Generation of inertia-gravity waves by pulsating lens-like axisymmetric vortices

Abstract

We consider interactions between the two most important components of the atmosphere and ocean dynamics: slowly evolving vortical motion and inertia-gravity waves in rotating stratified axisymmetric flows. Any steady axisymmetric solution for a finite volume anticyclonic vortex with outcropping isopycnals is known to correspond to a set of self-similar analytical time-periodic pulson solutions assuming flows in surrounding fluid is negligible. Here we analyze the flow patterns generated in homogeneous fluid below stratified pulsating lens-like vortex and its feedback on the upper layer vortex.