Winter is coming. What do you know about beginning of winter and beginning of winter?

1, beginning of winter, is the first 19 of the 24 solar terms and the first solar term in winter. Gregorian calendar1October 7 or 8, when the sun reaches 225 degrees, winter begins. Li also means that winter has started from now on; Everything is harvested in winter, animals take shelter from the rain, and those who harvest in autumn also harvest.

2. The ancients divided each of the 24 solar terms into three equal periods, with a period of five days, thus describing the climate change characteristics of each solar term with three periods. The three stages of beginning of winter are: as soon as the water waits, the ice begins; The second waiting place began to freeze; Waiting for the flood is a cockroach. "

3. The weather changes around beginning of winter are directly reflected in the first waiting for water and the second waiting for ground freezing. Beginning of winter is the beginning of winter. At this time, the cold air in the north has gained great strength and gradually moved to the south. The water surface began to freeze and the land began to freeze, which is the most intuitive manifestation of this climate change. Of course, the 24 solar terms and their corresponding phenology are actually mainly a summary of the climatic conditions in ancient northern China. For the area south of the Yangtze River, 1 1 only feels like winter when it ends. The Pearl River Delta region is closer to the subtropical climate, and it is still warm in 65438+February.