1. State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Sciences; Lanzhou P.R. China
2. Key Laboratory of Inland River Ecohydrology, Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Sciences; Lanzhou P.R. China
3. University of Chinese Academy of Sciences; Beijing P.R. China
4. Institute of Earth Surface Dynamics, Faculty of Geosciences and Environment; University of Lausanne; Lausanne Switzerland
5. Department of Environmental Sciences; COMSATS Institute of Information Technology; Abbottabad Pakistan
6. Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Sciences; Lanzhou P.R. China