1 Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Department of Earth System Science, Tsinghua University, Beijing 100084, China.
2 Key Laboratory of Computational Optical Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China.
5 School of Artificial Intelligence, OPtics and ElectroNics (iOPEN), Northwestern Polytechnical University, Xi'an 710072, China.
6 Department of Geography and Department of Earth Sciences, University of Hong Kong, Hong Kong, China.
7 Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Department of Earth System Science, Tsinghua University, Beijing 100084, China. Electronic address: hxm@tsinghua.edu.cn.