IngentaConnect Response of snow cover to climate change in the periphery mountai...

Authors: Yaning, Chen; Changchun, Xu; Yapeng, Chen; Zhongqin, Li; Zhonghe, Pang

Source: Annals of Glaciology, Volume 49, Number 1, October 2008 , pp. 166-172(7)

Publisher: International Glaciological Society

Abstract:

Data of annual mean temperature, annual total precipitation and snow-cover area (SCA) in the winter season from 1982 to 2001 have been analyzed to examine the response of SCA to climate change in the Tarim basin, western China. The results show that over the entire basin SCA exhibits a slowly decreasing trend. The responses of SCA to temperature and precipitation in the northern, western and southern parts of the basin show a stronger effect of precipitation change on SCA than that of temperature. SCA has slowly increased below 2500 m a.s.l., but has decreased at higher altitudes. The lowest-altitude zone was apt to be affected by precipitation, while the highest-altitude zone seems to have been influenced mainly by temperature. The middle zone from 2500 to 5000 m was the most sensitive to climate change. Snowfall and melt rates were higher in the 1990s than in the 1980s. In the winter season, SCA change was positively correlated with precipitation change but not with temperature change.

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Response of snow cover to climate change in the periphery mountains of Tarim river basin, China, over the past four decades