Based on the analysis of the solar altitude angles in kunming a calculation model of the solar altitude angles is built 摘要在对昆明的太阳高度角进行了详细分析的基础上，得出了计算昆明太阳高度角公式。
2.
The result confirmed the landform have the decisive influence on the solar astronomical radiation distribution . except that the solar altitude angle also have much to do with that 结果表明：天文辐射的空间分布状况受地形影响极大，地形对天文辐射的再分配起着决定性的作用。
