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Chabrillat & Kockarts 1997
Chabrillat, S. and Kockarts, G. (1997). Simple parameterization of the absorption of the solar Lyman-alpha line. Geophysical Research Letters 24: doi: 10.1029/97GL52690. issn: 0094-8276.

The absorption of the solar Lyman-alpha line by the terrestrial atmosphere is calculated, taking in account the wavelength variations of the emission line and of the O2 cross-section, as well as the temperature dependence of the cross-section. A new parameterization is developed to reproduce in atmospheric models the results of this high-resolution calculation, up to an attenuation of 1010 for the incident solar radiation. The error made in most of existing models when computing the Lyman-alpha contribution to photodissociation rates in the middle atmosphere, using a constant O2 cross-section of 10-20 cm2, is shown to be important and this can affect the loss rate of mesospheric constituents such as H2O or CH4.¿ 1997 American Geophysical Union

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Abstract

Keywords
Atmospheric Composition and Structure, Atmospheric Composition and Structure, Middle atmosphere—composition and chemistry, Atmospheric Composition and Structure, Transmission and scattering of radiation, Solar Physics, Astrophysics, and Astronomy, Solar irradiance
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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