Traditional Culture Encyclopedia - The 24 Solar Terms - What do you mean the Millennium is good and the wind is good?
What do you mean the Millennium is good and the wind is good?
Millennium is the 15 solar term in 24 solar terms, and the third solar term in autumn is the end of the application of the moon in the dry calendar and the beginning of the unitary month. Fighting fingers; The sun reaches longitude 165 degrees; Gregorian calendar September 7-9. Millennium is an important solar term, reflecting the cold growth of nature. As the cold air turns to attack, it is sunny and hot during the day, but the temperature drops rapidly after the evening, and the temperature difference between day and night gradually widens.
During the white dew, the summer monsoon is gradually replaced by the winter monsoon, and the cold air changes from defense to attack. In addition, when the direct point of the sun moves south, the sunshine time in the northern hemisphere becomes shorter, the light intensity weakens, and the ground radiation dissipates heat quickly, so the cooling speed gradually accelerates. The Millennium basically ended the sweltering heat in summer, and the weather gradually turned cold, and the cold gave birth to dew condensation.
The ancients used four seasons with five elements, autumn was gold, gold and white, and white was used to describe autumn dew, hence the name Bailu. According to the standard of "average climate temperature" put forward by modern scholar Zhang Baokun, the average climate temperature is 10-22℃ in spring or autumn. According to this standard, from the beginning of the Millennium solar term, all localities began to enter autumn one after another. As the saying goes, the Millennium reveals itself. It is said that the weather is bad enough to give clothes and ears.
It is intended to remind people that it is still hot during the day and it is already cold in the morning and evening. If you go shirtless, you will catch a cold easily. In addition, we should prevent autumn dryness at this time. During the Bailuyuan period, local folk customs mainly included offering sacrifices to Dayu, brewing grain wine and drinking Bailuyuan tea.
Meteorological change
After entering the Millennium solar terms, the summer monsoon is gradually replaced by the winter monsoon, and the cold air gradually moves southward frequently. In addition, the position where the sun directly touches the ground moves south, and the sunshine time in the northern hemisphere becomes shorter and the sunshine intensity weakens. At night, it is often partly cloudy and sunny, and the ground radiation dissipates quickly, so the temperature drop is gradually accelerated. There is a saying called "Qiu Qiu in a thousand years, it is cold all night." ?
After the Millennium, the temperature difference between day and night gradually widened. Although the temperature is high at noon during the day, it is already very cold in the morning and at night. According to the standard of "average weather temperature" proposed by modern scholar Zhang Baokun, the average weather temperature is 10-22℃ in spring or autumn. According to this standard, from the beginning of the Millennium solar term, all localities began to enter autumn one after another.
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