You are here: Home News Northern Hemisphere Ground Temperature Map published on Pangaea

Northern Hemisphere Ground Temperature Map published on Pangaea

Northern Hemisphere Ground Temperature Map published on Pangaea

MAGTby University of Oslo/GlobPermafrost

A new Northern Hemisphere Ground Temperature Map has been published on Pangaea:

Obu, Jaroslav; Westermann, Sebastian; Kääb, Andreas; Bartsch, Annett (2018): Ground Temperature Map, 2000-2016, Northern Hemisphere Permafrost. Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.888600

The product provides modeled mean annual ground temperatures (MAGT) at the top of the permafrost for the Northern Hemisphere at 1 km spatial resolution. Permafrost probability (fraction values from 0 to 1) is assigned to each grid cell with MAGT < 0°C. Based on its permafrost probability each grid cell is classified as continuous, discontinuous and sporadic permafrost. The processing extent covers exposed land areas of the Northern Hemisphere down to 25 ° latitude. The mean MAGT was validated with GTN-P and TSP borehole ground temperature data and yielded a RMS of 2.0 °C. According to the results, permafrost (MAGT < 0 °C) covers 15 % of exposed land of the Northern Hemisphere.
Following files are provided in geotiff format:
  • Mean Annual Ground Temperature (MAGTM) [C°]
  • MAGT Standard Deviation (MAGTSTD) [C°]
  • Permafrost Probability Fraction (PERPROB) [Fraction, 0-1]
Permafrost Zonation (PERZONES) is provided as ESRI shapefile.
All files are provided in Arctic Polar Stereographic projection (EPSG:3995 WGS 84).
More Information about the modelling method can be found in the product guide.