Comments on stubbe's deviations from the barometric law |
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| Authors: | Peter W Blum |
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| Institution: | Institut für Astrophysik und Extraterrestrische Forschung, Universität Bonn, 53 Bonn, W. Germany |
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| Abstract: | An approximation for the height distribution of nitrogen and atomic oxygen in the thermosphere between 120 and 500 km is obtained by the assumption that these constituents are in diffusive equilibrium. The horizontal wind system in the thermosphere may cause deviations from the diffusive equilibrium distribution due to the non-zero divergence of the horizontal flow and the vertical mass motion associated with it. Stubbe has examined this problem and deduced considerable deviations from diffusive equilibrium due to this effect. The problem is re-examined here, and it is shown that there exist arguments that the deviations from diffusive equilibrium due to horizontal wind fields are not as large as suggested by Stubbe. |
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