Tang mengjiao
It is cold and blue, and the north wind is called withered mulberry.
There is no crack in the thick ice, and there is cold light in a short day.
Knocking on a stone can't make a fire. ?
What's the point of adjusting bitterness? It is frozen in this chapter.
Once there is strong cold air affecting South China, most areas south of Nanling are near the Tropic of Cancer. However, as the temperature rises in the process of falling, it is very likely that snow will fall in the south of the Qinling-Huaihe line in China.
First of all, China's winter cooling is a cumulative process. As we all know, the ocean water temperature is higher than the land temperature in winter. Under normal circumstances, even in the south of the Tropic of Cancer, there are more short-wave solar radiation, and the bottom of the westerly trough may not affect these areas, so the ocean will not freeze. These areas are regulated by land-sea circulation, and the northwest wind behind the trough is not enough to make cold air reach the area, so the cooling situation in this area is not obvious.