Huichun Ye, Wenjiang Huang, Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, China; Shanyu Huang, Chinese Academy of Agricultural Engineering Planning & Design, China; Weiping Kong, Key Laboratory of Quantitative Remote Sensing Information Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, China; Yu Ren, Bin Wu, Yingying Dong, Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, China