Da Xue is the 21st solar term among the 24 solar terms, and the sun reaches 255 degrees of the ecliptic longitude.
The interpretation of the "Seventy Two Seasons of the Moon": "Heavy snow, November Festival. The greater the snow, the more prosperous it is. At this point, the snow is abundant. As the name suggests, heavy snowfall is more likely than light snowfall, and the weather is colder. The Da Xue solar term indicates the degree of heavy snowfall, which, like the Xiao Xue, Yu Shui, Gu Yu and other solar terms, directly reflects precipitation.
From astronomy, to the landscape of the earth, and to culture, the meaning of the Great Snow Festival is extremely rich. At this time, there is gradually snow accumulation in the Yellow River Basin of China, while the north presents a charming landscape of thousands of miles of snow drifting.
The ancient Chinese divided the heavy snowfall season into three periods: one period when the crows do not chirp; The second tiger begins to cross; San Hou Li stands out.
It's the season of heavy snowfall, the weather is cold, and the cold horn birds no longer sing; At this time, the Yin energy is at its peak, as the saying goes, when it reaches its peak and declines, the Yang energy has begun to sprout, and the tiger begins to engage in courtship behavior; Liting "is a type of orchid that can also feel the sprouting of yang energy and sprout new shoots.
During the heavy snow season, most parts of China have entered winter, with the lowest temperature dropping to 0 ℃ or below. In areas where strong cold air fronts and warm and cold air clash, heavy snow or even blizzards may occur. At this time, snow has gradually accumulated in the Yellow River Basin, while in further northern areas, heavy snow is falling.
But in the south, especially in Guangzhou and the Pearl River Delta area, there are still lush vegetation, which is very different from the climate in the north. The winter climate in the southern region is mild with less rain and snow; Although there is less rain and snow, there is more fog. Generally, December is the month with the most foggy days. Fog usually appears in the early morning when there are few or no clouds at night, and meteorology calls it radiation fog.
Preserving meat, having snowball fights, admiring snow scenery, and nourishing food are all folk customs during the Great Snow Festival.
There is a saying in old Nanjing called 'Little snow pickled vegetables, big snow cured meat'. At this moment, every household's doorstep and windowsill will hang cured meat, sausages, salted fish and other pickled products, forming a unique scenery.
The small snow seals the land, the heavy snow seals the river. In the north, there is a natural landscape of "thousands of miles frozen, thousands of miles of snow drifting", and in the south, there is also a charming painting of "snowflakes flying, silver in the sky". During the heavy snowfall season, the rivers in the north freeze, allowing people to freely skate and play. Making snowmen, ice skating, skiing, and rolling snowballs are all outdoor activities loved by young people. As for those who like to stay indoors, drinking a steaming hot soup or having a hot pot meal are both affordable ways to keep warm.
