1. a State Key Laboratory of Remote Sensing Science , Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University , Beijing, 100101, China
2. b The Center for National Spaceborne Demonstration , Beijing, 100101, China
3. c National Marine Environmental Monitoring Center , Dalian, 116023, China
4. d Department of RS and GIS , Northeast Institute of Geography and Agroecology, Chinese Academy of Science , Changchun, 130012, China