1. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People’s Republic of China
2. University of Chinese Academy of Sciences, Beijing, People’s Republic of China
3. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, People’s Republic of China
4. China-Pakistan Earth Science Research Center, Islamabad, Pakistan
5. School of Geography Science and Geomatics Engineering, Suzhou University of Science and Technology, Suzhou, People’s Republic of China