Dissipationless decay of Jovian jets

Details Dissipationless decay of Jovian jets Dissipationless decay of Jovian jets

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...79..196p&link_type=abstract

Icarus (ISSN 0019-1035), vol. 79, May 1989, p. 196-207.

Physics

7

Atmospheric Models, Jet Streams (Meteorology), Jupiter (Planet), Planetary Meteorology, Wind Shear, Atmospheric Circulation, Dynamic Models, Zonal Flow (Meteorology), Jupiter, Decay, Jets, Iris Instrument, Altitude, Models, Dissipation, Atmosphere, Stratosphere, Troposphere, Parameters, Temperature, Zoning, Flow, Voyager Mission, Spacecraft Observations, Diagrams, Evolution, Calculations, Perturbations, Velocity, Eddies, Dynamics

Scientific paper

IRIS data have been taken as the bases of windshear calculations whose results imply a decrease of the Jovian planet's zonal jets with altitude. The simplified dynamical model developed to furnish a mechanism accounting for the decay involves a highly truncated set of dissipationless equations simulating the upper-tropospheric and stratospheric flow. While the model's lower boundary is constrained as a latitudinally periodic set of alternating jets, the upper boundary constraint maintains a constant potential temperature. The small perturbations to which the imposed zonal jets are unstable grow and interact nonlinearly, generating a zonal flow that opposes the imposed one and thereby leading to the apparent decrease of the jets with altitude.

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