The following figure shows the ground weather map of a certain area on April 6, 2006 17, and the real-time distribution area of some meteorological disasters caused by the graphic weather system is wi

The following figure shows the ground weather map of a certain area on April 6, 2006 17, and the real-time distribution area of some meteorological disasters caused by the graphic weather system is within the dashed line. earlier times

(1) temperature drop; Air pressure rises; The wind speed increases, and the weather turns fine after cloudy days, resulting in sandstorm weather. (6 points)

(2) sandstorm (sandstorm weather); In spring, the temperature rises rapidly, the topsoil thaws and the surface is dry; Loose topsoil, low pressure, updraft and dust; The north wind is strong, forming a sandstorm. (8 points)

Test analysis:

(1) Looking at the map, it can be seen that the weather in A will be affected by a cold front in the next few days, and its weather change will be a drop in temperature; Air pressure rises; The wind speed becomes larger; It is rainy when it is affected by the front, and sunny when it is affected by the cold air mass. Because of the dry climate, strong wind and dusty weather in spring.

(2) As April 6th is spring, the temperature rises rapidly, and the topsoil thaws and becomes loose; Due to strong winds and updraft, meteorological disasters are dust storms and sandstorms.