What do light snow and heavy snow mean in what season?

Among the 24 solar terms, 24 solar terms have different climate characteristics, but many times people tend to confuse several of them. So when are the light snow and heavy snow? What does this mean? Next, let's take a look at this issue of the old almanac!

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When is the light snow and the heavy snow? It's all winter. Light snow 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-scale cold air going south, and there will be a large-scale gale and cooling weather in eastern China. Due to global warming, the snowfall in parts of southern China will be a little late, while in the north, it has entered the freezing season.

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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." It means "light snow". Because of the cold weather, the solar term turns from rain to snow, but at this time, because the ground is not very cold and there is not enough snow, it is called light snow. Entering this solar term, the northwest wind began to become a frequent visitor in China, and the temperature dropped.

Heavy snow, the 2nd1solar term among the 24 solar terms, enters the festival from February 6th to 8th in Gregorian calendar 12 when the sun reaches 255. The arrival of heavy snow in solar terms means that the weather will get colder and colder, and the possibility of snow will greatly increase. Like light snow, rain and Grain Rain, heavy snow is a solar term that directly reflects precipitation. "Twenty-four solar terms" said: "There is heavy snow, November Festival, and there is abundant snow so far." Heavy snow means that the possibility of snowfall is greater than that of light snow, the weather is colder, and the snow often falls heavily and widely. Due to global warming, the snowfall in the south of China is small, but the north is frozen for thousands of miles.

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The solar terms divided by the leveling method can be divided into three periods in the heavy snow season: "When birds wait, they don't sing;" Second, wait for the tiger to pay; Third, when you stand out. "That is to say, because of the cold weather at this time, the birds in Hao Han no longer sing; At this time, Yin Qi was in the heyday, and the so-called prosperity and decline, Yang Qi has sprouted, and tigers have begun to courtship; " "Liting" is a kind of bluegrass, which feels the germination of yang and sends out new buds.

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