青藏高原北部及其邻近地区太阳加热率和大气红外冷却率

利用中分辨率辐射计算模式(MODTRAN3)和青藏高原北部及其邻近地区格尔木、哈密、酒泉三站的探空资料，对各站点夏季太阳直接辐射、向下总辐射和净辐射进行了计算，并进一步计算了大气的太阳加热率和红外冷却率。分析了青藏高原北部及其邻近地区的加热率和冷却率的一些特点。结果表明，青藏高原北部及其邻近地区加热率在llkm高度附近有最小值，夏季红外冷却率在llkm高度附近取得最大值，太阳天顶角的变化对太阳加热率有较强的影响。

Solar Heating Rate and Infrared Cooling Rate in Northern Tibetan Plateau and Its Neighborhood

Based on the sonde data observed at 3 meteorological stations(Geermu,Hami,Jiuquan)in the Northern Tibetan Plateau and its neighborhood in summer 1994,the direct solar radiation flux,total downward radiation flux and net radiation flux are computed by using MODTRAN3. With the help of the results,the solar heating rate and the infrared cooling rate were investigated,and some features of them were analyzed.The results show that the heating rate is the minimum near 11km height and the infraed cooling rate is the maximum in the Northern Tibetan Plateau and its neighborhood in summer 1994.To some extent,the solar heating rate is decided by zenith angle.