Fluctuations of the Glaciers on the Qinghai-Tibetan Plateau during the Past Century
PU Jian-chen~(1, 2),YAO Tan-dong~(1, 2),WANG Ning-lian~(1, 2),SU Zhen~(3) ,SHEN Yong-ping~(3) u Gansu 730000, China; 2. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100029, China; 3. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China)
In the past 100 years, glaciers on the Qinghai-Tibetan Plateau (QTP) have been general retreating continuously, although the retreat rate was twice depressed, and the glaciers were relatively positive mass balance or advanced a little. Glacier retreat rates have increased rapidly under the fluctuant global warming since the 1980s. The magnitude of the glacial retreat is the largest at the south and east margins of the QTP. Larger retreat occurs at the north of the QTP, and the least retreat occurs in the central of the QTP and the Qangtang Region. The glacial response to climatic change is more sensitivity at the margins of Qinghai-Tibetan Plateau than those inlands of Qinghai-Tibetan Plateau.