垂直切变 meaning in English
vertical shear
Examples
- The effect of vertical shear of basic flow on low - frequency waves in tropics
基本气流的垂直切变作用下的低纬低频波 - Within the core of a jet streak , flow speed may reach 200 to 300 km per hour with possibility of multiple maxima
急流中心风速有时可达每小时200至300公里，而且可以有一个或多个风速极大中心，具有强大的水平切变和垂直切变。 - 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。 - The shear experienced by the departing aircraft was due to vertical shear as the plane passed through the low level jet . based on the winds measured on - board a flight departing 8 minutes earlier , there was a rapid increase in head wind component , from 13 kt at 1 , 420 ft to 39 kt at 3 , 100 ft
起飞的飞机所遇到的风切变是由于该机经过低层急流的垂直切变所引致，根据一架在8分钟前起飞的航机量度到的风速，显示逆风由1 , 420尺的每小时13海里急速增加到在3 , 100尺的每小时39海里。 - The third part is the analysis to uprightness instability condition . it is made that there was the ascending air current about shenyang , the hailstone forming height is between 700hpa and 400hpa , die water vapor coagulating height is between 950hpa and 900hpa from the simulated tlogp evolvement chart . cape is in favor of severe convection development
干湿空气间强的风垂直切变是此次冰雹强对流爆发的又一个重要触发机制，强冷空气到达地面强迫暖湿空气抬升，致使对流层中低层出现强风垂直切变，强风垂直切变对强对流的发生和发展起到了非常重要的作用。