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Title: Synthesis of physical processes of permafrost degradation and geophysical and geomechanical properties of permafrost-affected soils.
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Award ID(s):
1927718
PAR ID:
10289551
Author(s) / Creator(s):
; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Cold regions science and technology
ISSN:
0165-232X
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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  1. null (Ed.)
  2. Moon, T.A.; Druckenmiller, M.L.; Thoman, R.L. (Ed.)
  3. Permafrost is ground that remains frozen year-round due to a cold climate; the active layer is the ground above the permafrost that thaws and re-freezes each year. Nearly 40 million acres of National Park Service (NPS) land in Alaska, similar to the size of Florida, lie within the zone of continuous or discontinuous permafrost. Permafrost can be classified as continuous (>90% of land area underlain by permafrost), discontinuous (90%-50%), sporadic (50%-10%), or isolated (<10%; Ferrians 1965). Permafrost is most vulnerable to climatic warming when its temperature is within a few degrees of thawing. Large-scale permafrost thawing would lead to a major reconfiguration of the landscape through the development of thermokarst (irregular topography resulting from ground ice melting). 
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