Reference permafrost map from historical sources

A reference permafrost map has been developed based on historical data.

The map was created basing on paper permafrost maps published from 1970 to 1988.  Practically it is a collection of five different maps (for Russia, Mongolia, China, Canada and Alaska) that are difficult to merge because of differences in permafrost thickness and temperature classification. In order to create digital maps paper maps have been scanned and digitized using ArcGIS software. The result data is shapefiles representing permafrost boundary, permafrost depth, temperature of permafrost and active layer thickness.

Documentation: D1.3.1 report