自然地表红外辐射统计特性的理论模拟

The theoretical modeling of IR radiance statistics of the natural terrain

建立了自然地表红外辐射统计理论模型，分析了随机变量空间起伏和环境条件对地表红外辐射统计特性的影响，强调了地表红外辐射统计分布的日变化特征，给出了在相同环境下，湿润与干燥地表统计特性的对比分析．

A theoretical model for IR radiance statistics of the natural terrain has been developed, in which all the heat and water flux exchanges between terrain and atmosphere are under consideration. The influence of the field fluctuation in shortwave sorptivity and wind speed on the statistics distribution of radiance is discribed, with special emphasis on the daily variation of the radiance statistics. Also, a comparison of a wet terrain with a dry terrain in statistics is made.