Gravity waves produced by potential vorticity anomalies

François Lott (1) , Riwal Plougonven (1) , Jacques Vanneste (2)

1 LMD - Laboratoire de Météorologie Dynamique (UMR 8539)
2 School of Mathematics - Operational Research and Optimization

The gravity waves (GWs) produced by potential vorticity (PV) anomalies in a vertical wind shear are evaluated for an unbounded rotating stratified flow. In this set-up, the disturbances have two inertial layers, one on each side of the PV anomaly that produces them. Between these layers the disturbance is well predicted by the quasi-geostrophic theory, beyond these layers it corresponds to propagating GWs.

Domaines: Océan, Atmosphère

François Lott, Riwal Plougonven, Jacques Vanneste. Gravity waves produced by potential vorticity anomalies. Symposium OGOA, May 2013, Lyon, France. ⟨hal-00840922⟩