地转涡度
- 网络geostrophic vorticity
地转涡度-
对流层低层非地转涡度的强烈发展是β中尺度气旋形成的重要原因。
The rapid development of ageostrophic vorticity in the lower troposphere is the major factor responsible for the formation of the meso - β scale cyclone .
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中尺度降水区分别与非地转风涡度极值密集区相对应。
Maximum areas of ageostrophic vorticity of upper air jet correspond to mesoscale terrain .
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从含Ekman摩擦的二层非线性准地转斜压涡度方程出发，提出了一种新的广义能量作为Lyapunov函数，导出了非线性斜压亚临界稳定性判据。
Starting from a two-layer nonlinear quasi-geostrophic baroclinic vorticity equation containing Ekman friction , a new generalized energy is proposed to act as Lyapunov function and thus a new criterion of nonlinear baroclinic subcritical instability containing two inequalities is obtained .