Modelling of the electron density profile in the lowest part of ionosphere D-region on the basis of radiowave absorption data. 1. Theoretical model.

Details Modelling of the electron density profile in the lowest part of ionosphere D-region on the basis of radiowave absorption data. 1. Theoretical model. Modelling of the electron density profile in the lowest part of ionosphere D-region on the basis of radiowave absorption data. 1. Theoretical model.

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jatp...58.1721m&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, Vol. 58, No. 15, p. 1721 - 1727

Physics

2

Earth Ionosphere: Electron Densities, Earth Ionosphere: D Region, Earth Ionosphere: Models

Scientific paper

A simplified full-wave method adapted to the propagation of very obliquely incident LF radio waves is developed. For a selected ionosphere model the wave-field structure is calculated inside a horizontally stratified ionosphere and the peculiarities of the reflected field are clearly described. The penetration of the investigated radio waves in the lower ionosphere at noon-time is found to be restricted to a layer several wavelengths thick. The reflected wave is created entirely by the mechanism of partial reflections and the region responsible for its formation is usually below 70 km. The influence of some typical parameters of the electron density profile, as well as the atmospheric pressure and temperature, on the attenuation of the investigated radio waves is demonstrated. It is also found that the reflection at very oblique incidence depends mainly on the height of the bottom of the ionosphere.

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