What is the origin of the great cold in the twenty-four solar terms?

The great cold solar term is the last festival in winter. On this day, most parts of our country showed the scene of freezing cold wind. Although the southern region has entered winter, whether it snows or not depends on the original weather conditions. So, do you understand how the slight cold came from?

The origin of the great cold solar term is slight cold, which means the weather is extremely cold. "Give a General Examination" is quoted from "Three Rites and Righteousness": "Slight cold is the middle and shaped by slight cold, so it is called the opposite pole of big ... cold, so it is called slight cold." At this time, the cold current often enters the south, and most parts of China are in the cold stage in a year. Strong wind, ultra-low temperature, the snow on the road surface does not melt, showing a cold scene of freezing cold wind. Slight cold is the last festival of the 24 solar terms in China. After the slight cold, it has entered the holiday cycle of the New Year.

Legend of the Great Cold Solar Term Once upon a time, there was a prodigal son whose family was very rich. But this prodigal son doesn't know the solar terms, and he doesn't farm well. All he knows all day is debauchery, social intercourse and mediocrity. He ate up an ancestral property left by his father, and then he had to borrow money from relatives. After a long time, relatives ignored him. He can only borrow clothes and trousers from his uncle to pawn, and almost all his few clothes are pawned, leaving only a slightly more precious cotton-padded jacket.

On the first day of the first month, the prodigal son called home to pay homage to his early uncle. Actually, he wanted to borrow this cotton-padded jacket. Seeing that my uncle was wearing a cotton-padded jacket and the temperature was so cold, I didn't have the face to open my mouth to let my uncle take off this cotton-padded jacket. It was not until February that the prodigal son thought: At this time, my uncle might not be able to put on his cotton-padded jacket easily, so he rushed to my uncle's house. As soon as my uncle heard that he wanted to borrow a cotton-padded jacket, he said, "On February 28th, chickens and ducks froze to death."

The characteristics of the great cold solar term are the same as those of the slight cold, and it is also a season to show the degree of cold weather. Modern meteorological monitoring records show that slight cold is not as good as slight cold in most parts of China. However, in some years and a few coastal areas, the annual minimum temperature will still appear in the cold solar terms. In the slight cold season, the average temperature in most parts of southern China is 6℃ to 8℃, which is nearly 65438 0℃ higher than that of slight cold. The proverb "slight cold, slight cold, a ball of cold" shows that the great cold solar terms are also the cold stage of the year.

In addition, the people of the whole country are also forecasting and analyzing the situation of precipitation and food crops next year with the change of slight cold weather, and distributing farm work as soon as possible. For example, it rains in cold weather, and there is a lot of precipitation in February and March (Guangxi province). When farmers see three white spots, they have plenty of food and clothing (Jiangxi province), and people are restless when they are not cold (Fujian province). A slight cold winter leads to a bumper year (Guizhou province), and a slight cold leads to a drought.

For slight cold, slight cold is the period with the least precipitation in a year. During the long-term cold solar term, the rainfall in most parts of South China only increased slightly compared with the previous period, with the rainfall in most parts of South China between 5 ~ 10mm and the rainfall in the hillside area of Northwest Plateau only between1~ 5 mm. During the winter drought and winter ploughing in the south, the water consumption is small, and the contradiction between supply and demand of water in the field is generally not prominent.