The role of snow cover on the Arctic sea coast ground thermal regime variability near Varandey (Pechora Sea)тезисы доклада

Работа с тезисами доклада


[1] The role of snow cover on the arctic sea coast ground thermal regime variability near varandey (pechora sea) / O. Kokin, D. M. Frolov, A. Sinitsyn, A. Kirillova // Тезисы докладов всероссийской конференции Междисциплинарные научные исследования в целях освоения горных и арктических территорий : г. Сочи 24–29 сентября 2018 года. — Vol. 1. — Институт географии Российской академии наук, Гляциологическая ассоциация Москва, 2018. — P. 95–95. The Arctic sea coasts placed in the transition zone between continental and marine permafrost. Due to the relatively warm sea waters a high gradient of the ground thermal field can be observed during the movement in the direction from a land to a sea. A snowpack formation along a coastal bluff gives the additional warming effect during a winter. So it can be partly responsible for the coastal erosion rates increasing. The year-round ground temperatures measurements were carried out by thermo strings with data-loggers installed in five boreholes at the coast of Pesyakov Island near Varandey settlement (coastal area of Pechora Sea) in the period from August 2012 to August 2014. The boreholes with a depth from 3,5 to 7 m are situated at different geomorphic positions (foot of coastal bluff, top of dune belt, sand terrace, laida) along transverse profile. The measurements have intervals from 3 to 12 hours in time and from 0,25 to 1 m in depth. Variations of ground near surface temperatures during winters of 2012-2013 and 2013-2014 have been analyzed. Geomorphic position determines differences in snow cover distribution while the air temperature remains common for all boreholes. It makes possible evaluation of snow cover warming effect at different geomorphic positions. The work was supported by the Russian Science Foundation (project №17-77-10140).

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