Where does dusty weather often appear?

Sandstorms mostly occur in northwest and north China of China.

In China, there are two sandstorm-prone areas: the first is in the northwest, mainly concentrated in three areas, namely, the surrounding area of Tarim Basin, Turpan-Hami Basin passing through Hexi Corridor, Ningxia Plain to northern Shaanxi, Alashan Plateau, Hetao Plain and Ordos Plateau in Inner Mongolia; The second frequent area is in North China, Chifeng and Zhangjiakou, which directly affects the safety of the capital Beijing.

In China, there are two sandstorm-prone areas.

The first frequent area is in the northwest, mainly concentrated in three areas, namely, the surrounding area of Tarim Basin, Turpan-Hami Basin passing through Hexi Corridor, Ningxia Plain to northern Shaanxi, Alashan Plateau, Hetao Plain and Ordos Plateau in Inner Mongolia.

The second frequent area is in North China, Chifeng and Zhangjiakou, which directly affects the safety of the capital Beijing.

Li Huang, deputy director of China Meteorological Bureau, announced to the media that northwest China is also a region where sandstorms frequently occur due to its unique geographical environment. The main source areas are Gurbantunggut Desert, Taklimakan Desert, Badain Jaran Desert, Tengger Desert, Wulanbuhe Desert and Mu Us Desert.

The analysis shows that two-thirds of the dusty weather originated in southern Mongolia and was supplemented by dusty materials when passing through northern China. The sand source in China is only about one third. The dusty weather in Central Asia (Kazakhstan) is unlikely to affect the eastern part of Northwest China or even North China. The Taklimakan Desert in southern Xinjiang is a high incidence area of sandstorm weather in China, but it generally does not affect the eastern part of northwest China and North China.

The dust weather path in China can be divided into northwest path, west path and north path: northwest path 1. Dust weather generally originates from the central and western plateau of Mongolia or Alashan Plateau in western Inner Mongolia, and mainly affects northwest and north China.

Northwest Route 2. Dust weather originated in southern Mongolia or central and western Inner Mongolia, mainly affecting the eastern part of northwest China, northern North China and most of northeast China; To the west, dusty weather originated in Gobi area in southwest or south Mongolia and desert area in western Inner Mongolia, mainly affecting northwest and north China. In the northerly route, dusty weather generally originates in the vast area south of Ulaanbaatar, Mongolia, and mainly affects the eastern part of northwest China, most of north China and southeast China.

Dust weather type:

Dust weather is divided into four categories: floating dust, sand blowing, sandstorm and strong sandstorm.

Floating dust: a weather phenomenon in which dust and fine sand float evenly in the air, making the horizontal visibility less than 10 km;

Sand blowing: a weather phenomenon in which the wind blows up dust on the ground, making the air quite turbid and the horizontal visibility is within the range of 1 km to1km;

Sandstorm: a weather phenomenon in which strong winds blow up a lot of dust on the ground, making the air very turbid and the horizontal visibility is less than 1 km;

Strong sandstorm: a weather phenomenon in which strong winds blow up dust on the ground, making the air fuzzy and turbid, and the horizontal visibility is less than 500 meters.