1. State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
2. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by Beijing Normal University and Aerospace Information Research Institute of Chinese Academy of Sciences, Faculty of Geographical Science, Beijing Normal University, Beijing, China
3. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, China
4. National Space Science Center, Chinese Academy of Sciences, Beijing, China