Circum-Arctic Map of Permafrost and Ground-Ice Conditions  View Catalog Page
Identification Information:
Dataset Identifier:
GGD318
Citation:
Citation Information:
Originator: Brown, J., O.J. Ferrians, Jr., J.A. Heginbottom, and E.S. Melnikov.
Publication Date: 20020201
Title: Circum-Arctic Map of Permafrost and Ground-Ice Conditions
Edition: 2
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/ggd318.html
Description:
Abstract:
The Circum-Arctic permafrost and ground ice map is available via ftp in ESRI Shapefile format and Equal-Area Scalable Earth Grid (EASE-Grid) format. See the Format section for an explanation of the files provided via ftp.
The circumpolar permafrost and ground ice data contribute to a unified international data set that depicts the distribution and properties of permafrost and ground ice in the Northern Hemisphere (20°N to 90°N). The re-gridded data set shows discontinuous, sporadic, or isolated permafrost boundaries. Permafrost extent is estimated in percent area (90-100%, 50-90%, 10-50%, <10%, and no permafrost). Relative abundance of ground ice in the upper 20 m is estimated in percent volume (>20%, 10-20%, <10%, and 0%). The data set also contains the location of subsea and relict permafrost. the gridded data are gridded at 12.5 km, 25 km, and 0.5 degree resolution. The shapefiles were derived from the original 1:10,000,000 paper map (Brown et al. 1997)
Permafrost, or permanently frozen ground, is ground (soil, sediment, or rock) that remains at or below 0°C for at least two years (Permafrost Subcommittee, 1988). It occurs both on land and beneath offshore arctic continental shelves, and underlies about 22% of the Earth's land surface.
For more information on the creation of the original map, see Heginbottom et al. (1993). The original paper map also includes information on the relative abundance of ice wedges, massive ice bodies and Pingos, ranges of permafrost temperature and thickness (Brown et al. 1997).
Purpose: scientific research
Documentation:
User's Guide:
Citation Information:
Originator: Brown, J., O.J. Ferrians, Jr., J.A. Heginbottom, and E.S. Melnikov.
Publication Date: 20020201
Title: Circum-Arctic Map of Permafrost and Ground-Ice Conditions
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/docs/fgdc/ggd318_map_circumarctic/index.html
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: Unknown
Ending Date: Unknown
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: Unknown
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -180°
East Bounding Coordinate: 180°
North Bounding Coordinate: 90°
South Bounding Coordinate: 28°
Keywords:
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
Theme Keyword: EARTH SCIENCE Cryosphere Frozen Ground Ground Ice
Theme Keyword: EARTH SCIENCE Cryosphere Frozen Ground Permafrost
Theme Keyword: EARTH SCIENCE Land Surface Frozen Ground Ground Ice
Theme Keyword: EARTH SCIENCE Land Surface Frozen Ground Permafrost
Theme:
Theme Keyword Thesaurus: None
Theme Keyword:
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: geoscientificinformation
Theme Keyword: imageryBaseMapsEarthCover
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: Boreholes
Theme Keyword: Continuous Permafrost
Theme Keyword: Discontinuous Permafrost
Theme Keyword: Mapping
Theme Keyword: Permafrost Extent
Place:
Place Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
Place Keyword: Geographic Region Polar Circumpolar
Access Constraints:
None
Use Constraints:
None
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person: J. Alan Heginbottom
Contact Organization: Natural Resources Canada, Terrain Science Division
Contact Address:
Address Type: mailing
Address:
City: Ottawa
State or Province: Ontario
Postal Code: K1A 0E8
Country: Canada
Contact Voice Telephone: 1 613 992-7813
Contact Facsimile Telephone: 1 613 992-2468
Contact Electronic Mail Address: heginbottom@gsc.emr.ca
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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:
GGD318
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: ESRI Shapefiles
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:
20130307
Metadata Review Date:
20130307
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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