Sate Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, GA 730000 China
Sate Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, GA 730000 China
University of Colorado at Boulder, National Snow and Ice Data Center/CIRES, 449 UCB, Boulder, CO 80309-0449 United States