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Term: Mean annual ground-surface temperature (MAGST) Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary

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Definition: Mean annual temperature of the surface of the ground.  NSIDCCryosphere 

Mean annual temperature of the surface of the ground  IPAPermafrost 

Mean annual temperature of the surface of the ground. Permafrost exists if the Mean Annual Ground-Surface Temperature is perennially below 0C. Although the mean annual surface temperature may be below 0C, the surface temperature will fluctuate during the year, causing a layer of ground immediately beneath the surface to thaw in the summer and freeze in the winter (the Active Layer).  TrombottoGeocryology 

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