1. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, China
2. Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou, People’s Republic of China
3. School of Resources and Environment, University of Electric Science and Technology of China, Chengdu, People’s Republic of China
4. The Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources, Shenzhen, People’s Republic of China