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The atmospheric structure and dynamical properties of Neptune derived from ground-based and IUE spectrophotometryA wide range of recent full-disk spectral observations is used to constrain the atmospheric structure and dynamical properties of Neptune; analytical determinations are made of the abundances of such spectrally active gas species as the deep-atmosphere CH4 molar fraction and the mean ortho/para hydrogen ratio in the visible atmosphere, as well as stratospheric and tropospheric aerosol properties. Compared to Uranus, the greater abundance and shorter lifetimes of Neptunian particulates in the stratospheric region irradiated by the solar UV flux indicate that such radiation is the darkening agent of stratospheric aerosols on both planets.
Document ID
19900047950
Document Type
Reprint (Version printed in journal)
Authors
Baines, Kevin H.
(JPL Pasadena, CA, United States)
Smith, Wm. Hayden
(Washington University Saint Louis, MO, United States)
Date Acquired
August 14, 2013
Publication Date
May 1, 1990
Publication Information
Publication: Icarus
Volume: 85
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Funding Number(s)
CONTRACT_GRANT: NSG-7334
Distribution Limits
Public
Copyright
Other
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