A brief introduction to beginning of winter and beginning of winter.

1, beginning of winter, is the 19th of the 24 solar terms. Bucket handle points to the northwest, and the longitude of the sun reaches 225. Every year, the solar calendar165438+1October 7-8. Beginning of winter is a seasonal solar term, which means that it has entered winter since then. Stand still, build the beginning; In winter, everything will be collected in the end. Beginning of winter means that anger begins to close and everything enters a state of recuperation. Its climate has gradually changed from dry autumn to rainy and cold winter.

2. After beginning of winter, the sunshine time will continue to shorten, and the noon sun height will continue to decrease. Because there is still some energy in the heat stored on the surface, it is generally not very cold in early winter; As time goes by, cold air activities become more and more frequent, and the downward trend of temperature accelerates.

Beginning of winter is the first solar term in winter, which represents the beginning of winter. Beginning of winter is also one of the seasonal nodes that China people attach great importance to. This is a time to enjoy a bumper harvest and recuperate. Through the rest in winter, I look forward to a rich life in the coming year. Beginning of winter is one of the "four seasons and eight festivals" in ancient society, and it is a very important festival. In some parts of China, there are customs such as ancestor worship and drinking.

4. Since the beginning of the beginning of winter solar term, the westerly jet in South Asia has been fully established. At this time, the fluctuation intensity and eastward movement of the south branch of the high-altitude westerly wind. When the zonal circulation in Asia and the fluctuation of the south branch of the westerly wind are strong, there will be a wide range of rainy weather. In addition, the zonal circulation will end, the meridional circulation will be established, and there will be a cold wave and significant cooling. Farming activities cool down and prevent cold. After winter, the agricultural and forestry crops in the north have entered the wintering period, and the "Sanqiu" (autumn harvest, autumn management and autumn planting) in the Jianghuai area has come to an end, while the south is the best time to rush to plant late-season winter wheat.