Physics
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cosre..42..210s&link_type=abstract
Cosmic Research, v. 42, Issue 3, p. 210-218 (2004).
Physics
4
Scientific paper
Spatial distributions of the electron density in the latitude range 60°-90° N were calculated on the basis of a physical model of the E and lower F regions of the high-latitude ionosphere using statistical models of auroral proton and electron precipitation. It is shown that precipitating protons can play the key role in the ionization of the E region in the dusk and midnight sectors of the auroral oval. However, quantitative estimates of the contribution of protons to the ionization depend on the used statistical models of electron precipitation. Comparison of the electron density profiles calculated for two incoherent scatter radars, EISCAT (Tromsö) and ESR (Svalbard), for simultaneous precipitation of electrons and protons and for electron precipitation only show that the influence of protons is the most significant in the dusk sector over the EISCAT radar and in the midnight sector over the ESR radar. The results presented indicate the need to take protons into account when radar data are used to derive precipitating electron spectra.
Lyakhov A. N.
Meng Ching I.
Osepian A. P.
Setzer Yu. I.
Smirnova N. V.
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