1. School of Geography Science and Geomatics Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
2. National Oceanography Center, 6 Brownlow Street, Liverpool L3 5DA, UK
3. Yulong Snow Mountain Cryosphere and Sustainable Development Field Scientific Observation and Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China