New permafrost mapping at the hemispheric scale has just been published by Dr. Jaroslav Obu (University of Oslo) and co-authors. Here is Dr. Obu’s introduction to the work: We are delighted to present a new permafrost map of the Northern Hemisphere, which is a result of joint collaboration between 21 permafrost experts from 9 different countries. The map presents mean annual ground temperature, permafrost occurrence probability and permafrost zones at 1km2 resolution.

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Average MAGT at TTOP of all model realizations for the Northern Hemisphere. Glacier/ice-sheet areas are extracted from the ESA CCI Landcover product. Background topography is from the GMTED2010 elevation model. Figure and caption from Obu et al., 2019.