The meaning of light snow season

The meaning of the light snow season is as follows: the temperature continues to drop and it begins to snow.

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-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.

Knowledge expansion:

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." That is to say, due to the cold weather, in the "light snow" solar term, the form of precipitation changed from rain to snow, 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.

"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". Like rain and Grain Rain, light snow is a solar term that directly reflects precipitation.

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.

The light snow solar term does not necessarily snow, but refers to the light snow season, when the temperature drops to the point where it can snow. However, because the surface temperature is not low enough, even if it falls, the snowfall will be small or even absent. So whether it will snow this day depends on the current weather.