Thermal structure of Saturn from Voyager infrared measurements - Implications for atmospheric dynamics

Details Thermal structure of Saturn from Voyager infrared measurements - Implications for atmospheric dynamics Thermal structure of Saturn from Voyager infrared measurements - Implications for atmospheric dynamics

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...53..286c&link_type=abstract

(Saturn Conference, Tucson, AZ, May 11-15, 1982.) Icarus, vol. 53, Feb. 1983, p. 286-292.

Astronomy and Astrophysics

Astronomy

76

Atmospheric Circulation, Atmospheric Temperature, Infrared Astronomy, Planetary Temperature, Saturn Atmosphere, Voyager Project, Infrared Spectrometers, Jet Streams (Meteorology), Meridional Flow, Temperature Gradients, Troposphere, Wind Shear, Saturn, Thermal Properties, Structure, Voyager 1, Voyager 2, Infrared, Atmosphere, Dynamics, Temperature, Iris, Infrared Radiometer Spectrometer, Analysis, Images, Circulation, Winds, Seasonal Variations, Insolation, Gradients, Decay, Flow, Asymmetry

Scientific paper

Saturn atmospheric temperatures at the 150-mbar level retrieved from Voyager IRIS measurements indicate the presence of small-scale meridional gradients which are approximately symmetric with respect to the equator, but are superposed on a large-scale hemispheric thermal asymmetry. Under the assumption that the retrieved values at this atmospheric level represent kinetic temperatures on a constant pressure surface, it is suggested that the small-scale structure is produced by a meridional circulation associated with the dissipative decay of the zonal winds with height, while the hemispheric asymmetry represents a thermal response to the seasonally varying insolation.

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