乌鲁木齐河源1号冰川东西支变化特征研究

Research on characteristics variation of east and west branchs of Glacier No.1 at the headwaters of Urumqi River

利用乌鲁木齐河源区气温、降水资料以及1号冰川变化数据,分析了1号冰川东支和西支冰川变化特征的异同,并运用物质和能量平衡理论对1号冰川加速消融和特征变化进行解释。研究表明:1号冰川东支和西支冰川变化特征的差异是由各自冰川形态、海拔、地形、面积规模等不同所导致的,而气温升高和太阳短波辐射吸收率增加是1号冰川加速消融和特征变化的两个重要原因。

We analyzed in the research the similarities and differences of characteristics variation about east and west branch of the Glacier No. 1 based on temperature, precipitation and variable data. In addition, the interpre tation for acceleration of melting and characteristics variation of the Glacier No. 1 was given based on the material and energy balance theory. The research indicated that the differences between the two branches were due to the reasons such as glacier respective characteristics, elevation, terrain and the area, Two important factors were led to accelerated melting and characteristics variation of Glacier No. 1, which were the temperature rising and the absorb rate of solar radiation increasing.