Study of the deep cloud structure in the equatorial region of Jupiter from Voyager infrared and visible data

Details Study of the deep cloud structure in the equatorial region of Jupiter from Voyager infrared and visible data Study of the deep cloud structure in the equatorial region of Jupiter from Voyager infrared and visible data

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...54..434b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 54, June 1983, p. 434-455.

Physics

43

Ammonia, Cloud Cover, Equatorial Atmosphere, Jupiter Atmosphere, Voyager 1 Spacecraft, Atmospheric Windows, Infrared Spectra, Spatial Resolution, Thermal Emission, Thermochemistry, Jupiter, Clouds, Structure, Equatorial Regions, Voyager 1, Infrared, Wavelengths, Light(Visible), Analysis, Troposphere, Pressure, Models, Iris, Scattering, Observations, Ammonia, Spectra, Temperature

Scientific paper

High spatial resolution infrared and visible data obtained by the Voyager 1 spacecraft have been analyzed simultaneously to infer properties of the deep cloud structure of the Jovian troposphere in the 1- to 4-bar pressure range. The main conclusions are: (1) the deep cloud structure appears to be vertically associated with the NH3 upper layer; (2) the ammonia cloud is mainly responsible for the visible appearance of the Jovian equatorial region; (3) the deep cloud structure exhibits a grey opacity in the 5-μm window; (4) coldest 5-μm spectra can be interpreted by the existence of a thick cloud layer located at levels in the 180-195K temperature range. Implications of these results are discussed in conjunction with predictions of dynamical and thermochemical models. NH4SH is shown to be a likely candidate for the main deep cloud constituent. An even deeper thick H2O cloud may be present, too.

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