Traditional Culture Encyclopedia - The 24 Solar Terms - Xiaoxue solar term 2022
Xiaoxue solar term 2022
Xiaoxue is the twentieth solar term among the twenty-four solar terms and the second solar term in winter, and the time is165438+1October 22nd or 23rd in the Gregorian calendar every year. Light snow time in 2022165438+1October 22nd.
"Snow" is the product of cold weather, so "light snow" is used to describe the climate characteristics of this solar term "the climate is not deep and the precipitation is not heavy".
Meteorological changes:
Light snow solar terms indicate that a relatively stable meridional circulation has been established in East Asia. When the Siberian depression or trough moves eastward, a large range of cold air will go south, bringing a large range of windy and cool weather.
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. Light snow solar term is a climate concept, which reflects the temperature and precipitation.
The "light snow" in the weather forecast refers to the snow with less snowfall intensity. Meteorologically, the horizontal visible distance is equal to or greater than 1000m, the ground snow depth is less than 3cm, and the snowfall in 24 hours is between 0. 1-2.4mm, which is called "light snow". ..
Light snow solar terms do not necessarily snow. In fact, the solar terms with the largest snowfall in the whole year are not in light snow and heavy snow. For example, the solar term with the largest annual snowfall in the middle and lower reaches of the Yellow River and its vicinity is neither "light snow and heavy snow" nor "slight cold and severe cold", but a "rainy" solar term in spring.
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