Accumulation and Moisture Sources of the Glaciers in China

ZHANG Zhong-lin~(1, 2), HE Yuan-qing~1, PANG Hong-xi~1, LU Ai-gang~1, GU Juan~1(1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;2. College of Information and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou Gansu 730070, China)  

Using the data of Chinese Glacier Inventory and NCEP/NCAR, the vapor flux and the atmospheric circulations around China, distribution features of glaciers and precipitation patterns in China have been analyzed in this paper. There are various atmospheric circulations controlling the climate in China. Accordingly, the glacier distribution in different regions has been influenced by different climatic conditions. The westerly dominates mainly in Northwest China in the scope of 30°N and 100°E and carries vapors to the glaciers in this region. Southwest China, east to the Hengduan Mountains and north to 30°N, is mainly controlled by the southwest monsoon, which brings moisture to the glaciers there from Indian Ocean, Arabian Sea and the Bay of Bengal. Southeast China, west to the Hengduan Mountains, is influenced mainly by southeast monsoon, where the vapors to the glaciers, especially to those glaciers on the east slopes of the Hengduan Mountains, come from Pacific Ocean and the South China Sea. Both southwest monsoon and southeast monsoon dominate jointly in the Hengduan Mountains, the Nyainqêntanglha Range and the eastern Tibetan Plateau, where the moistures to the glaciers are mainly from the Bay of Bengal and South China Sea. There is a very good accordance between the variations of the accumulation rates and the local summer monsoon indices in various regions.

【Fund】： 中国科学院"百人计划"项目(人教字2002 43);; 国家自然科学基金重大项目(90302006);; 国家自然科学基金青年创新群体项目(40121101)资助
【CateGory Index】： P343.6

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