1. Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai, China;
2. School of Civil Architectural Engineering, Shandong University of Technology, Zibo, Shandong, China;
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China;
4. Key Laboratory for National Geographic Census and Monitoring, National Administration of Surveying, Mapping and Geoinformation, Wuhan, China;
5. Hubei Key Laboratory of Regional Development and Environmental Response (Hubei University), Wuhan, China;
6. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research of Chinese Academy of Sciences, Beijing, China