Generation and Structure of Solitary Rossby Vortices in Rotating Fluids

Details Generation and Structure of Solitary Rossby Vortices in Rotating Fluids Generation and Structure of Solitary Rossby Vortices in Rotating Fluids

1996-07-31

arxiv.org/abs/chao-dyn/9607018v1

Nonlinear Sciences

Chaotic Dynamics

3 pages in REVTeX, 5 postscript figures separately, submitted to Phys. Rev. E

Scientific paper

10.1103/PhysRevE.54.R4524

The formation of zonal flows and vortices in the generalized Charney-Hasegawa-Mima equation is studied. We focus on the regime when the size of structures is comparable to or larger than the deformation (Rossby) radius. Numerical simulations show the formation of anticyclonic vortices in unstable shear flows and ring-like vortices with quiescent cores and vorticity concentrated in a ring. Physical mechanisms that lead to these phenomena and their relevance to turbulence in planetary atmospheres are discussed.

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