What is the meaning of sand-blowing weather (understand the causes and effects of sand-blowing weather)

Sand blowing weather refers to a large-scale sandstorm caused by the wind blowing away the exposed sand on the ground under dry and windy conditions. This weather phenomenon usually occurs in desert or desertification areas, but it may also occur in other areas. Sand-blowing weather has great influence on human beings and the environment.

Causes of sand blowing weather

There are two main reasons for sand blowing weather: one is natural factors, including meteorological conditions and topographic conditions; The second is human factors, including overgrazing, over-reclamation and over-exploitation.

weather conditions

Meteorological conditions are one of the main factors that form sand blowing weather. Meteorological conditions include wind speed, wind direction, relative humidity and temperature. Generally speaking, the greater the wind speed, the easier it is to blow sand. In addition, the wind direction is also an important factor affecting the sand blowing weather. If the wind blows from desert or desertification area, it is more likely to blow sand. Relative humidity and temperature will also affect the occurrence of sand blowing weather.

terrain condition

Topographic conditions are also one of the important factors that form sand-blowing weather. Terrain conditions include surface coverage, terrain elevation difference and terrain slope. If the surface coverage is less, the terrain elevation difference is larger, and the terrain slope is steeper, then it is more prone to sand blowing weather.

human factor

Human factors will also affect the occurrence of sand-blowing weather. Overgrazing, over-reclamation and over-exploitation will destroy the land vegetation and expose the land to the wind, thus increasing the probability of sand blowing weather.

Influence of sand-blowing weather

Sand-blowing weather has great influence on human beings and the environment.

Influence on human beings

Sand-blowing weather will affect human health. Sandstorm contains a lot of harmful substances such as dust and bacteria, which is easy to cause respiratory diseases. In addition, sandstorms will also affect infrastructure such as transportation and power supply, which will bring inconvenience to people's lives.

Impact on the environment

Sand-blowing weather will also have an impact on the environment. Sandstorms will destroy land vegetation and lead to land desertification. In addition, the dust in the sandstorm will also affect the atmospheric environment and have an impact on climate and global warming.

How to deal with sand-blowing weather?

Keep indoor ventilation

In sandstorm weather, you should try to stay indoors and keep indoor ventilation. If there is no air conditioner and purifier, you can put a wet towel under the door to prevent dust from entering the room.

Put on a mask

Wear a mask when going out to prevent dust from entering the respiratory tract.

Reduce outdoor activities

In sandstorm weather, outdoor activities should be minimized to avoid exposure to dust.

Maintain water intake

In sandstorm weather, drink plenty of water, keep water intake and prevent dehydration.