Computer Science
Scientific paper
May 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...54..309w&link_type=abstract
(Saturn Conference, Tucson, AZ, May 11-15, 1982) Icarus (ISSN 0019-1035), vol. 54, May 1983, p. 309-318.
Computer Science
34
Albedo, Atmospheric Composition, Iue, Saturn Atmosphere, Stratosphere, Absorptivity, Atmospheric Models, Reflectance, Solar Spectra, Saturn, Composition, Stratosphere, Atmosphere, Iue, Ultraviolet, International Ultraviolet Explorer, Wavelengths, Spectra, Albedo, Computer Programs, Models, Comparisons, Mixing Ratios, Distribution, Hydrocarbons, Voyager Missions, Iris, Phosphine, Absorption, Water, Equipment
Scientific paper
Ultraviolet spectra of Saturn from the IUE satellite was reduced to produce a geometric albedo of the planet from 1500 to 3000 A. By matching computer models to the albedo a chemical composition consistent with the data was determined. This model includes C2H2 and C2H6 with mixing ratios and distributions of 9 + or - 3 x 10 to the -8th in the top 20 mbar of the atmosphere with none below for C2H2 and 6 + or 1 x 10 to the -6th also in the top 20 mbar with none below for C2H6. The C2H2 and C2H6 distributions and the C2H6 mixing ratio are taken directly from the Voyager IRIS model (R. Courtin et al., 1981). The Voyager IRIS model also includes PH3, which is not consistent with the UV albedo from 1800 to 2400 A. This model requires a previously unidentified absorber to explain the albedo near 1600 A. After considering several candidates, it is found that the best fit to the data is obtained with H2O, having a column density of 6 + or - 1 x 10 to the -3 cm-am.
Caldwell J. Jr. J.
Combes Michel
Hunt Garry E.
Kim Jai Sam
Moore V.
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