Ground Temperature Map of the Northern Hemisphere Permafrost

Obu, Jaroslav; Westermann, Sebastian; Kääb, Andreas; Bartsch, Annett

The map provides mean annual ground temperatures (MAGT) and permafrost probability at a spatial resolution of 1 km for unglacierized areas of the Northern Hemisphere down to 25 ° latitude. Each grid cell is classified as continuous, discontinuous and sporadic permafrost based on the probability of permafrost occurrence within a grid cell.

This is a preliminary dataset and a first validation with GTN-P and TSP borehole ground temperature data yielded RMS of 2.3 °C. The PEX Product contains 3 files: Mean Annual Ground Temperature (MAGTM), Permafrost Probability (PERPROB) and MAGT Standard Deviation (MAGTSTD).

More Information about the classification method can be found in the product guide.

To request access to data please contact GlobPermafrost.

Interested parties will be granted the user password.


Obu, Jaroslav; Westermann, Sebastian

Data and Resources

Additional Info

Field Value
Project(s) ESA GlobPermafrost
Institute University of Oslo
Publication Date
Version 3.0
Product group Permafrost Extent and Properties PEX
Product Modeled Ground Temperature
  • Mean Annual Ground Temperature (MAGT)
  • MAGT Standard Deviation
  • Permafrost Probability Fraction
  • Permafrost Zonation
Variables [Units]
  • Mean Annual Ground Temperature (MAGT)
  • Permafrost Probability
  • MAGT Standard Deviation
Region Circum-Arctic
Spatial Reference EPSG:3995 WGS 84 / Arctic Polar Stereographic
Spatial Resolution 1000 m
Spatial Coverage
Temporal Coverage
Temporal Resolution
Format Geotiff
end_time 2016
start_time 2000

Dataset extent

Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under CC BY SA.