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Which solar term is Bailu? Is the weather getting cold

DailyBird Culture 2021-10-09 1 0

Bailu belongs to the solar term of autumn and one of the 24 solar terms. In autumn, the weather gradually changes from hot to cool. What solar term is Bailu? Is it getting cold in Bailu? Next, let's follow the old yellow calendar of this issue and have a look!

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Bailu is the first solar term: 15 solar terms Bailu is the 15th of the 24 solar terms in the lunar calendar. In the collection of 72 seasons of the lunar calendar, "August Festival... Yin is getting heavier and dew is condensing and white." the weather is getting cooler, In the early morning, you will find many dew drops on the ground and leaves. This is because the water vapor condenses on it at night, so it is called Bailu. The ancients used four seasons with five elements. Autumn is golden, golden and white, so they used white to describe autumn dew. Entering the "White Dew", you will feel a trace of coolness at night.

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, has the weather cooled down in Bailu? After Bailu, it has entered autumn in most parts of China, and the weather began to cool slowly. Although there are "autumn tigers" in some areas, it is very cool in the morning and evening. However, it is not suitable to wear thick clothes at this time, because in health preservation, it is necessary to wear thick clothes in autumn "Autumn freeze" White Dew is the third solar term of autumn, which means the end of mengqiu season and the beginning of mid autumn season. Dew is the water drop formed by the condensation of water vapor on the ground or near earth objects due to the decrease of temperature. Therefore, White Dew actually indicates that the weather has turned cool. At this time, people will obviously feel that the hot summer has passed and the cool autumn has come As the saying goes, "the white dew falls every night, and the night is cold." In the White Dew season, the summer monsoon is gradually replaced by the winter monsoon, with more northerly winds and more cold air moving southward. In addition, the position where the sun shines directly on the ground moves southward, the sunshine time in the northern hemisphere becomes shorter, the sunshine intensity decreases, the night is often sunny and less cloudy, and the ground radiation and heat dissipation is fast, so the temperature decline speed is also gradually accelerated. It can also be seen that "White Dew"

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The climate characteristics of Bailu weather have a large cooling range: after the plants begin to have dew and enter the Bailu solar term, the summer wind is gradually replaced by the winter wind, the cold air turns defensive into attack, and the warm air gradually retreats. The cold air goes south in batches, often bringing a certain range of cooling range. People like to use "Bailu autumn wind night, cool night" As a proverb to describe the acceleration of temperature decline. The cold and warm air are equal: at this time, the precipitation in northern China is significantly reduced, and the autumn is clear and dry. In the middle and lower reaches of the Yangtze River during this period, the first autumn rain can often alleviate the water shortage in the early stage, but if the cold air meets the typhoon or the cold and warm air is equal, the two sides will compete in advance and retreat In difficult times, heavy rain or low temperature and continuous cloudy rain are unfavorable to crop growth in autumn.

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