气候变化领域集成服务门户(CCPortal): Permafrost degradation in the Western Russian Arctic

CCPortal

DOI	10.1088/1748-9326/ab6f12
	Permafrost degradation in the Western Russian Arctic
	Vasiliev A.A.; Drozdov D.S.; Gravis A.G.; Malkova G.V.; Nyland K.E.; Streletskiy D.A.
发表日期	2020
ISSN	17489318
卷号	15 期号:4
英文摘要	The Global Climate Observing System and Global Terrestrial Observing Network have identified permafrost as an 'Essential Climate Variable,' for which ground temperature and active layer dynamics are key variables. This work presents long-term climate, and permafrost monitoring data at seven sites representative of diverse climatic and environmental conditions in the western Russian Arctic. The region of interest is experiencing some of the highest rates of permafrost degradation globally. Since 1970, mean annual air temperatures and precipitation have increased at rates from 0.05 to 0.07 °C yr-1 and 1 to 3 mm yr-1 respectively. In response to changing climate, all seven sites examined show evidence of rapid permafrost degradation. Mean annual ground temperatures increases from 0.03 to 0.06 °C yr-1 at 10-12 m depth were observed in continuous permafrost zone. The permafrost table at all sites has lowered, up to 8 m in the discontinuous permafrost zone. Three stages of permafrost degradation are characterized for the western Russian Arctic based on the observations reported. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Climate change; Monitoring; Permafrost degradation; Western Russian arctic
语种	英语
scopus关键词	Image segmentation; Climate variables; Discontinuous permafrost; Environmental conditions; Global climate observing systems; Ground temperature; Mean annual air temperatures; Permafrost degradation; Region of interest; Permafrost; active layer; air temperature; high temperature; monitoring; permafrost; Arctic; Russian Federation
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154057
作者单位	Institute of the Earth's Cryosphere of Tyumen Scientific Center, Siberian Branch of Russian Academy of Sciences, Tyumen, 625000, Russian Federation; Tyumen State University, International Centre of Cryology and Cryosophy, Tyumen, 625003, Russian Federation; Department of Geography, George Washington University, Washington, DC 20052, United States
推荐引用方式 GB/T 7714	Vasiliev A.A.,Drozdov D.S.,Gravis A.G.,et al. Permafrost degradation in the Western Russian Arctic[J],2020,15(4).
APA	Vasiliev A.A.,Drozdov D.S.,Gravis A.G.,Malkova G.V.,Nyland K.E.,&Streletskiy D.A..(2020).Permafrost degradation in the Western Russian Arctic.Environmental Research Letters,15(4).
MLA	Vasiliev A.A.,et al."Permafrost degradation in the Western Russian Arctic".Environmental Research Letters 15.4(2020).