A Study on Local Circulation and Temperature in Alpine Glaciated Area
Kang Xingcheng (Lanzhou Institute of Glaciology and Geocryology, Academia Science)
Based on measuring data from Chongce ice cap area of West Kunlun Mountains, the daily variation of wind direction, wind speed and air temperature in the glacial and non-glacierized area as well as their variation of temperature on horizontal and vertical direction were revealed. The results show that the wind from the glacier region is prevailing and there are wind shear, convergence and divergence zones between the glacial and the non-glacierized area. The atmospheric-superadiabatic stable state occurred in the glacial region for all day, but in the non-glacierized area the atmospheric superadiabatic unstable state occurred in daytime, and a phenomen on of inverse temperature in nighttime. Therefore, the variation of temperature on horizontal direction occurred mainly in the front of the ice / snow region. So we suggest a specific phenome on "the glacier front" in the glacial area.