What does the solar term snow mean?

Heavy snow is 2 1 of the 24 solar terms and the third solar term in winter.

The solar term of heavy snow is the beginning of the second month of the dry calendar, marking the official start of the mid-winter season. Heavy snow is a solar term reflecting climate characteristics. Heavy snow solar terms are characterized by a significant drop in temperature and an increase in precipitation. Heavy snow is 2 1 of the 24 solar terms and the third solar term in winter. When the sun reaches the longitude of 255 degrees, the node time is 65438+February 6-8 in Gregorian calendar every year.

During the heavy snow, the national temperature dropped significantly, and the cold air in the north became more and more active. The heavy snow solar term is a climate concept, which represents the climate characteristics during the heavy snow solar term, that is, temperature and precipitation (water vapor condensate such as rain, snow and hail falling from the sky to the ground is called "precipitation" in meteorology). Like the light snow solar term, the heavy snow solar term is a solar term reflecting the changing trend of temperature and precipitation, and it is also a reflection of ancient farming culture on festivals.

Heavy snow meteorological change

"Heavy snow" is a solar term reflecting the climate characteristics. The characteristics of heavy snow solar terms are that the temperature drops obviously compared with autumn and early winter, and the precipitation increases. During the heavy snow season, most parts of China have entered the cold winter, and the minimum temperature in some parts of the north has dropped to 0℃ or below. Cold and warm air in areas where strong cold air fronts meet, precipitation (rain or snow) increases. Meteorology refers to the condensation of water vapor falling from the sky to the ground, such as rain, snow and hail, as "precipitation".

The heavy snow in solar terms and the heavy snow in weather have different meanings. In fact, the snow in heavy snow solar terms is often not as big as that in light snow solar terms, and the solar terms with the largest amount of snow in the whole year are not in light snow and heavy snow solar terms. Take the middle and lower reaches of the Yellow River as an example. Among the 24 solar terms, the solar term with the largest snowfall all year round is neither "light snow and heavy snow" nor "slight cold and severe cold", but "rain" in spring. This snow is not the biggest in the solar terms. The reason is similar to "light snow is bigger than heavy snow".

The above contents refer to Baidu Encyclopedia-Heavy Snow.