The Evolution of a Nonlinear Critical Level
The evolution of inviscid forced Rossby waves on a parallel flow in the presence of a critical layer is discussed. It is shown that the transient critical layer becomes nonlinear after sufficient time has elapsed and that the “− π” logarithmic phase shift is modified accordingly. All harmonics are found to be important in the nonlinear range, even outside the critical layer.
No Supplementary Data
No Article Media
Document Type: Research Article
Publication date: July 1, 1978