The Rossby autosoliton and a laboratory model of the Jupiter Red SPOT

Details The Rossby autosoliton and a laboratory model of the Jupiter Red SPOT The Rossby autosoliton and a laboratory model of the Jupiter Red SPOT

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985zhetf..89.1905a&link_type=abstract

Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki (ISSN 0044-4510), vol. 89, Dec. 1985, p. 1905-1920. In Russian.

Astronomy and Astrophysics

Astronomy

3

Astronomical Models, Jupiter Red Spot, Planetary Waves, Solitary Waves, Centrifugal Force, Flow Distribution, Flow Stability, Rotating Fluids, Saturn Atmosphere

Scientific paper

A novel hydrodynamic structure has been observed experimentally: the Rossby autosoliton (RAS), which is an undamped solitary vortex that is self-organized in axisymmetric zonal counterflows in a rotating parabolic 'shallow water' layer and is sustained by the flows. The RAS can be considered as a stationary model of the Jupiter Red Spot; the autosoliton is produced by a centrifugal instability which arises in differentially rotating shallow water when the central part of the liquid rotates at a higher velocity. The RAS model provides a natural explanation of the drift of natural vortices in the atmospheres of Jupiter and Saturn, and of their cyclonic-anticyclonic asymmetry.

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