Traditional Culture Encyclopedia - Weather inquiry - A large area of yellow sand appears in northern 12 provinces and cities. How are sandstorms formed?

A large area of yellow sand appears in northern 12 provinces and cities. How are sandstorms formed?

There is a large area of yellow sand in northern 12 provinces and cities, and there are many reasons for the formation of sandstorms. One is the need for dusty weather, and the other is the need for strong winds. Generally, sandstorms will form in the season with less precipitation, so for most parts of China, sandstorms usually occur in March every year. This year's sandstorm has also brought great influence to most parts of our country, so paying attention to the causes of sandstorm has a positive impact on our prevention of sandstorm.

The first is the appearance of dusty weather. Sandstorm, only the appearance of dust can form sandstorm weather. The influence of temperature is a big reason. Take this sandstorm as an example. The temperature in northwest Mongolia has risen by five degrees, even higher than other areas. Coupled with the impact of reduced precipitation, it has had a great impact on sandstorms, so it has the capital to raise sand wildly.

The second is the influence of windy weather. In addition to dust, strong winds are needed. The occurrence of this sandstorm was influenced by Mongolian cyclone. There are strong winds in most parts of northern China, which provide better power and thermal conditions for sandstorm weather. This kind of dusty weather is formed when there is sandstorm. When the weather is dry and windy, sandstorms will spread.

Third, the role of vegetation. Vegetation plays a great role in preventing wind and fixing sand, but in the north of March, vegetation has not germinated, and the effect of preventing wind and fixing sand is still weak, so sandstorms can reach the north of China from Mongolia, thus affecting most parts of China. This explains why the dusty weather in China usually occurs in March. In dusty weather, you must take precautions when going out, wear masks and protective clothing.

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