When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. Read more ...
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This map is an English language edition of a 16-sheet Russian map series of permafrost, for the period 1991-1996 (scale 1:2,500,000). The map sheets show distribution and mean annual temperature of frozen and unfrozen ground, types of seasonal freeze/thaw, permafrost thickness, relict permafrost, distribution of cyrogenic features, including cryopegs, strata types and characteristics, and pre-quaternary rock formations and regolith and their geocryological characteristics. English legends are provided for all 16 sheets. The English edition provides background information about the map's development and uses, and information about the translation of certain russian words pertaining to permafrost.