Source of Sandstorm Source in Qinghai - Tibet Plateau

① northern Tibet Plateau

② Yangtze River - Yellow River source area

Sources of dust storms in northern China

1, to Minqin as the center of the Hexi Corridor

2, to Hotan as the center of the southern margin of the Tarim Basin

3, to Shui Zihu as the center of the Alxa Plateau

4, to Ekusu as the center of the Erdos Plateau area

5, to Zhu and the center of the Hunshandake area

China dust storms of the twentieth century the number of occurrences

Chinese wheat dry hot wind distribution areas

1, serious areas (the average number of dry and hot wind days inmore than 6 days, frequency ≥ 50%)

2, sub-areas (the average number of dry and hot days in the 3-6 days, the frequency of 30 to 50%)

3, light areas (the average number of dry and hot days in 1-3 days, the frequency of 10 to 30%)

Note

The red lines in the figure indicate the path of sandstorms invading our country

The blue arrows indicate that typhoons hit the provinces (typhoons 2 to 6 times a year)

In the figure, the blue arrows indicate the number of typhoons and typhoons (typhoon landing 0.1 to 1.9 times per year)

The red circle in the picture indicates that there are more regions and time of tornadoes (mostly occurred in June to September)

Black arrows indicate: thunderstorms through the region (mostly in the 3-7 months)

The map comes from the "China Geographic Atlas" in China, the distribution of windstorms