What does the light snow solar term mean?

The light snow solar term is the second solar term in winter, which indicates the coming of winter. At this time, the weather temperature dropped very rapidly, and snowflakes began to float in the northern sky, and the south was also attacked by cold air. Then, this issue of the Old Yellow Calendar will show you what the light snow solar term means.

What does the light snow solar term mean? "Light Snow" is a festival that reflects weather phenomena. There is little snow, and there is no snow on the ground. This is the original meaning of the solar term "light snow". The ancient book "Qunfangpu" says: "Light snow will snow when it is cold, and it will not even snow on the ground, and the snow is not big." In other words, due to the cold weather, the form of precipitation changed from rain to snow in the "light snow" festival, but at this time, because the ground is not very cold, the number of snows is small and the amount of snow is not large, so it is called light snow.

So light snow indicates the beginning time and degree of snowfall. Light snow, like rain and Grain Rain, is a solar term that directly reflects precipitation.

The phenological significance of Xiaoxue: "At first, the rainbow was hidden". Rainbow is formed because there are countless water drops in the air after rain, which refracts the sunlight. At this time, the rainy season has passed, snowflakes are falling, and rainbows naturally do not appear. When the sky rises, there are no crops in the ground, no water in the air, no clouds in the sky and nothing. "The weather is blocked into winter", the weather is getting colder every day, the river begins to freeze, and every household closes the door to prevent cold air from entering the room-winter is coming.

Light snow solar term: Light snow solar term, a relatively stable meridional circulation has been established in East Asia, Siberia often has low pressure or trough, when moving eastward, there will be a large range of cold air heading south, and there will be a large range of windy and cool 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.

Xue Rui indicates a good year, with light snow all over the sky, and next year will be a good year. More snow has many benefits to agriculture: it can protect the ground temperature, store water for crops and kill pests. Snow is also a fertilizer. Snow contains a lot of nitrogen compounds. 1 kg snow contains 7.5 mg of nitrogen compounds, which is four times more than that of rain.

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