Traditional Culture Encyclopedia - The 24 Solar Terms - What does light snow mean?
What does light snow mean?
Xiaoxue is the twentieth of the twenty-four solar terms. The time is165438+1October 22 or 23 of the Gregorian calendar every year, that is, when the sun reaches 240 degrees of the yellow meridian. "Light snow" is a solar term reflecting the climate characteristics.
There is no necessary connection between the light snow in solar terms and the light snow in the weather. The meaning of "light snow" in solar terms is different from that in daily weather forecast. Xiaoxue solar term is a climate concept, which represents the climate characteristics during Xiaoxue solar term. The light snow in the weather forecast refers to the snow with less snowfall intensity. Light snow solar term is a solar term with high frequency of cold wave and strong cold air activity.
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 range of cold air going south, and there will be a large range of strong winds in East China to raise the temperature. Due to global warming, snowfall in parts of southern China will be delayed, while in the north, it has entered the freezing season.
The meaning of solar terms:
Xiaoxue is the twentieth of the twenty-four solar terms. The starting point is165438+1October 22nd or 23rd in the Gregorian calendar every year. The sun is located at declination-2016' and the longitude reaches 240.
"Twenty-four solar terms" said: "In mid-October, the rain was thin because of the cold, so it condensed into snow. The words of the villain are not prosperous. "
"Light Snow" is a festival that reflects weather phenomena. The ancient book "Qunfangpu" said: "A light snow will snow when it is cold, but the ground is not cold and the snow is not heavy."
There is a cloud in the poem: "The first snow in Taihang Mountain brought a cold wind and withered all the way to central Jiangxi. When chrysanthemums wither and plum blossoms move in the dark, we know that the earth turns to the sun. " (Heshui Zuo's "Light Snow")
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