Diurnal and seasonal variations of ionospheric plasma parameters at maximum solar activity period

Heading: 
Space and Atmospheric Physics
1Lyashenko, MV, 2Chernogor, LF, 3Chernyak, Yu.V
1Institute of Ionosphere of the NAS of Ukraine and MES of Ukraine, Kharkiv, Ukraine
2V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
3Institute of Ionosphere of the National Academy of Sciences of Ukraine and Ministry for Education and Sciences of Ukraine, Kharkiv, Ukraine
Kosm. nauka tehnol. 2006, 12 ;(4):056-070
https://doi.org/10.15407/knit2006.04.056
Publication Language: Russian
Abstract: 
We consider diurnal and seasonal variations of the main ionospheric plasma parameters (electron density, ion temperature, electron temperature, vertical component of plasma transfer velocity) for four characteristic geophysical periods (winter and summer solstices, vernal and autumnal equinoxes) near the solar activity maximum in 2000–2002 in the height range of 110 to 1030 km. For the periods under consideration, a theoretical simulation of dynamic processes in the ionosphere is carried out. Some region features of the main ionospheric parameter distribution are revealed and confirmed. Our results will be used for regional ionospheric model development. 
Keywords: geophysical periods, ionospheric plasma, variations
Full text (PDF)
 
References: 
1. Brjunelli B. E., Namgaladze A. A. Ionospheric physics, 528 p. (Nauka, Moscow, 1988) [in Russian].
2. Ginzburg V. L. Propagation of Electromagnetic Waves in Plasma, 564 p. (Nauka, Moscow, 1967) [in Russian].
3. Grigorenko Ye. I., Lysenko V. N., Taran V. I., Chernogor L. F. Results of radiophysical studies of the processes in the ionosphere accompanying the very strong magnetic storm on 25 September 1998. Uspehi sovremennoj radiojelektroniki, No. 9, 57—94 (2003) [in Russian].
4. Dzyubanov D. A., Zakharov I. G., Lyashenko M. V. The simulation of noon electron density values of the F2 ionospheric peak with the use of Kharkiv incoherent scatter radar data use of the Doppler high-frequency radar. Kosm. nauka tehnol., 10 (2-3), 28—35 (2004) [in Russian].
5. Dzyubanov D. A., Zakharov I. G., Lyashenko M. V. Modeling of electron concentration at the maximum of the F2 ionosphere region according to the data of the incoherent scattering radar in Kharkov. In: Propagation of radio waves: Materials of XXI All-Russian Sci. Conf., 190—193 (Yoshkar-Ola, 2005) [in Russian].
6. Emel'yanov L. Ya., Grigorenko E. I., Sklyarov I. B. Radio-physical observations of vertical plasma drift in the F region of the ionosphere on the Kharkov non-coherent scattering radar. Radiotehnika: Vseukr. mezhved. nauch.-tehn. sb., Is. 136, 102—108 (2004) [in Russian].
7. Zakharov I. G., Lyashenko M. V. Comparison of Experimental and Model Values of Total Electron Content in Ionosphere over Eastern Europe. Radio Physics and Radio Astronomy, 8 (3), 280—286 (2003) [in Russian].
8. Ivanov-Kholodny G. S.,  Mikhailov A.V. Prediction of the State of the Ionosphere, 190 p. (Gidrometeoizdat, Leningrad, 1980) [in Russian].
9. Avdyushin S. I., Danilov A. D. (Eds.) Ionospheric–Magnetic Service. Current state, problems and perspectives, 243 p. (Gidrometeoizdat, Leningrad, 1987) [in Russian].
10. Lysenko V. N. Measuring the vertical component of the plasma-drift velocity and kinetic temperatures in the ionosphere. Geomagnetizm i Aeronomiia, 41 (3), 365—368 (2001) [in Russian].
11. Lyashenko M. V., Sklyarov I. B., Chernogor L. F., Chernyak Yu. V. Diurnal and seasonal variations of ionospheric plasma parameters on solar activity abatement. Kosm. nauka tehnol., 12 (2-3), 45—58 (2006) [in Russian].
12. Mikhailov A. V., Boenkova N. M. Asymmetry of annual variations of the F2 region in the Northern and Southern Hemispheres. Geomagnetizm i Aeronomiia, 20 (2), 251—254 (1980) [in Russian].
13. Mikhailov A. V., Ostrovskii G. I. Winter increase in electron density in the nighttime F2 region and its possible explanation. Geomagnetizm i Aeronomiia, 20 (1), 29—32 (1980) [in Russian].
14. Rishbath H., Garriott O.K. Introduction to Ionospheric Physics, 304 p. (Gidrometeoizdat, Leningrad, 1975) [in Russian].
15. Taran V. I. A study of the natural and artificially disturbed ionosphere by the incoherent scatter method. Geomagnetizm i Aeronomiia, 41 (5), 659—666 (2001) [in Russian].
16. Chernogor L. F. Physics of Earth, Atmosphere, and Geospace from the Standpoint of System Paradigm. Radio Physics and Radio Astronomy, 8 (1), 59—104 (2003) [in Russian].
17. Bhuyan P. K., Chamua M., Subrahmanyam P., Garg S. C. Diurnal, seasonal and latitudinal variations of electron temperature measured by the SROSS C2 satellite at 500 km altitude and comparison with the IRI. Ann. Geophys., 20, 807—815 (2002).
https://doi.org/10.5194/angeo-20-807-2002
18. Bilitza D. International Reference Ionosphere 2000. Radio Sci., 36 (2), 261—275 (2001).
https://doi.org/10.1029/2000RS002432
19. Champion K. S. W. Dynamics and structure of the quiet thermosphere. J. Atmos. and Terr. Phys., 37 (6-7), 915—926 (1975).
https://doi.org/10.1016/0021-9169(75)90006-9
20. Evans J. V. Seasonal and sunspot cycle variations of F-region electron temperatures and protonospheric heat fluxes. J. Geophys. Res., 78 (13), 2344 (1973).
https://doi.org/10.1029/JA078i013p02344
21. Farelo A. F., Herraiz M., Mikhailov A. V. Global morphology of night-time NmF2 enhancements. Ann. Geophys., 20, 1795—1806 (2002).
https://doi.org/10.5194/angeo-20-1795-2002
22. Hedin A. E. MSIS-86 thermospheric model. J. Geophys. Res., 92, 4649—4662 (1987).
https://doi.org/10.1029/JA092iA05p04649
23. Mikhailov A. V., Schlegel K. Equinoctial transitions in the ionosphere and thermosphere. Ann. Geophys., 19, 783—796 (2001).
https://doi.org/10.5194/angeo-19-783-2001
24. Nisbet J. S. Models of the ionosphere, 245—258 (The Penn. State Univ., Ionospheric Res. Lab., 1974).
25. Richards P. G. Seasonal and solar cycle variations of the ionospheric peak electron density: Comparison of measure­ment and models. J. Geophys. Res., 106 (A7), 12803—12819 (2001).
https://doi.org/10.1029/2000JA000365
26. Rishbeth H., Sedgemore-Schulthess K. J. F., Ulich T. Annual and semiannual variations in the ionospheric F2-layer: II. Physical discussion. Ann. Geophys., 18, 945—956 (2000).
https://doi.org/10.1007/s00585-000-0945-6
27. Salah J. E., Evans J., Wand R. N. Seasonal variations in the thermosphere above Millstone Hill. Radio Sci., 9 (2), 231—238 (1974).
https://doi.org/10.1029/RS009i002p00231
28. Schunk R. W., Nagy A. F. Ionospheres: Physics, plasma physics, and chemistry, 555 p. (Cambridge Atmospheric and Space Sci. Ser.) (Cambridge, 2000).
https://doi.org/10.1017/CBO9780511551772
29. Sethi N. K., Dabas R. S., Vohra V. K. Diurnal and seasonal variations of hmF2 deduced from digital ionosonde over New Delhi and its comparison with IRI 2001. Ann. Geophys., 22, 453—458 (2004).
https://doi.org/10.5194/angeo-22-453-2004

30. Zang S., Holt J. M., Zalucha A. M. Midlatitude ionospheric plasma temperature climatology and empirical model based on Saint Santin incoherent scatter radar data from 1966 to 1987. J. Geophys. Res., 109 (A11), 311 (2004).