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Response of Glacier and Lake Covariations to Climate Change in Mapam Yumco Basin on Tibetan Plateau during 1974–2003 |
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| Authors: | Ye Qinghua Yao Tandong Chen Feng Kang Shichang Zhang Xueqin Wang Yi |
| Institution: | 1. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101,China 2. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Applications of Chinese Academy of Cryosphere and Environment,Chinese Academy of Sciences, Beijing 100101, China 3. Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China 4. National Marine Environment Forecast Center,Beijing 100081,China |
| Abstract: | The study of spatial and temporal covariances of glaciers and lakes would help us to understand the impact of climate change within a basin in Tibet. This study focuses on glacier and lake variations in the Mapam Yumco(玛旁雍错)Basin (covering 7 786.44 km2)by Integrationg series of spatial data from topographic maps and digital satellite images at four different times: 1974, 1990, 1999,and 2003. The results indicate that: (1) decreased lakes, retreated glaciers, enlarged lakes and advanced glaciers co-exist in the basin during the last 30 years; (2) glacier recession was accelerated in recent years due to the warmer climate; (3) lake areas in the basin are both reduced and enlarged by an accelerated speed with more water supplies from speeding melt glaciers or frozen ground in the last three decades. |
| Keywords: | alpine glacier inland lake spatial temporal variation GIS RS Mapam Yumco basin Tibetan plateau Mt Himalayas |
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