Online map of days of strong wind and sandstorm in north China

Note

The red line in the figure indicates the yearly value of the annual sandstorm

Red figures in the figure indicate the number of years of sandstorm days

The figure in black figures: the number of years the number of days

In the figure, the red arrows indicate wind direction and frequency

The map comes from the "China Geographic Atlas" in North China in the gale (≥ 8) the number of days and years of sandstorm days