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太阳高度及其运用 PowerPoint PPT Presentation


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太阳高度及其运用. 四川省攀枝花市第十二中学校. 唐 祖 明. 一、太阳高度分布规律及等太阳高度线图. 1 、太阳高度分布规律 : 由直射点向四周递减. 2 、等太阳高度线图的判读 :. ( 1 )、 太阳高度为 0° 的等太阳高度线为晨昏线. 一般图中最大的圆圈为晨昏线,且太阳直射经线以东最大半圆为昏线,以西最大半圆为晨线 . ( 2 )、图中的中心点为太阳直射点. 通过该点的经线地方时为 12 点. 通过该点的纬线即为此日太阳直射的纬线 , 其正午太阳高度角为 90 °. 二、太阳高度分布规律及等太阳高度线图. ( 3 )、经纬度大小的判读.

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太阳高度及其运用

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