The vertical motion in frontal zone would be induced by the orography dynamic lifting and the distribution of convergence which related to the interaction between the boundary layer friction, frontal structure and orography.

• 地形对锋区的垂直运动影响主要通过地形与边界层共同作用,改变锋区流场辐合辐散的分布及地形强迫抬升两条途径实现。