Calculation method of solar angle of winter solstice in Shanghai
Shanghai has a subtropical humid monsoon climate with four distinct seasons, abundant sunshine and rainfall. Shanghai has a mild and humid climate, short spring and autumn, warm winter and cool summer. 65438+ 10 is the coldest month with an average temperature of about 4℃, and it is usually the hottest in July with an average temperature of about 28℃.
Calculation formula of solar altitude angle at noon in Shanghai;
H = 90°- Latitude difference between two places (two places refer to the latitude difference between Shanghai and the direct point of the sun)
1 If the latitude difference between the two places is in two hemispheres, add it, and if it is in the same hemisphere, subtract a big block.
The latitude of Shanghai is roughly 3 1 north latitude.
In winter solstice, the tropic of Capricorn is 90-(3 1+23 26') = 35 34'
According to the above method, we know that the solar altitude angle of the winter solstice in Shanghai is 35 34'. You got it?