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一、讲清太阳高度的概念和分布 1.太阳高度(H)是太阳光线对于地平面的交角,实践中通过观察太阳在当地的仰角测定。从概念中我们知道H≤90。当H=90时为直射。
First, explain the concept and distribution of the height of the sun 1. The height of the sun (H) is the intersection angle of the sun’s rays with respect to the ground plane. In practice, it is determined by observing the sun’s elevation angle in the local area. From the concept we know that H ≤ 90. It is direct when H=90.