What does the weather in Yang Sha mean?

Sand blowing in the weather refers to the weather phenomenon caused by local or nearby dust being blown by the wind.

Sand blowing is also called high sand (dust) blowing wind, which blows up the dust on the ground and makes the air quite turbid. Weather phenomena with horizontal visibility in the range of 1- 10 km are common in arid areas such as Xinjiang and Inner Mongolia, and appear in spring. There are few in the south.

When blowing sand, the visibility drops obviously. The sky is cloudy and yellow when it appears, and it is easy to appear in the north in spring. When blowing sand, the wind is strong, which affects the visibility between 1 km and1km.

As a sandstorm disaster, sand blowing does not happen in all windy places, but only in arid areas. Sand blowing mostly occurs from April to May every year, mainly in the western and northern regions, with Inner Mongolia, Tibet and Xinjiang being the most serious.

The difference between blowing sand and sandstorm;

It mostly happens when cold air passes through the border in northern spring, but the difference is that the visibility affected by sand blowing weather is between 1 km and 10 km. The visibility of sandstorm and windy weather is even less than 1 km.

Dust weather is a disastrous weather phenomenon in northern China (especially in northwest China) in spring. This kind of weather can be divided into three levels according to the horizontal visibility, namely floating dust, sand blowing and sandstorm.

Sand blowing is because the wind blows up dust or sand on the exposed ground. The visibility of this weather is between 1 km and1km, which is called sand blowing weather. The difference between sand-blowing weather and dusty weather is that some dust is generated in situ and some is blown from other places.

The dust suspended in the atmosphere causes the horizontal visibility of the atmosphere to be less than 10 km, and the dust on the ground is blown up by the sand blowing wind, which makes the air quite turbid, and the horizontal visibility is between 1 ~ 10km.

The strong wind of sandstorm blows up the dust on the ground, making the air very turbid. The horizontal visibility is less than 1 km. When the horizontal visibility is less than 500 meters, it is a strong sandstorm. The common characteristics of sand blowing and dust are obviously reduced visibility and cloudy sky.

Most of them occur in the northern spring when cold air passes through the border. The difference is that the visibility affected by sand blowing weather is between 1 km and 10 km, while the visibility of sandstorm and windy weather is even less than 1 km.