1. Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2. The Key Laboratory of Earth Observation of Hainan Province, Hainan Aerospace Information Research Institute, Sanya 572000, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
5. Space Information and Big Earth Data Research Center, College of Computer Science and Technology, Qingdao University, Qingdao 266071, China