Circum-Arctic Map of Permafrost and Ground-Ice Conditions View Catalog Page Entry ID
GGD318
Summary
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).
Geographic Coverage
Spatial Coordinates: N: 90°
S: 28°
E: 180°
W: -180°
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Multimedia Sample
Map Thumbnail
Browse image of Circum-Arctic Map of Permafrost and Ground-Ice Conditions.
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Data Set Citation
Dataset Creator: Brown, J., O.J. Ferrians, Jr., J.A. Heginbottom, and E.S. Melnikov. Dataset Title: Circum-Arctic Map of Permafrost and Ground-Ice Conditions Dataset Release Date: 2002-02-01 Dataset Release Place: Boulder, Colorado USA Dataset Publisher: NSIDC: National Snow and Ice Data Center Version: 2 Online Resource: http://nsidc.org/data/ggd318.html
Location Keywords
- GEOGRAPHIC REGION
POLAR CIRCUMPOLAR
Science Keywords
- Cryosphere
Frozen Ground Ground Ice
- Cryosphere
Frozen Ground Permafrost
- Land Surface
Frozen Ground Ground Ice
- Land Surface
Frozen Ground Permafrost
Ancillary Keywords
- Boreholes
- Continuous Permafrost
- Discontinuous Permafrost
- Mapping
- Permafrost Extent
- Geoscientific Information
- Imagery/Base Maps/Earth Cover
Data Center
National Snow and Ice Data Center Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services Phone: 1 303 492-6199 Fax: 1 303 492-2468 Email: nsidc@nsidc.org Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA
NSIDC Frozen Ground Data Center Data Center URL: http://nsidc.org/fgdc/
Data Center Personnel
Name: NSIDC FGDC User Services Phone: 1 303 492-6199 Fax: 1 303 492-2468 Email: nsidc@nsidc.org Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA
Distribution
Distribution Media: FTP Distribution Size: 24 MB Distribution Format: ESRI Shapefiles
Personnel
J. Alan Heginbottom Role: INVESTIGATOR Phone: 1 613 992-7813 Fax: 1 613 992-2468 Email: heginbottom@gsc.emr.ca Contact Address:
- Natural Resources Canada
- Terrain Science Division
- 601 Booth Street
City: Ottawa Province or State: Ontario Postal Code: K1A 0E8 Country: Canada
Jerry Brown Role: INVESTIGATOR Phone: 1 508 457-4982 Fax: 1 508 457-4982 Email: jerrybrown@igc.apc.org Contact Address:
- International Permafrost Association
- PO Box 7
City: Woods Hole Province or State: MA Postal Code: 02543 Country: USA
Oscar Ferrians Role: INVESTIGATOR
E.S. Melnikov Role: INVESTIGATOR Phone: 7-095-135-9828 Fax: 7-095-135-6582 Email: emelnikov@mtu-net.ru Contact Address:
- Russian Academy of Sciences, Siberian Branch
- Laboratory of Geocryological Prediction and Informatics of Earth Cryosphere Inst
- Vavilov Str. 30/6-74a
City: Moscow Postal Code: GSP-1, 119 Country: Russia
Related URL
VIEW PROJECT HOME PAGE NSIDC offers some of our data in the form of images. We have created Google Earth files that enable you to overlay these and other data-based images on a virtual globe.
VIEW PROJECT HOME PAGE View NSIDC Data on Virtual Globes: Google Earth
VIEW RELATED INFORMATION Atlas of the Cryosphere
VIEW RELATED INFORMATION GIS Data and Resources at NSIDC
Reference
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Metadata Name and Version
Metadata Name: CEOS IDN DIF Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2002-02-01 Last DIF Revision Date: 2013-03-07
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