Today is the heavy snow in the 24 solar terms. What's the meaning of the heavy snow solar terms? What's the function of our 24 solar terms? Today, I will introduce the "heavy snow" in the 24 solar terms to you.
Snow of 24 solar terms
The Chinese lunar calendar is based on the changing cycle of the moon phase. Each new moon phase changes into a month, and the reference solar return year is the length of a year. By setting 24 solar terms and leap months, the average calendar year is adapted to the return year. The 24 solar terms in the lunar calendar are determined according to the different positions of the earth on the ecliptic. They reflect the changes of seasons. They are important agricultural production guidance strategies in the period of farming society in China. They are also the important basis for predicting the cold, warm, rain and snow in daily life.
24 solar terms
The 24 solar terms are spring, rain, hibernation, vernal equinox, Qingming, Guyu, summer, Xiaoman, Mangchong, summer solstice, Xiaoshu, Dashu, Liqiu, Chushu, Bailu, autumnal equinox, Hanlu, frost drop, Lidong, Xiaoxue, Blizzard, winter solstice, Xiaohan and Dashan. Heavy snow is the 21st solar term among the 24 solar terms, that is, when the sun reaches the Yellow longitude of 255 & deg;, about 15 days after the light snow solar term, which is the third solar term in winter, generally on December 6, 7 or 8 of the Gregorian calendar every year, and December 7, 2018 is the heavy snow solar term of this year.
Heavy snow
The heavy snow and light snow solar terms are also solar terms reflecting weather phenomena. In the cold winter, the lowest temperature in most areas of China has dropped below 0 ℃, while the strong Asian high pressure constantly releases cold air to the low latitude areas. When the cold air sweeps across China from north to south, it is easy to form heavy snow or even Blizzard when it collides with warm and humid air. The most consistent area with the heavy snow solar term is the north of the Huaihe River in Qinling Mountains. At this time, there is snow on the ground, especially in the northeast and northwest.
Heavy solar term
In meteorology, according to the level of snowfall, it can be divided into light snow, middle school, heavy snow and blizzard. Heavy snow refers to poor visibility, with horizontal visibility below 500m, ground snow depth greater than 5cm, and 24-hour snowfall of 5-9.9mm. In the heavy snow season, most of China has entered into winter except South China and South Yunnan. In this season, due to the low temperature in the northeast and northwest of China, the "rime" landscape is easy to appear, and the "ice flood" phenomenon is easy to appear in the Yellow River Basin due to the ice cover of the river channel.
Heavy snow
As the saying goes: 'light snow pickles, heavy snow pickles'. It is the wisdom of our ancestors to make use of the favorable conditions of low temperature in winter to pickle and preserve food, and let time to process food. At the same time, for our human body, it is a good time to supplement in the cold winter. As the saying goes, "supplement in winter, fight tigers in spring" says, supplement in winter can improve the immunity of human body, promote metabolism, and improve the ability to resist the cold. As the saying goes, "supplement one winter in September, and there will be no pain in the next year".