下坡气流 meaning in English

downslope flow

The model simulations indicate that the severe storm is occurred in the pattern high - level of northwest flow , the waterjumping downhill flow form taihang mountain is the key mechanism to initiate the convective , on the other hand , the terrain can induce unbalanced low - level flow , which play an importance role in generating the mesoscale gravity waves ( mgws ) by convergence and divergence in low - level troposphere
( 2 )太行山对华北强对流风暴的发生有重要作用。一方面，地形可引起边界层风场的变化，包括风垂直切变、下坡气流和中尺度辐合线，从而对风暴的启动、组织和移动发挥作用；另一方面，山脉背风波动和地形产生的不平衡气流，有利于中尺度重力波( mgws )的产生和维持，并对下游地区强对流天气的发展产生影响。