In this paper, the KdV equations of Rossby wave in barotropic fluid are derived from barotropic quasi-geostrophic vorticity equation by using weakly nonlinear method. 本文在均质流体准地转位涡方程的基础上,用弱非线性方法求解了正压流体中Rossby孤立波的KdV方程。
A quasi-geostrophic barotropic vorticity equation model is used to simulate the influences of topographic forcing and land friction on landfall tropical cyclone track and intensity. 采用准地转正压涡度方程模式,对地形强迫和陆地摩擦作用下登陆热带气旋的路径和强度进行了模拟研究。
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. 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。
The quasi-geostrophic potential vorticity equation used in this paper is linearized under the conditions that the basic atmospheric currents vary gradually with time and space. 本文用准地转位势涡度方程,在基本气流随时空缓变的条件下将其线性化。
A diagnostic study of the average characteristics and maintenance mechanism of the blocking situation in East Asia during the drought period in summer of 1980 ( 1 July & 10 September ) hasbeen made by use of quasi-geostrophic potential vorticity equation. 本文用准地转位涡对1980年夏季(7月1日&9月10日)华北干旱时期东亚阻塞形势的平均特征及其维持机制进行了诊断分析。