Why are sand and dust weather so frequent in the north this year?

The frequent sand and dust weather in the north is mainly due to the combined influence of multiple factors, including natural and man-made factors:

Natural factors: The natural environment is the basis for the formation of sand and dust weather, including strong winds and other weather conditions as well as natural geographical environments such as drought and desertification. This spring, northern my country was affected by the La Nina climate event, which resulted in low humidity, abnormal atmospheric circulation, and a reduction in desert dust circulation frequency, resulting in frequent sandstorms.

Human factors: Human activities are also a major factor in frequent sand and dust weather. Urbanization, deforestation, excessive land reclamation, and the increasingly popular modern industry, agriculture, and transportation have all increased. The degree of exposure to sand causes dust storm pollution.

External factors: Sand and dust weather are also affected by external factors such as meteorological conditions. For example, weather circulation systems such as the East Asian Summer Monsoon and Siberian High have a direct impact on sand and dust weather, as well as systems such as the Yellow Sea Cold Vortex.

The combined effect of the above factors has led to frequent and long-lasting sand and dust weather in the north this year. In response to this situation, measures such as strengthening ecological environmental protection, promoting desertification control, and curbing over-development should be implemented to reduce the occurrence of sand and dust weather.