基于室内模拟实验,对遥感像元尺度地表热辐射方向性模型进行验证。当考虑地表像元具有明显的三维结构且像元内温度非均一时,像元辐射亮温的方向性取决于像元结构和像元组分的温差,对三维非同温表面的室内模拟和观测实验验证了基于这一思路建立的表面热辐射方向性模型。

Based on the experiment of Indoor simulation in the laboratory, this paper applied the thenmal radiationdirectionality model to verify its effectiveness on pixel scale. When the corresponding ground surface is primarilycomposed of three dimensional structure and is of heterogeneous temperature in a pixel, the observing data and analysisshow that the directionality of radiant temperature of one pixel is due to the geometrical construction and thetemperature difference between the sub-components in the pixel. In the indoor simulation experiment of threedimensional heterogeneous surface, it proved that the thermal radiation directionality model worked well in temperatureinve川ng on pixel scale.