Glacier changes since the early 1960s,eastern Pamir,China |
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| Authors: | Zhen Zhang Jun-li Xu Shi-yin Liu Wan-qin Guo Jun-feng Wei Tong Feng |
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| Institution: | 1.State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou,China;2.University of Chinese Academy of Sciences,Beijing,China |
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| Abstract: | Glaciers in the eastern Pamir are important for water resources and the social and economic development of the region. In the last 50 years, these glaciers have shrunk and lost ice mass due to climate change. In order to understand recent glacier dynamics in the region, a new inventory was compiled from Landsat TM/ETM+ images acquired in 2009, free of clouds and with minimal snow cover on the glacierized mountains. The first glacier inventory of the area was also updated by digitizing glacier outlines from topographical maps that had been modified and verified using aerial photographs. Total glacier area decreased by 10.8%±1.1%, mainly attributed to an increase in air temperature, although precipitation, glacier size and topographic features also combined to affect the general shrinkage of the glaciers. The 19.3-21.4 km3 estimated glacier mass loss has contributed to an increase in river runoff and water resources. |
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