Juptier's Great Red Spot: Compactness condition and stability

Details Juptier's Great Red Spot: Compactness condition and stability Juptier's Great Red Spot: Compactness condition and stability

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994angeo..12....1y&link_type=abstract

Annales Geophysicae: Atmospheres, Hydrospheres and Space Sciences, vol. 12, no. 1, p. 1-18

Astronomy and Astrophysics

Astronomy

7

Baroclinic Waves, Flow Stability, Jupiter Red Spot, Rossby Regimes, Zonal Flow (Meteorology), Astronomical Models, Atmospheric Stratification, Computerized Simulation, Jupiter Atmosphere, Vortices, Jupiter, Atmosphere, Great Red Spot, Stability, Hypotheses, Flow, Depth, Baroclinicity, Eddy Flow, Dynamics, Layers, Coupling, Decay, Convection, Vorticity, Theoretical Studies, Calculations, Simulation, Numerical Methods, Parameters, Models, Zones, Shear, Dissipation

Scientific paper

Linear Rossby wave dispersion relationships suggest that Jupiter's Great Red Spot (GRS) is a baroclinic structure embedded in a barotropic shearing zonal flow. Quasi-Geostrophic (QG) two-layer simulations support the theory, as long as an infinitely deep zonal flow is assumed. However, once a finite depth of the lower layer is assumed, a self-interaction of the baroclinic eddy component produces a barotropic radiating field, so that the GRS-like eddy can no longer remain compact. Compactness is recovered by explicitly introducing a deep dynamics of the interior for the lower layer, instead of the shallow QG formulation. An implication of the result is a strong coupling of the GRS to a convectively active interior.

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