This thesis aims to study the nonlinear stability of quasi-geostrophic flow. This paper is divided into three parts.
本文旨在对地球流体准地转运动的非线性稳定性问题进行研究，全文分为三个部分。
The selection of level of no motion is a basic problem in calculating the geostrophic flow in the East China Sea Kuroshio area.
零流面的选取是东海黑潮地转流计算中的一个基本问题。
Using a low order, two-layer baroclinic quasi-geostrophic model, a nonlinear system including the interaction between a thermal forced wave, a transient wave and zonal flow is studied.
本文利用两层斜压准地转模式，在低谱简化下，得到一个热力强迫波，瞬变波与纬向气流相互作用的非线性方程组。
Using a low order, two-layer baroclinic quasi-geostrophic model, a nonlinear system including the interaction between a thermal forced wave, a transient wave and zonal flow is studied.
本文利用两层斜压准地转模式，在低谱简化下，得到一个热力强迫波，瞬变波与纬向气流相互作用的非线性方程组。
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