What is the difference between the weather names of dust, dust, and sandstorms?

**According to experts from the Meteorological Observatory, sand blowing and sandstorms are caused by local or nearby dust blown by the wind.

Their common features are:

Visibility is noticeably reduced, and the sky appears cloudy and yellow. Most of the two occur when cold air passes or when thunderstorms and squall lines are affected, and both are prone to occur in the north in spring.

The difference is:

The weather is windy, and the visibility affected is between 1 km and 10 km;

The sandstorm was very windy and the visibility was less than 1 km.

Floating dust is caused by the floating of fine particles such as dust and dust storms or sand blowing in distant or local places.

Formed in the air, commonly known as "falling yellow sand", distant objects appear in the yellow, the sun is pale or yellow, the visibility is less than 10 kilometers, and it appears roughly before and after the passage of cold air.

Dust refers to the cause of construction engineering, house demolition, municipal facilities construction, material transportation and stacking, road excavation, maintenance, cleaning, etc.

Blowing sand, dust, and floating dust are all manifestations of minor sandstorms, and severe sandstorms are called black storms, and the scene is extremely spectacular

The textbook explanation, absolutely correct:

Floating dust occurs before and after the passage of cold air without wind or when the wind is small, and is transmitted by distant sand and dust through high air currents. It may be caused by sand blowing or dust floating in the air after a sandstorm or dust storm that has not yet settled. The visibility distance is less than 10km, and the vertical visibility is also poor.

Blowing sand is caused by the blowing of sand and dust in or near the area, resulting in a significant reduction in visibility, which is generally 1-10 km. The sky is cloudy and the wind is strong. In the northern spring and summer, it occurs when cold air passes through the mirror or when the air is unstable.

The causes of sandstorms are similar to those of sandstorms, but visibility < 1 km. The wind is strong. It is often accompanied by strong convection or thunderstorm transits.

The difference between floating dust and blowing sand is that blowing sand is formed by blowing up local or nearby dust, and floating dust is more than far away (it may also be formed after blowing sand, and the dust is still floating in the air); The main thing is that when the sand is raised, the wind is strong, the air is unstable, and the conditions for floating dust are light or no wind. The main difference between a sandstorm and blowing sand is less visibility.

1.Floating dust: occurs before and after the passage of cold air without wind or when the wind is small, and is transmitted by distant sand and dust through high air currents, or caused by sand and dust floating in the air that has not yet sunk after the sand or dust storm;

2.The visibility distance is less than 10 km, and the vertical visibility is also poor;

3.Blowing sand: due to the blowing of local or nearby sand and dust, the visibility is significantly reduced, and the visibility distance is generally 1 to 10 km;

4.In the spring and summer of the north, cold air occurs when the mirror or the air is unstable;

5.Sandstorms: The causes are similar to those of Yangsha Liang, but the visibility is less than 1 km, the wind is strong, and it is often accompanied by strong convection or thunderstorm transit;

7.What's more, when the sand is raised, the wind is strong, the air is unstable, and the floating dust is the condition that the rubber liquid seems to have little wind or no wind;

8.The main difference between a sandstorm and blowing sand is less visibility.

Blowing sand refers to a weather phenomenon caused by local or nearby dust and sand being blown by the wind.

When the sand is blown, the visibility is noticeably reduced, and when it appears, the sky is cloudy and yellow. The north stove sedan chair is easy to appear in spring. The wind is strong during the blowing sand weather, and the visibility affected is between 1 km and 10 km.

Floating dust: When the weather conditions are windless or the average wind speed is less than or equal to 3 m s, dust and sand float in the air, so that the horizontal visibility is less than 10 km.

Blowing sand: A weather phenomenon in which the wind blows dust from the ground, making the air quite cloudy, and the horizontal visibility is between 1 km and 10 km.

The difference between floating dust and blowing sand is that blowing sand is formed by blowing up local or nearby dust, and floating dust is more than far away (it may also be formed after blowing sand, and the dust is still floating in the air); The main thing is that when the sand is raised, the wind is strong, the air is unstable, and the conditions for floating dust are light or no wind.

1. Floating dust

On a floating day, dust and fine sand will float evenly in the air, and visibility is also very poor, and horizontal visibility is less than. There are two reasons for the occurrence of floating dust, one is that before and after the passage of cold air, there is no wind or wind, and the dust is transmitted by distant sand and dust through high air currents. The second is caused by the floating sand and dust that has not yet sunk in the air after the blowing sand or sandstorm weather.

2. Yangsha

The air is quite turbid due to the strong winds that blow up the dust and sand on the ground, and the horizontal visibility is between the to. Blowing sand is caused by local or nearby sand and dust being blown up, resulting in reduced visibility, cloudy skies, and strong winds. In the northern spring and summer, it occurs when cold air passes through the mirror or when the air is unstable.

Sandstorms

Dust storms have similar causes to blowing sand, but with lower visibility and strong winds. It is often accompanied by strong convective laughter or thunderstorm transits. Due to the strong winds that blow up a large amount of dust and sand on the ground, the air is quite turbid and the horizontal visibility is even less than 1 km.

According to visibility, sandstorms are further divided into three levels: sandstorms (visibility is less than; Strong sandstorms (visibility is less than collapse; Extremely strong sandstorms (visibility less than.

Mr. Lu Xun once wrote: "The wind carries the sand and the sun makes the yellow of cinnamon." And the "cinnamon yellow" sunlight was originally the "desert wind and dust and the sun is dark" described by the poets of Biansai.

In this kind of weather, you must take protective measures. Because it is likely to induce allergic diseases, epidemics and infectious diseases. Under normal circumstances, human nasal cavity, lungs and other organs will have a certain filtering effect on dust, but the fine dust caused by the violent weather phenomena of sand blowing and sandstorm is too dense and our filtration system is still difficult to handle.

Even if a person in good health inhales dust for a long time, he will experience a variety of uncomfortable symptoms such as coughing and wheezing, leading to the outbreak of epidemics.

Sand-duststorm is a general term for sandstorm and duststorm, which is a sign of desertification.

It refers to a disastrous weather phenomenon in which strong winds roll up a large amount of sand and dust from the ground, making the horizontal visibility less than 1,000 band touching meters, and has the characteristics of suddenness and short duration. Among them, sandstorm refers to a sandstorm formed by a large amount of sand particles blown into the near-ground layer by a large amount of hail. A dust storm is a storm formed by high winds that sweep large amounts of dust and other fine particles into the air.

It refers to a disastrous weather phenomenon in which strong winds roll up a large amount of sand and dust from the ground, making the horizontal visibility less than 1 km, and having the characteristics of suddenness and short duration.

A sandstorm is a weather phenomenon that usually refers to the fact that the dust in desert or semi-arid areas is swept up by the wind due to drought, strong winds, and sparse vegetation on the surface of the ground, forming huge dust storms and drifting with sand particles.

Dust storms usually occur in spring and autumn and occur worldwide, especially in the Middle East, Africa and Asia. Dust storms can have many negative impacts on humans and the natural environment, such as reduced visibility, obstructed transportation, and damaged health.