1 Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
2 College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
3 Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; cqsong@niglas.ac.cn.
4 Department of Geography and Geospatial Sciences, Kansas State University, Manhattan, KS 66506.
5 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China.
6 College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China.