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permafrost
(redirected from Alpine permafrost)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
per·ma·frost  (pûrm-frôst, -frst)
n.
Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.


permafrost [ˈpɜːməˌfrɒst]
n
(Earth Sciences / Physical Geography) ground that is permanently frozen, often to great depths, the surface sometimes thawing in the summer
[from perma(nent) + frost]

permafrost  (pûrm-frôst)
A layer of soil or bedrock that has been continuously frozen for at least two years and as long as tens of thousands of years. Permafrost can reach depths of up to 1,524 m (4,999 ft). It is found throughout most of the polar regions and underlies about one fifth of the Earth's land surface.

Permanently frozen subsoil.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.permafrost - ground that is permanently frozenpermafrost - ground that is permanently frozen    
land, soil, ground - material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use); "the land had never been plowed"; "good agricultural soil"
Translations
permafrost [ˈpɜːməfrɒst] Npermagel m
permafrost
permafrost [ˈpɜːməˌfrɒst] npermafrost m inv


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The SLF scientist points out that "extremely hot periods"--for instance the summer of 2003 and July 2006--resulted in deepening the active layer of rock walls with increased creep rates and rock fall in Alpine permafrost.
 
 
 
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