Light snow solar terms do not mean that there will be a small amount of snow. What is the significance of this solar term?

When the light snow solar term comes, that is, every year,1October 22nd,165438+1October 23rd, the light snow climate appears in the light snow solar term. The definition of primary school is 1.5mm to 3mm, which is light snow. But the climatic conditions are different from place to place. Some places may be as warm as spring, and some places may have snowed heavily.

According to ancient records, the light snow is the time when everything in the pavilion of heaven and earth is hidden, that is, the earth is the earth's gas and the earth's gas is hidden, while the sun in the sky is gradually weakening, and the two are isolated from each other without blending, which is the so-called isolation between heaven and earth. Everything is hidden, that is to say, after a light snow, the permafrost will increase. In Northeast China, after a normal light snow, the frozen soil layer will increase by about one centimeter every day. Of course, this is also related to the change of local climate conditions. If the temperature rises for a period of time, it may also appear repeatedly. After a light snow, the moving soil layer basically reaches about 20 cm a month.

When we really go to college, even on the winter solstice, when the northeast is coldest, the frozen soil layer can reach one meter to three meters, which is not so cold in the ordinary northern region, because the average temperature in the northeast can reach about MINUS 30 degrees when it is the lowest. This is the northeast in a broad sense, not specifically those places that are particularly far north. Those places may reach MINUS 40 degrees, so the temperature will gradually drop after a light snow. This decline is no longer a short-term decline, and it is no longer the time for a correction. Instead, it really ushered in cooling, which is a seasonal change.

It's good to have a little snow when it snows. For many friends in the south, it may not have seen snow for decades, but for friends in the northeast, it may snow every few days. This is nothing unusual. This is the difference in life experience caused by different climatic conditions. Snow is really a beautiful thing. Especially after the modern transportation infrastructure is gradually improved, even if it snows, it will not affect people's normal travel, and the beautiful changes brought by snow are more prominent.