1. State
Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
2. Service Center for China Meteorological Administration, Beijing 100081, China
3. Department
of Civil and Geological Engineering, University of Saskatchewan, 57 Campus
Drive, Saskatoon, Saskatchewan S7N 5A9, Canada
4. National Satellite Meteorological Center, Beijing 100081, China