Abstract Models of the Venus neutral upper atmosphere, based on both in-situ and remote sensing measurements, are provided for the height interval from 100 to 3,500 km. The general approach in model formulation was to divide the atmosphere into three regions: 100 to 150 km, 150 to 250 km, and 250 to 3,500 km. Boundary conditions at 150 km are consistent with both drag and mass spectrometer measurements. A paramount consideration was to keep the models simple enough to be used conveniently. Available observations are reviewed. Tables are provided for density, temperature, composition (CO2, O, CO, He, N, N2, and H), derived quantities, and day-to-day variability as a function of solar zenith angle on the day- and nightsides. Estimates are made of other species, including O2 and D. Other tables provide corrections for solar activity effects on temperature, composition, and density. For the exosphere, information is provided on the vertical distribution of normal thermal components (H, O, C, and He) as well as the hot components (H, N, C, O) on the day- and nightsides.


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    Titel :

    Models of Venus neutral upper atmosphere: Structure and composition


    Beteiligte:
    Keating, G.M. (Autor:in) / Bertaux, J.L. (Autor:in) / Bougher, S.W. (Autor:in) / Dickinson, R.E. (Autor:in) / Cravens, T.E. (Autor:in) / Nagy, A.F. (Autor:in) / Hedin, A.E. (Autor:in) / Krasnopolsky, V.A. (Autor:in) / Nicholson, J.Y. III (Autor:in) / Paxton, L.J. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 5 , 11 ; 117-171


    Erscheinungsdatum :

    1985-01-01


    Format / Umfang :

    55 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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