The formation of the surface strong wind is caused by the cyclogenesis, clod advection behind the cold front and the downwardly transmission of the upper level jet momentum.

• 沙尘暴过程主要是由气旋冷锋及锋后地面大风触发的,地面大风的形成与气旋发展、锋后冷平流以及高空急流动量下传有关。