Traditional Culture Encyclopedia - The 24 Solar Terms - Is the sun higher in summer or in winter?
Is the sun higher in summer or in winter?
The sun is between the tropic of cancer and the equator in the northern hemisphere in summer and between the tropic of cancer and the equator in winter. Relatively speaking, the sun is closer to the ground in summer.
China is a vast country with a long distance between the north and the south. Geographically, it is lower in the south and higher in the north, with a difference of more than 30 degrees. In the northern hemisphere, the sun shines directly into the southern hemisphere in winter, which leads to stronger or longer solar radiation intensity and sunshine duration and higher temperature in the south than in the north. This is due to the latitude position. Different latitude positions lead to different solar radiation.
Extended data:
In winter, the light and heat energy of the sun will enter the least season of the year. Because there is not enough light and heat energy in the northern hemisphere, the air in high latitudes will be cooled down and accumulated, and the last cold wave will go south.
After winter, a relatively stable winter circulation has basically formed in East Asia. The subtropical high has retreated to the south of 20 degrees north latitude in the Pacific Ocean, and the westerly belt has been pressed to 35 degrees north latitude. The westerly belt will be divided into north westerly wind and south westerly wind in Pamirs, and the north westerly wind will send the water vapor from the Mediterranean Sea and the North Sea to Tianshan Mountains to form snowfall.
The south branch westerly wind forms a south branch trough on the south side of the Qinghai-Tibet Plateau and turns to the Bay of Bengal to transport the water vapor from the Bay of Bengal to the central and eastern regions of China. When the cold air in the north branch trough meets the warm and humid air in the south branch trough, it will form low-temperature rain and snow weather.
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