1. Key Laboratory of Remote Sensing of Gansu Province, Heihe Remote Sensing Experimental Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, People’s Republic of China
2. State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, People’s Republic of China
3. University of Chinese Academy of Sciences (UCAS), Beijing, People’s Republic of China
4. College of Geography and Environmental Science, Northwest Normal University, Lanzhou, People’s Republic of China
5. State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, People’s Republic of China
6. Gansu Forestry Polytechnic, Tianshui, People’s Republic of China