1. Key Laboratory of GIS Application Research, Chongqing Normal University, Chongqing, China
2. National Earth System Science Data Center, Beijing, China
3. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education; National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas; School of Civil Engineering, Chongqing University, Chongqing, China
4. East China Normal University, Shanghai, China