In view of the tendency of global climatic warming, the water balance model is employed to estimate the runoff changes in the Urumqi River Basin, Xinjiang Region, China, under ten climate change scenarios, which are c...In view of the tendency of global climatic warming, the water balance model is employed to estimate the runoff changes in the Urumqi River Basin, Xinjiang Region, China, under ten climate change scenarios, which are combinations of temperature increases by 2K and 4K with precipitation change of 0, ±10% and ±20%, respectively, as the atmospheric concentration of carbon dioxide increases. The results suggest that runoff changes mainly depend on the precipitation change in the glacier-free or less glacierized basins in cold alpine regions. Effect of temperature on runoff becomes marked gradually with the increase in precipitation. Runoff from glacierized areas, however, is much more sensitive to the temperature change.展开更多
Classification of glaciers is of guide significance for glaciological researches. In 1964, the glaciers in China were firstly classified into continental and maritime types, of which the former was reclassified into u...Classification of glaciers is of guide significance for glaciological researches. In 1964, the glaciers in China were firstly classified into continental and maritime types, of which the former was reclassified into ultra-continental and sub-continental types by Shi and Xie. In 1986, Li Jijun et al. classified the glaciers in Xizang (Tibet) into continental glaciers and maritime glaciers according to 18 classification features in the professional works entitled 'The Glaciers in Xizang'. Aiming at advancing the classification of glaciers to a quantitative stage, we try using fuzzy cluster analysis on the climatic conditions under which the glaciers in the territory of China exist and on their fundamental physical indexes.展开更多
基金Part of the project supported by the National Natural Science Foundation of China, No. 9488007.
文摘In view of the tendency of global climatic warming, the water balance model is employed to estimate the runoff changes in the Urumqi River Basin, Xinjiang Region, China, under ten climate change scenarios, which are combinations of temperature increases by 2K and 4K with precipitation change of 0, ±10% and ±20%, respectively, as the atmospheric concentration of carbon dioxide increases. The results suggest that runoff changes mainly depend on the precipitation change in the glacier-free or less glacierized basins in cold alpine regions. Effect of temperature on runoff becomes marked gradually with the increase in precipitation. Runoff from glacierized areas, however, is much more sensitive to the temperature change.
文摘Classification of glaciers is of guide significance for glaciological researches. In 1964, the glaciers in China were firstly classified into continental and maritime types, of which the former was reclassified into ultra-continental and sub-continental types by Shi and Xie. In 1986, Li Jijun et al. classified the glaciers in Xizang (Tibet) into continental glaciers and maritime glaciers according to 18 classification features in the professional works entitled 'The Glaciers in Xizang'. Aiming at advancing the classification of glaciers to a quantitative stage, we try using fuzzy cluster analysis on the climatic conditions under which the glaciers in the territory of China exist and on their fundamental physical indexes.
