State Key Laboratory of Cryosphere Sciences Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou 730000 China;
State Key Laboratory of Cryosphere Sciences Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou 730000 China;
Centre for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of Sciences Beijing 100101 China;
State Key Laboratory of Cryosphere Sciences Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou 730000 China;
State Key Laboratory of Cryosphere Sciences Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou 730000 China;
Gansu Construction Vocational Technology College Lanzhou 730000 China;