Uranus deep atmosphere revealed

Details Uranus deep atmosphere revealed Uranus deep atmosphere revealed

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...82..288d&link_type=abstract

Icarus (ISSN 0019-1035), vol. 82, Dec. 1989, p. 288-313. Research supported by the Alfred P. Sloan Foundation.

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Atmospheric Chemistry, Atmospheric Composition, Brightness Temperature, Radio Spectra, Uranus Atmosphere, Atmospheric Circulation, Atmospheric Models, Atmospheric Sounding, Methane, Mixing Height, Planetary Evolution

Scientific paper

The present examination of the radio spectrum and latitudinal radio brightness temperature variation of Uranus leads to a ejection of thermochemical equilibrium models and the adoption of an atmospheric model characterized by a low ammonia volume-mixing ratio that is uniformly distributed over a wide altitude range. The elemental ratios derivable from this model support the planetary accretion theory of Pollack and Bodenheimer (1989). It is noted that while the equatorial and midlatitude values of Uranian radio brightness temperature are explainable by condensation theories, the polar value can only be accounted for through the invocation of strong, dry air downdrafts.

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