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Response of inland lake dynamics over the Tibetan Plateau to climate change |
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| Authors: | Yanbin Lei Kun Yang Bin Wang Yongwei Sheng Broxton W. Bird Guoqing Zhang Lide Tian |
| Affiliation: | 1. Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China 2. Building 3, Courtyard 16, Lincui Rd, Chaoyang District, Beijing, 100101, China 3. Department of Meteorology and International Pacific Research center, University of Hawaii at Manoa, Honolulu, HI, 96825, USA 4. Earth System Modeling Center, Nanjing International Academy of Meteorological Science, Nanjing University of Information Science and Technology, Nanjing, 210044, China 5. Department of Geography, University of California, Los Angeles, CA, 90095-1524, USA 6. Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, IN, 46202, USA |
| Abstract: | The water balance of inland lakes on the Tibetan Plateau (TP) involves complex hydrological processes; their dynamics over recent decades is a good indicator of changes in water cycle under rapid global warming. Based on satellite images and extensive field investigations, we demonstrate that a coherent lake growth on the TP interior (TPI) has occurred since the late 1990s in response to a significant global climate change. Closed lakes on the TPI varied heterogeneously during 1976–1999, but expanded coherently and significantly in both lake area and water depth during 1999–2010. Although the decreased potential evaporation and glacier mass loss may contribute to the lake growth since the late 1990s, the significant water surplus is mainly attributed to increased regional precipitation, which, in turn, may be related to changes in large-scale atmospheric circulation, including the intensified Northern Hemisphere summer monsoon (NHSM) circulation and the poleward shift of the Eastern Asian westerlies jet stream. |
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