5:145aa1b2c3387025f57363f205fa9426 Primary data file for dataset ID 762056

Supplemental Files

File
GEOTRACES Arctic Intercalibration Document Dissolved Pb filename: Rember_Boyle_US_GT_Arctic_Dissolved_Pb.pdf (Portable Document Format (.pdf), 414.50 KB) MD5:cfa4420825e465ec6e4cb26d3be66f34 Dissolved Pb Intercalibration report for Rember & Boyle from GEOTRACES Arctic.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1459270

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
HLY1502	GN01 U.S. GEOTRACES Arctic 32H120150809	2015-08-09	USCGC Healy	David C. Kadko (Chief Scientist) William M. Landing (Co-Chief Scientist)	data info

Instruments

GO-FLO Teflon Trace Metal Bottle

Supplied Name: trace metal clean rosette (GT-C rosette)

Supplied Description:

Instrument Type

Generic Name: GO-FLO Teflon Trace Metal Bottle

Acronym: GO-FLO Teflon TM

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

Generic Description:

GO-FLO Teflon-lined Trace Metal free sampling bottles are used for collecting water samples for trace metal, nutrient and pigment analysis. The GO-FLO sampling bottle is designed specifically to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths.

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: ThermoFinnigan Element 2 Inductively Coupled Plasma Mass Spectrometer coupled (ICP-MS)

Supplied Description:

Dissolved Pb was measured at the University of Alaska, Fairbanks using an ThermoFinnigan Element 2 Inductively Coupled Plasma Mass Spectrometer coupled (ICP-MS) to an Elemental Scientific SeaFAST S2 (syringe based system).

Instrument Type

Generic Name: Inductively Coupled Plasma Mass Spectrometer

Acronym: ICP Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/

Generic Description:

An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
EXPOCODE	Cruise EXPO code	unitless	EXPOCODE
SECT_ID	Section ID	unitless	cruise_name
STNNBR	Station number	unitless	station
CASTNO	Cast number	unitless	cast
DATE	Date (UTC); format: yyyymmdd	unitless	date
TIME	Time (UTC); format: HHMM	unitless	time
LATITUDE	Latitude; positive values = North	decimal degrees	lat
LONGITUDE	Longitude; positive values = East	decimal degrees	lon
CTDPRS	CTD Pressure	decibars	press
CTDDEPTH	CTD Depth	meters (m)	depth
GEOTRC_SAMPNO	GEOTRACES sample number	unitless	sample
GEOTRC_EVENTNO	Event number	unitless	event
SAMPNO	Sequential sample number within the cast (usually corresponds to bottle number).	unitless	bottle
BTLNBR	Bottle number; typically 1-24.	unitless	bottle
PB_D_CONC_BOTTLE	Dissolved lead (Pb) concentration	picomoles per kilogram (pMol/kg)	trace_metal_conc
PB_CONC_FLAG	WOCE Quality Flag for PB_D_CONC_BOTTLE	unitless	q_flag