Linear properties of eddies in a Jovian troposphere forced by deep jets

Details Linear properties of eddies in a Jovian troposphere forced by deep jets Linear properties of eddies in a Jovian troposphere forced by deep jets

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16.1245o&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Nov. 1989, p. 1245-1248.

Physics

4

Cloud Cover, Eddy Currents, Jets, Jupiter Atmosphere, Vortices, Troposphere, Voyager Project

Scientific paper

A linear quasi-geostrophic beta-plane model is used to study large-scale instabilities of the Jovian upper troposphere forced from below by zonal jets. The jets are presumed to be barotropically stable in the isentropic deep interior, but barotropically unstable in the statically stable upper troposphere. The effect on this barotropic instability of weak vertical shear causing the jets to decay with height is examined. It is found that eastward jets are stabilized by weaker shear than westward jets, the most unstable eddies are strongly confined by the shear, and eddy fluxes contribute to vertical decay of the jets. The lower residual mean meridional circulation cells exhibit rising motion in regions of anticyclonic shear, but these are overlain by reverse cells.

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