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Lake variations in response to climate change in the Tibetan Plateau in the past 40 years

响应气候的湖变化在过去的 40 年里在西藏的高原变化

作     者:Jingjuan Liao Guozhuang Shen Yingkui Li 

作者机构:Center for Earth Observation and Digital EarthChinese Academy of SciencesBeijingChina Department of GeographyUniversity of TennesseeKnoxvilleUSA 

出 版 物:《International Journal of Digital Earth》 (国际数字地球学报(英文))

年 卷 期:2013年第6卷第6期

页      面:534-549页

核心收录:

学科分类:07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基  金:This research is supported by the National Basic Research Program of China(973 Program Grant No.2009CB723906) 

主  题:lake variation climate change Qinghai-Tibetan Plateau 

摘      要:The Qinghai-Tibetan Plateau plays an important role in global climate and environmental change and holds the largest lake area in China,with a total surface area of 36,900 km^(2).The expansion and shrinkage of these lakes are critical to the water cycle and ecological and environmental systems across the *** this paper,surface areas of major lakes within the plateau were extracted based on a topographic map from 1970,and Landsat MSS,TM and ETM+satellite images from the 1970s to ***,a multivariate correlation analysis was conducted to examine the relationship between the changes in lake surface areas and the changes in climatic variables including temperature,precipitation,evaporation,and sunshine *** results suggest that the variations in lake surface areas within the plateau are closely related to the warming,humidified climate transition in recent years such as the rise of air temperature and the increase in *** particular,the rising temperature accelerates melting of glaciers and perennial snow cover and triggers permafrost degradation,and leads to the expansion of most lakes across the *** addition,different distributions and types of permafrost may cause different lake variations in the southern Tibetan Plateau.

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