Climatic characteristics of heavy snow solar terms in southern China

The most common solar term of heavy snow is cooling. China has a vast territory, and the climate between north and south is quite different. The temperature in the south is higher than that in the north. In areas with cold weather or high altitude, there will be snowfall and frost in the south. Strong cold air often brings snowfall or blizzard.

Other places, especially Fujian, Guangdong and Yunnan, are still lush and green, which is quite different from the climate in the north. In the south, the winter climate is mild and there is little rain and snow. Although there is little rain and snow, it is foggy. Generally, 65438+February is the month with the most foggy days. Fog usually appears in cloudless nights or partly cloudy mornings, which is called fog in meteorology. Strong cold air reaches the south, especially in Guizhou, Hunan, Hubei and other places, which is prone to freezing rain. Freezing rain is snow falling from the upper cold layer, sometimes it melts into rain in the middle layer, and becomes supercooled water with raindrops at a temperature below 0℃ in the lower cold layer. Freezing rain happens when it touches anything on the ground.

What are the climatic characteristics of heavy snow solar terms?

According to statistics, the month with the strongest cold air in China is 1 1. From June to February in 5438, the average temperature in most parts of the north was between–5℃ and–20℃, and frost sometimes appeared after the strong cold air in the south.

Heavy snow (blizzard)

We know that strong cold air can often form large-scale snowfall or local blizzard. Snowfall has many benefits, especially for alleviating winter drought, freezing farm diseases and insect pests and promoting winter tourism. However, the snowy road is slippery and icy, which easily leads to civil aviation flight delays, road traffic accidents and lane congestion; In some areas, the closure of mountains and roads by snowstorms will also pose a threat to the safety of people and animals in pastoral grasslands (commonly known as white disasters).

doubt

In June 5438+February, in the south of the Yangtze River, when the temperature is low in the morning, or after rain and snow, the humidity near the ground is high, and patches of fog may appear. The foggy weather in northern cities will also be taken a look.

Ling Xun

In winter, Baotou River in Inner Mongolia is frozen, but Lanzhou River in the south is not frozen, and the river flows to the frozen river. Because the ice dam on the closed river blocked the river coming down from the upstream, the water level was forced to rise, which easily caused the flood disaster of Baotou River embankment. If the strong cold air comes late, it is easy to cause the flood disaster in June+February, 5438.