Traditional Culture Encyclopedia - Weather inquiry - Which solar term is the coldest in winter?
Which solar term is the coldest in winter?
The Great Cold is the last of the 24 solar terms. Every year around 65438+10.20, when the sun reaches 300, it is a severe cold. At this time, the cold wave frequently goes south, which is the coldest period of the year in most parts of China. The wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold scene of ice and snow. During this period, railway, post and telecommunications, petroleum, shipping and other departments should pay special attention to take measures to prevent severe weather such as strong winds and blizzards as soon as possible. Agriculture should strengthen the cold and antifreeze of livestock and wintering crops.
There is a folk proverb that cold is mild and cold is ice. In most parts of China, slight cold is the lowest solar term in a year, and only a few years have the temperature of great cold lower than slight cold.
Extended data:
As soon as the great cold is over, a new cycle begins, which means that winter goes and spring comes. In some places in the south of China, especially in rural areas, there are many important folk customs from the Great Cold to beginning of spring, such as rich food, offering sacrifices to stoves and New Year's Eve.
Because after the winter solstice, the direct sunlight will gradually move northward, but in the following period of time, the direct sunlight will always be in the southern hemisphere, and the heat in the northern hemisphere will always be lost, and the heat absorbed during the day is still less than the heat released at night. Therefore, after the winter solstice, the temperature in the northern hemisphere continues to decrease, reaching the lowest point in the severe cold solar terms, and the severe cold becomes the coldest solar term in a year. Due to the vast territory of China, the climate between the north and the south is quite different. According to China's long-term meteorological records, there is no slight cold in the great cold solar terms in the northern region; But for most parts of the south, the big cold solar terms are colder than the small cold solar terms.
Baidu encyclopedia-great cold
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