Cold dew belongs to the first solar terms in autumn. What are the characteristics of the solar terms
cold dew is one of the twenty-four solar terms. During the cold dew, the autumn is getting stronger and stronger, and people have gradually added clothes. What solar terms does cold dew belong to in autumn? What are the characteristics of cold dew solar terms? Next, let's follow the old yellow calendar of this issue and have a look!
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on the auspicious day of 2020 belongs to the fifth solar term in autumn: the fifth cold dew belongs to the fifth solar term in autumn, and it is also the 17th of the 24 solar terms. The cold dew time is from October 8 to 9 of the Gregorian calendar every year, starting when the sun reaches 195 ° of the Yellow meridian. "The collection of the seventy-two seasons of the lunar calendar" says: "on September day, the dew is cold and will condense." cold dew means that the temperature is lower than that of White Dew, and the dew on the ground is colder and is about to condense into frost. In ancient China, the cold dew was divided into three periods: "first, the goose guests; second, the bird into the flood is the clam; third, the chrysanthemum has yellow flowers." it means that in this solar term, the goose moved south in a zigzag or herringbone queue; It was cold in late autumn, and the birds disappeared. The ancients saw a lot of clams suddenly appear on the beach, and the stripes and colors of the shells were very similar to those of birds, so they thought they were birds; At this time, chrysanthemums have been widely open. What is the solar term characteristic ofand
cold dew? Cold air frequently travels south. It is known from climatology that after the cold dew, the cold air in the North has a certain force. Most parts of China are under the control of cold high pressure, and the rainy season ends. The weather is usually warm in the day and cool at night. The sky is clear for thousands of miles. It is a scene of late autumn. In normal years, the isotherm of 10 ℃ at this time has moved south to the Qinling Huaihe River line, and generally dropped below 0 ℃ to the north of the Great Wall. In most years of the capital Beijing, early frost can be seen at this time. After entering the "cold dew", the invasion frequency and intensity of the cold air in the north will increase. A major feature of the "cold dew" solar term is that the temperature drops rapidly. After the autumn wind and rain brought by a strong cold air, it is common for the temperature to drop by 8 ℃ to 10 ℃.,
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the weather is sparse, thunderstorms almost disappear, and cold dew means the transition from cool to cold in the year. With the arrival of cold dew, most parts of China will turn cool. The northeast and northwest regions have entered or are about to enter winter, with less rain. In addition to the Qinghai Tibet Plateau, where snow flies all year round, snow has generally begun to fall in the northeast and Northern Xinjiang. Thunderstorms have disappeared in most parts of China's mainland, and thunder can be heard only in some areas of Yunnan, Sichuan and Guizhou. The precipitation in October in North China is generally only half or less of that in September, while that in Northwest China is only a few millimeters to more than 20 millimeters. Drought and little rain often bring difficulties to timely sowing of winter wheat, which has become one of the main limiting factors for high yield of dryland wheat.
the temperature drops faster and drier, which is a characteristic of cold dew solar terms. After the autumn wind and rain brought by a strong cold air, it is common for the temperature to drop by 8 ℃ and 10 ℃. However, most of the stormy weather does not last long (except in West China). Under the control of cold and high pressure, it is warm in the day and cool at night. During the day, it is often clear and crisp in autumn. The weather has also become drier. It is understood that cold dew is a festival in late autumn. The word "cold" first appeared in the 24 solar terms. At this time, the wild geese fly south and the chrysanthemums turn yellow. Compared with the "White Dew" a month ago, the temperature is lower, there is more dew and a chill.,
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on the auspicious day of travel in 2020 varies greatly. In October, the regional difference of average temperature distribution in China is obvious. In South China, the average temperature is above 22 ℃ in most areas, higher in Hainan, above 25 ℃, and has not gone out of summer; Jianghuai and Jiangnan are generally between 15 ℃ - 20 ℃, and the south of Northeast China, North China and Huanghuai are between 8 ℃ and 16 ℃. At this time, the average temperature in some parts of Northwest China and the middle and north of Northeast China has reached below 8 ℃. The average temperature in some plateau areas of Qinghai Province is even below 0 ℃.https://www.dailyq-a.com/Culture/28749.html
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