isobaric surface 中文意思是什麼
isobaric surface
解釋
等壓面-
The positive storm - relative helicity center is accompany with low - level jet in 850 - hpa isobaric surface fields
通過分析我們發現了正的相對螺旋度中心與850hpa低空急流的演變過程是一致的。 -
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。 -
In the atmosphere, geopotential varies with altitudes and across latitudes. on an isobaric surface, higher geopotential implies higher potential energy and vice versa. just like streams flow according to the layout of terrain, air will flow from high to low geopotential regions
在等壓面天氣圖上，位勢高的地方位能較高，位勢低的地方位能較低，高空的氣流會由前者流向後者，情況有點像河川根據山脊高低的分佈而流動一樣。
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