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Dates

Original Data Basin Creation Date
2011-02-10 07:34:06
Original Data Basin Modified Date
2011-05-11 18:17:55

Summary

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. [...]

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  • Data Basin

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Provenance

Data source
National Snow and Ice Data Center, USA
Harvested on Fri May 23 09:40:14 MDT 2014 from Data Basin Service

Additional Information

Identifiers

Type Scheme Key
UniqueKey Data Basin 1f624a31ab224835a78ad4bf11103419

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