1. Institute of Remote Sensing and GIS, School of Earth and Space Sciences, Peking University, Beijing, China
2. Aerospace Information Research Institute and the State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing, China
3. College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing, China
4. School of Hydraulic and Ecological Engineering, Nanchang Institute of Technology, Nanchang, China
5. Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Xianyang, China