1 Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing 100101, China. Electronic address: wanglei@itpcas.ac.cn.
2 Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; Dedan Kimathi University of Technology, Nyeri 657-10100, Kenya.
3 Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China.
4 Information Center, Ministry of Water Resources, Beijing 100053, China.
5 Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.