Thermal structure and dynamics of the Jovian atmosphere. II - Visible cloud features

Details Thermal structure and dynamics of the Jovian atmosphere. II - Visible cloud features Thermal structure and dynamics of the Jovian atmosphere. II - Visible cloud features

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.8769c&link_type=abstract

Journal of Geophysical Research, vol. 86, Sept. 30, 1981, p. 8769-8775.

Physics

64

Atmospheric Circulation, Atmospheric Temperature, Cloud Cover, Jupiter Atmosphere, Temperature Gradients, Anticyclones, Atmospheric Models, Dynamic Characteristics, Temperature Distribution, Vertical Motion, Vorticity, Voyager Project, Wind Shear, Jupiter, Atmosphere, Thermal Properties, Mixing, Dynamics, Temperatures, Clouds, Features, Voyager 1, Iris, Infrared Interferometer Spectrometer, Troposphere, Circulation, Winds, Vortex, Stratosphere, Velocity, Data, Perturbations, Observations, Imagery, Structure

Scientific paper

Thermal structures including major white ovals, hot spot regions, barges and a belt zone pair in the Jovian atmosphere are investigated using Voyager IRIS data. Atmosphere above anticyclonic features is cold relative to the immediate surroundings in the upper troposphere and tropopause region, which is consistent with upwelling and divergence in that part of the atmosphere. Localized cyclonic features are warm relative to their surroundings which implies subsidence with accompanying convergence. Thermal wind shear indicates a decay of the vorticity with height in the upper troposphere and lower stratosphere, and vertical velocities imply an upper limit of vertical mixing times near the tropopause of about 20 years. Various possible models are also examined, including radiative heating, vertical wave propagation, and thermally indirect merdional cells.

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