Climate change impact on high-altitude geomorphological systems

International Conference and Early Career Scientists School on Environmental Observations, Modeling and Information Systems: ENVIROMIS-2018

生态环境科学;计算机科学

Borodavko, Pavel S^1 ; Volkova, Elena S^1 ; Mel'Nik, Mariya A^1 ; Litvinov, Alexey S^1 ; Demberel, Otgonbayar^2

Laboratory of Self-organizing Geosystems, Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the RAS, Tomsk

634055, Russia^1

Khovd State University, Khovd, Mongolia^2

关键词: Active Layer;    Air temperature;    Climate change impact;    Global climate changes;    High mountains;    Little Ice Age;    Regional levels;    Seasonal temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/211/1/012004/pdf
DOI  :  10.1088/1755-1315/211/1/012004

来源: IOP

【 摘 要 】

Some of the most important consequences of global climate change are the rising mean annual or seasonal temperature and the rising or diminishing precipitation at the regional level. An analysis of midterm meteodata shows that the average annual air temperature in Western Mongolia has increased by 2.08 °C from 1940 to 2017. The impact of these changes is observed in the high-mountain basins of Mongolian Altai. Thus, the sum area of deglaciated areas of Sutai and Tsambagarav glaciers has increased by 37.5 sq. km since the time of the Little Ice Age maximum. Field data and geothermal observations during the last 25 yr indicate an increase in permafrost temperatures, and the average active-layer thickness has increased by 24% in comparison to the early 1990s.