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《Journal of Glaciology and Geocryology》 1991-01
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Preliminary Results from China-Japan Glaciological Expedition in Tibet Plateau, 1989

Yao Tandong , Y. Ageta , T. Ohata , Jiao Keqin Shao Wehzhang , Ding Liangfu and Pu Jianchen ( Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences; Water Research Institute, Nagoya University, Japan)  
The Joint China-Japan Glaciological Expedition in Tibet Plateau, 1989, was made from April to October, 1989. Shallow ice cores, glacial fluctuations, glacial mass balance, meteorology and hydrology were carried out during the expedition. It was found based on shallow ice core record and meteorological data from the expedition that there was an evident climatic warming trend in the Tibet Plateau. The climatic warming trend in the Tibet Plateau resulted in the intense glacial retreating in the Southeast Tibet. Has also resulted in obvious decrease in glacial velocity based on the reconstruction of glacial ogive. The glacial fluctuation trend in the East Kunlun and the Tanggula area is different from that in the Southeast Tibet. Many glaciers observed in the East Kunlun and Tanggula show evidences of glacial advance. Another important founding during this expedition is that there exists "puffin type" glacier in the East Kunlun located in the inland Tibet. δ18O analyses of snow samples from each precipitation process indicate that there is a big difference in δ18O between the maritime air mass and the continental air mass. It is also concluded that the origin of precipitation air mass can be distinguished by using δ18O.
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