1) low-level PV anomaly
低层位涡扰动
1.
The character of upper/lower PV are analyzed based on PV anomaly with the genesis and development of cyclone, with results that low-level PV anomaly (LPVA), which is isolated from upper PV anomaly and has a leading/simultaneous current relative to cyclone, will grow upward, join with upper level downward PV anomaly, form PV anomaly column (PVAC) under available conditions.
从湿位涡的扰动量出发,来分析气旋发展过程中高低空位涡的变化,结果表明:低层位涡扰动先于气旋并孤立于高层位涡扰动而存在,在气旋发生过程中,低层正值位涡扰动发展上伸,与高层下传的位涡相接,形成一条正值位涡扰动柱,而湿位涡扰动柱的形成正是气旋发生的重要标志。
2) upper tropospheric perturbation
对流层高层位涡扰动
1.
The effect of upper tropospheric perturbation PV on the development of the South-West Meso-cyclogenesis is discussed on Hoskins PV Principle in terms of conservation of PV on isobaric surface and humid isentropic PV.
基于Hoskins位涡理论思想从等压面位涡守恒和湿等熵位涡守恒的角度来研究对流层高层位涡扰动对低层西南涡的发生发展影响 ,发现对流层高层位涡扰动是影响西南涡发生发展的重要因素 ,它对西南涡的影响表现出它有向南向下倾斜伸展的特点 。
3) PV anomaly column
位涡扰动柱
1.
The character of upper/lower PV are analyzed based on PV anomaly with the genesis and development of cyclone, with results that low-level PV anomaly (LPVA), which is isolated from upper PV anomaly and has a leading/simultaneous current relative to cyclone, will grow upward, join with upper level downward PV anomaly, form PV anomaly column (PVAC) under available conditions.
从湿位涡的扰动量出发,来分析气旋发展过程中高低空位涡的变化,结果表明:低层位涡扰动先于气旋并孤立于高层位涡扰动而存在,在气旋发生过程中,低层正值位涡扰动发展上伸,与高层下传的位涡相接,形成一条正值位涡扰动柱,而湿位涡扰动柱的形成正是气旋发生的重要标志。
4) disturbance of low-wind field
低层风场扰动
5) Disturb source vortex
扰动源涡
1.
In summer, the distribution of rain belt over East was controlled by the last winter position of Disturb source vortex over West China, during 85°E to 105°E latitude.
我国西部 (85°10 5°E)冬季“扰动源涡”的位置对夏季东部雨带的配置具有支配作用。
6) disturbance vortex
扰动涡
补充资料：扰动位
见地球重力场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条