Analytical yield spectrum approach to photoelectron fluxes in the earth's atmosphere

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Earth Atmosphere, Electron Flux Density, Photoelectrons, Scattering Cross Sections, Electron Scattering, Extreme Ultraviolet Radiation, Inelastic Scattering, Solar Radiation

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The analytical yield spectrum approach has been applied to calculate the photoelectron fluxes in the earth's atmosphere. The results have been compared with the experimental data of Lee et al. (1980a, b). Good agreement is obtained at low altitudes. At high altitudes theoretical results are lower than the experimental data in the energy region 18-23 eV by a factor of 1.5 and in the 35-45 eV by a factor of 2. Comparison with theoretical calculations performed by other workers shows that if the same set of inelastic electron impact cross sections had been used, then the photoelectron models of Strickland and Anderson (1983) and Richards and Torr (1983) would be in good agreement with the present work and with the experimental data. However, the photoelectron fluxes calculated by the model of Victor et al. (1976) are not consistent with the other theoretical models or the experimental data.

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