1. College of Civil Science and Engineering Yangzhou University Yangzhou China
2. Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China
3. Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information Systems Guangdong Open Laboratory of Geospatial Information Technology and Application Guangzhou Institute of Geography Guangzhou China
4. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) Guangzhou China
5. Chongqing Key Laboratory of GIS Application Chongqing Normal University Chongqing China