Interpretation of climatic characteristics of light snow solar terms
2013165438+1October 22nd is the "light snow" among the 24 solar terms. When the longitude of the sun reaches 240 degrees, the light snow solar term begins. At this time, the temperature dropped, the temperature of the gas layer gradually dropped below 0℃, and snowfall began, but the amount of snow was not large.
The northeast wind began to become a frequent visitor in China, and the temperature gradually dropped below 0℃, but the earth was not too cold. Although it began to snow, the amount of snow was not large, so it was called light snow. At this time, the yang is rising and the yin is falling, which leads to the impassability of heaven and earth, the imbalance of yin and yang, the loss of vitality of everything, the occlusion of heaven and earth and the turning into severe winter. The first snow will appear in the area north of the Yellow River, reminding people that it is time to keep out the cold and keep warm.
During the light snow solar term, a relatively stable meridional circulation has been established in East Asia, and low pressure or trough often appears in Siberia. When moving eastward, there will be a large-scale cold air going south, and there will be a large-scale gale and cooling weather in eastern China. Light snow solar term is a solar term with high frequency of cold wave and strong cold air activity. When strong cold air affects, it is often accompanied by the first snow in winter.
In the light snow solar terms, the first time is the rainbow, the second time is the sky is high and the clouds are light, and the third time is blocked from entering the winter. It means: due to the drop in temperature, it is snowy below the north, no more rain, and no rain rainbow can be seen; Because of the rising of the yang in the sky and the falling of the yin in the ground, yin and yang do not meet, and heaven and earth are blocked; So heaven and earth became one, and it became a cold winter.
China has a vast territory, and the "light snow" representatively reflects the climate in the middle and lower reaches of the Yellow River. At this time, the north has entered the freezing season. "There is no rain in the lotus, but there are still Ao Shuang branches in the chrysanthemum", which has already presented the scene of early winter.
Generally speaking, the weather during the "light snow" period has the following two climatic characteristics: 1, and the temperature keeps falling. During the solar term in beginning of winter, there is snow in most parts of northwest and northeast China. When it comes to the light snow solar term, it means that there will be snowfall in North China. If the beginning of winter solar term marks the entry of winter in most parts of northern China, the direct performance of cold air is to gradually make the temperature in these areas reach below 0℃ in the light snow solar term. We all know that precipitation will change from rain to snow only when the air temperature under clouds and clouds is lower than 0℃. Therefore, it is an indisputable fact that the temperature in light snow stage is lower than that in winter stage. The middle and lower reaches of the Yangtze River have entered winter one after another.
Many areas in the middle and lower reaches of the Yangtze River have entered the winter one after another. Beginning of winter solar terms in northern China have basically entered winter. In the light snow solar term, many areas in the middle and lower reaches of the Yangtze River have entered the winter one after another. Although with the arrival of winter, the precipitation in the whole country has gradually dropped to the lowest point in a year, the rainfall in Jiangnan is still higher than that in Jiangbei. Even if the first snow only appeared in the middle and late June of 65438+February in this area, the rainy weather at this time gave people a feeling of wet and cold rather than cool in late autumn, which was much worse than that of people with heating conditions in dry and cold areas in the north.
Related articles: What can Xiaoxue eat to keep fit? The origin of the light snow solar term in the twenty-four solar terms. What fruit can the first frost eat to keep fit? What do you eat on the solstice in winter? (Chaos, Jiaozi, Tangyuan)
Learn more about horoscope encyclopedia, horoscope marriage, horoscope career, marriage fortune, horoscope of the god of wealth, emotional combination, seeing the other half, horoscope calculation, name speed matching, life fortune, compound opportunities. You can click on the bottom for online consultation (for entertainment only): /xz/