Thermal structure and dynamics of the Jovian atmosphere. 2: Visible cloud features

Details Thermal structure and dynamics of the Jovian atmosphere. 2: Visible cloud features Thermal structure and dynamics of the Jovian atmosphere. 2: Visible cloud features

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8125017c&link_type=abstract

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Computer Science

Atmospheric Temperature, Clouds, Jupiter Atmosphere, Temperature Gradients, Vertical Distribution, Voyager Project, Adiabatic Conditions, Equations Of Motion, Infrared Spectra, Jupiter Red Spot, Vortices, Wind Shear

Scientific paper

Voyager IRIS data reveal strong similarities among a broad range of features which differ considerably in visual appearance. The atmosphere above anticyclonic features, including the major white ovals, the Great Red Spot, and a zone, are cold relative to the immediate surroundings in the upper troposphere and tropopause region. These results are consistent with upwelling and divergence in this part of the atmosphere. A hot spot and a barge, which are localized cyclonic features, are found to be warm relative to their surroundings, implying subsidence with accompanying convergence. In all cases, the thermal wind shear associated with the features indicates a decay of the vorticity with height in the upper troposphere and lower stratosphere. Vertical velocities inferred from the observed temperature perturbations imply an upper limit of vertical mixing times near the tropopause of approximately 20 years. Temperatures in the upper stratosphere above the anticyclonic features show considerable variation, but in most cases are found to be relatively warm.

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