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Methane Isotopes from the WAIS Divide Ice Core

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Identification Information:

Dataset Identifier:

NSIDC-0435

Citation:

Citation Information:

Originator: Sowers, Todd
Publication Date: 20091201
Title: Methane Isotopes from the WAIS Divide Ice Core
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/nsidc-0435.html
Online Linkage: http://dx.doi.org/10.7265/N5J67DW0

Description:

Abstract:

This data set includes methane (CH4) isotope data from the West Antarctic Ice Sheet (WAIS) Divide ice core, WDC05A, in Antarctica. The data include depth, gas age, and the isotopic composition of methane (∂13C and ∂D of CH4). The ice core was collected during the 2005-2006 Antarctic field season. The CH4 isotope data was generated in 2008 using wet extraction methodology. Samples span the last 1,000 years, at a resolution of about 15 years. Data for samples above 69 meters were from firn air, and data below 69 meters from ice. The dating of the ice was based on continuous chemical analyses above 69 meters and Electrical Conductivity/Dielectric Property (ECM/DEP) measurements from ice. Dating uncertainty is estimated to be better than five years.

Data are available via FTP in Microsoft Excel (.xls) tab delimited format

Purpose: scientific research

Documentation:

User's Guide:

Citation Information:

Originator: Sowers, Todd
Publication Date: 20091201
Title: Methane Isotopes from the WAIS Divide Ice Core
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/docs/agdc/nsidc0435_sowers/index.html

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 20080101
Ending Date: 20081230

Currentness Reference: publication date

Status:

Progress: Complete
Maintenance and Update Frequency: Unknown

Spatial Domain:

Bounding Coordinates:

 

West Bounding Coordinate: 112.09°
East Bounding Coordinate: 112.09°
North Bounding Coordinate: -79.47°
South Bounding Coordinate: -79.47°

Keywords:

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
Theme Keyword: EARTH SCIENCE Cryosphere Glaciers/Ice Sheets Ice Sheets
Theme Keyword: EARTH SCIENCE Cryosphere Snow/Ice Snow/Ice Chemistry
Theme Keyword: EARTH SCIENCE Paleoclimate Ice Core Records Isotopes
Theme Keyword: EARTH SCIENCE Paleoclimate Ice Core Records Methane
Theme Keyword: EARTH SCIENCE Terrestrial Hydrosphere Snow/Ice Snow/Ice Chemistry

Theme:

Theme Keyword Thesaurus: None
Theme Keyword:

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
Theme Keyword: MASS SPECTROMETERS
Theme Keyword: SPECTROMETERS

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
Theme Keyword: FIELD INVESTIGATION
Theme Keyword: FIELD SURVEYS
Theme Keyword: LABORATORY

Theme:

Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: climatologyMeteorologyAtmosphere

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: Firn Air Isotopes
Theme Keyword: Ice Sheet
Theme Keyword: West Antarctic Ice Sheet

Place:

Place Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
Place Keyword: Continent Antarctica
Place Keyword: Geographic Region Polar

Temporal:

Temporal Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Chronostratigraphic Unit Keywords
Temporal Keyword: Phanerozoic Cenozoic Cenozoic

Access Constraints:

None

Use Constraints:

None

Point of Contact:

Contact Information:

Contact Person Primary:

Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center

Contact Address:

Address Type: mailing
Address:
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199 x
Contact Facsimile Telephone: 1 303 492-2468 x
Contact Electronic Mail Address: nsidc@nsidc.org

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Distribution Information:

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: National Snow and Ice Data Center
Contact Person: NSIDC User Services

Contact Address:

Address Type: mailing
Address:
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org

Resource Description:

NSIDC-0435

Distribution Liability:

NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: Microsoft Excel

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: Click here.

Fees: None

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Metadata Reference Information:

Metadata Date:

20130320

Metadata Review Date:

20130320

Metadata Contact:

Contact Information:

Contact Person Primary:

Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center

Contact Address:

Address Type: mailing
Address:
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org

Metadata Standard Name:

FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata

Metadata Standard Version:

FGDC-STD-012-2002

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Metadata Views

FGDC Text-Only

Federal Geographic Data Committee (FGDC) in plain text

FGDC XML

Federal Geographic Data Committee (FGDC) in Extensible Markup Language (XML)

DIF HTML

NASA Global Change Master Directory (GCMD) Directory Interchange Format (DIF)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata