1. Director, National Field Science Observation and Research Station of Yulong Snow Mountain Cryosphere and Sustainable Development/State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Professor, College of Resources and Environment, Univ. of Chinese Academy of Sciences, Beijing 100049, China.
2. Associate Professor, Chinese Antarctic Center of Surveying and Mapping, Wuhan Univ., Wuhan 430079, China (corresponding author).
3. Guest Researcher, National Field Science Observation and Research Station of Yulong Snow Mountain Cryosphere and Sustainable Development/State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Associate Professor, Dept. of Geography Science, Yichun Univ., Yichun 336000, China.