DYNAMICS OF PERMAFROST IN THE COASTAL ZONE OF EASTERN-ASIAN SECTOR OF THE ARCTIC

The study summarizes results on the cryogenic dynamics in the coastal zone. The paper shows that ongoing climate warming and shrinking of ice extent of the Arctic seas triggers both thermogenic and cryogenic processes at the same time. The first group includes thermal abrasion, thermal denudation, d...

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Bibliographic Details
Published in:GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY
Main Authors: Anatoly Gavrilov V., Elena Pizhankova I.
Format: Article in Journal/Newspaper
Language:English
Published: Russian Geographical Society 2018
Subjects:
coastal zone
coast retreat
degradation of submarine permafrost
coastal- marine sedimentation
formation of permafrost
stamukhas
Arctic
Ice
permafrost
Permafrost and Periglacial Processes
Polar Research
The Cryosphere
Online Access:https://ges.rgo.ru/jour/article/view/378
https://doi.org/10.24057/2071-9388-2018-11-1-20-37
Description
Summary:The study summarizes results on the cryogenic dynamics in the coastal zone. The paper shows that ongoing climate warming and shrinking of ice extent of the Arctic seas triggers both thermogenic and cryogenic processes at the same time. The first group includes thermal abrasion, thermal denudation, degradation of submarine permafrost, and the second one is the syncriogenesis of the new-formed coastal-marine sediments. The first group results in an increase of the retreat rate of coasts, the second results in the islands formation on banks and shallows where the domination of bottom thermal abrasion and deepening of the sea bottom has been taken place previously. Arguments for stamukhas and cryogenesis role in islands formation are presented.

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