Diurnal and seasonal variations of ionospheric plasma parameters on solar activity abatement

1Lyashenko, MV, 1Sklyarov, IB, 2Chernogor, LF, 1Chernyak, Yu.V
1Institute of Ionosphere of the National Academy of Sciences of Ukraine and Ministry for Education and Sciences of Ukraine, Kharkiv, Ukraine
2V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
Kosm. nauka tehnol. 2006, 12 ;(2-3):045-058
Publication Language: Russian
Diurnal and seasonal variations of ionospheric plasma parameters in the height range of 190 to 1030 km for four characteristic geophysical periods (winter and summer solstices, vernal and autumnal equinoxes) are considered. As expected, ionospheric parameters exhibit significant seasonal and diurnal variations. Region features in diurnal and seasonal electron density as well as in ion and electron temperature dependences are revealed or confirmed. Computer simulation of dynamic processes parameters variations in ionosphere is performed. Our results will be used for the development of ionospheric model elements for the Central Europe region.
Keywords: geophysical periods, ionospheric plasma, variations
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