1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, People’s Republic of China
2. Collaborative Innovation Center of Geospatial Technology, Wuhan University, Wuhan, People’s Republic of China
3. Geocomputation Center for Social Sciences, Wuhan University, Wuhan, People’s Republic of China
4. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
5. Department of Geographical Sciences, University of Maryland, College Park, MD, USA
6. School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan, People’s Republic of China