What does floating dust mean?

1, dust attached to the surface of an object.

There are a lot of tiny dust floating in the air, which makes the sky yellow. Most of these floating dust are caused by sandstorms and sand blowing.

Floating dust is the lowest intensity sandstorm, so its mechanism is similar to sandstorm. It is often caused by the weakening of strong sandstorms in the distance, or the weakening of local strong winds after blowing sand, which makes fine sand or fine soil particles suspended in the air.

Extended data

Floating dust weather belongs to the lowest intensity sandstorm, and it is also a weather phenomenon caused by the interaction of strong wind and dry dust. In arid areas, dust often accumulates on the ground.

If wind shear and thermal instability stratification occur, the vertical movement of air will be strengthened and the dust in the ground area will be caught up. When encountering dry and cold rapids at high altitude, it is beneficial to the long-distance transportation of dust and sand, and it will form dust storms with different intensities, namely, strong dust storms, sand blowing and floating dust weather.