A Review of the Symmetric Instability Theory and Its Application—PartⅡ: Non-linear Theory

The present paper has comprehensively reviewed the state of symmetric instability theory and its application to mesoscale meteorology. Here is its part 2 which mainly deals with the nonlinear theory. It includes the general approach to study of nonlinear symmetric instability and the stability of the steady, two-dimensional non-linear symmetric circulation. Finally, the differences in application between the non-linear and linear theories are discussed