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Term: Perpetual frost climate Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary

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Definition: Climate of the ice-cap regions; the temperatures are sufficiently low that ablation does not exceed the annual accumulation of snow and ice.  WMOMeteoterm 

In general, the climate of the ice cap regions of the world; thus, it requires temperatures sufficiently cold so that the annual accumulation of snow and ice is never exceeded by ablation. The perpetual frost climate is one of the polar climates in W. Köppen's climatic classification and is characterized by a warmest-month mean temperature of less than 0C (32F). It is designated by letter code EF and is equivalent to the frost climate of C. W. Thornthwaite's classifications and to Nordenskjöld's (1928) high arctic climate. (Also called frost climate, ice-cap climate.)  AMSglossary 

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