1. College of Surveying and Geo‐Informatics North China University of Water Resources and Electric Power Zhengzhou China
2. College of Geology and Environment Xi'an University of Science and Technology Xi'an China
3. Key Laboratory of Digital Earth Science Aerospace Information Research Institute Chinese Academy of Sciences Beijing China
4. State Key Laboratory of Remote Sensing Science Aerospace Information Research Institute Chinese Academy of Sciences Beijing China
5. Department of Earth and Planetary Sciences School of Engineering and Applied Sciences Harvard University Cambridge MA USA
6. State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China