1. School of Information and Communication Engineering, Dalian University of Technology, Dalian, China
2. Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University, Beijing, China
3. CNRS, Université Rennes 2, LETG, UMR 6554, Rennes, France
4. State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing, China
5. Ant Group, Beijing, China
6. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
7. College of Forestry, Beijing Forestry University, Beijing, China
8. Ministry of Education Ecological Field Station for East Asian Migratory Birds, Beijing, China