Sandstorms often occur in spring in northern China. What kind of weather system (cold front, warm front, cyclone, anticyclone) is related to the formation of sandstorm?

Weather and climate are two completely different concepts.

Weather systems generally include frontal systems (cold front, warm front, quasi-static front, etc. ) and pneumatic system (high pressure, low pressure, saddle shape, high pressure ridge, low pressure trough, etc.). ).

The weather system that forms sandstorms is a cold front. The cold front is the front where the cold air mass actively moves to the warm air mass.

In winter and spring, the temperature in the higher latitudes in the hinterland of the mainland is lower, forming a cold high, such as the Mongolian Siberian high in Eurasia. The air mass moving from the cold high pressure center to the low latitude belongs to the cold air mass. The source of the cold air mass is mostly desert distribution area, with dry climate and low vegetation coverage. The surface dust is easily transported by the wind and becomes the sand source of sandstorms.

In winter and spring, the water vapor content in the heated air mass is also less, and it is difficult to form precipitation after the cold and warm air masses meet, thus forming sandstorm weather.

After the sandstorm, the local temperature will drop because the cold air mass controls the local area.