1. Key Laboratory of Tibetan Environment Changes and Land Surface Processes; Institute of Tibetan Plateau Research, Chinese Academy of Sciences; Beijing 100101 China
2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering; Hohai University; Nanjing 210098 China
3. College of Water Resources and environment; Hohai University; Nanjing 210098 China
4. State Key Laboratory of Water Resources and Hydropower Engineering Science; Wuhan University; Wuhan 430072 China
5. Department of Geosciences; University of Oslo; Oslo 0316 Norway
6. Department of Geoscience; University of Nevada; Las Vegas 89154 NV USA
7. Faculty of Civil Engineering and Geosciences; Delft University of Technology; Delft 2600 The Netherlands