GRIDArendal:
Permafrost in the Northern Hemisphere
GRIDArendal:
Permafrostregion der Nordhemisphäre (Permafrost in the Northern Hemisphere: German)
GRIDArendal:
Permafrost på den nordlige halvkule (Permafrost in the Northern Hemisphere: Norwegian)
GRIDArendal:
Многолетняя мерзлота в северном полушарии (Permafrost in the Northern Hemisphere: Russian)
GRIDArendal:
Global distribution of permafrost: Dymaxion map