isobaric vorticity 中文意思是什麼
-
Through analysis of potential vorticity in isobaric surface field, in low - troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation, at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower - troposphere ; soon positive potential vorticity disturbance in high - troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage ; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600 - 700 hpa isobaric surface field ; when near ground arises negative potential vorticity disturbance, precipitation also weaken
通過對等壓面的位渦分析，發現了在暴雨發生前，在對流層低層有正位渦擾動存在並向北形成傾斜的擾動柱，同時也反映了對流層低層正位渦擾動對強對流天氣的觸發作用；隨后高層正位渦向下擾動，形成一個垂直擾動柱，這時對應降水的發展階段：在暴雨的鼎盛階段， 600 700hpa上空維持水平分佈的等值線，在其上還有正的位渦擾動；當近地面出現負的位渦擾動時，降水隨之也減弱。 -
The potential vorticity ( pv ) on isobaric and isentropic surface was studied. furthermore, the pv structure of another rainstorm caused by the 9711 typhoon was compared with it and the difference of the two rainstorm was discussed
另外又與1997年第11號臺風登陸北上造成山東全省大到暴雨過程的位渦場結構進行了對比分析，討論了兩次暴雨過程位渦場結構的異同。 -
The interaction of the positive isobaric moist potential vorticity disturbance at low and upper level is a possible mechanism of the genesis and development of mesoscale vortex
發現高低空正的濕位渦擾動的共同作用是對流層中低層中尺度低渦生成的一種可能機制。
分享友人