Traditional Culture Encyclopedia - The 24 Solar Terms - Data Collection of University Solar Terms Manuscript

You may be interested: What does heavy snow mean? What proverbs are there?

Characteristics of heavy snow weather

basic feature

Data Collection of University Solar Terms Manuscript

You may be interested: What does heavy snow mean? What proverbs are there?

Characteristics of heavy snow weather

basic feature

Data Collection of University Solar Terms Manuscript

You may be interested: What does heavy snow mean? What proverbs are there?

Characteristics of heavy snow weather

basic feature

The most common solar term in heavy snow is cooling. According to statistics, the strongest month of cold air in China is 165438+ 10. After the strong cold air, the average temperature in 65438+February in most parts of the north is between -20℃ and -5℃, and frost will also appear in the south. Strong cold air often brings snowfall or blizzard.

Ordinary weather

Reduce the temperature

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).

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Freezing rain (glaze)

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. The supercooled water drops fall from the air, reach the ground and touch anything on the ground, and immediately freeze to form freezing rain. When freezing rain occurs, uneven ice shells appear on the ground and objects, which will have a great impact on traffic, electricity and communication, and will also cause damage to fruit trees. According to the statistics in the book Climate in the Middle and Lower Reaches of the Yangtze River, freezing rain is prone to occur in the middle and lower reaches of the Yangtze River when the temperature is -3 ~ 0℃ from June to February every year, and the probability of freezing rain is 76%.

hoar frost

According to statistics, from June 165438+ 10 to February of the following year, rime will appear in most parts of the northwest, northeast and Yangtze river basins, mostly in mountainous areas with high humidity. Rime is the milky white ice crystal precipitation formed on objects by direct condensation of water vapor in the air at low temperature or direct freezing of supercooled water droplets. The places with more rime days in winter in China are: Heilongjiang, Jilin, northern Xinjiang and northern Shaanxi. Rime is a kind of natural beauty that people generally appreciate, but sometimes it can also become a natural disaster, which will seriously break wires and trees and affect traffic, power supply and communication.

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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.

ice stream

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.

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