gesjGEOGRAPHY, ENVIRONMENT, SUSTAINABILITYGEOGRAPHY, ENVIRONMENT, SUSTAINABILITY2071-93882542-1565Russian Geographical Society10.24057/2071-9388-2018-11-1-20-37gesj-378Research ArticleGEOGRAPHYГеографияDYNAMICS OF PERMAFROST IN THE COASTAL ZONE OF EASTERN-ASIAN SECTOR OF THE ARCTICGavrilovAnatoly V.

D.Sc. in Geological - Mineralogical Sciences, Leading Researcher at the Laboratory of the geological environment and the relationship of surface and underground waters of the Faculty of Geology

PizhankovaElena I.

Ph.D. in Geological-Mineralogical Sciences, Senior Researcher at the Laboratory of the geological environment and the relationship of surface and underground waters of the Faculty of Geology

pijankova@yandex.ruLomonosov Moscow State UniversityRussian Federation2018300320181112037Copyright © Gavrilov A.V., Pizhankova E.I., 20182018Gavrilov A.V., Pizhankova E.I.Gavrilov A.V., Pizhankova E.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ges.rgo.ru/jour/article/view/378

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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The authors declare that there are no conflicts of interest present.