Variations of Mf radio noise over Kharkiv region during the solar eclipse on 1 august 2008

1Panasenko, SV, 2Chernogor, LF
1V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
2V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
Kosm. nauka tehnol. 2009, 15 ;(6):20-27
https://doi.org/10.15407/knit2009.06.020
Publication Language: Russian
Abstract: 
We analyzed some variations in MF radio noise intensities as well as in the parameters of wave disturbances during the period when the solar eclipse (SE) occurred and during daytime periods without a SE. A factor of up to four decrease in the radio noise intensity observed during the SE was probably caused by global-scale magnetospheric electron precipitation induced by the SE. Our estimates of precipitating particle flux parameters are presented. The amplification of wave disturbances with periods from 8 to 50‒55 minutes and relative amplitudes from 0.02 to 0.04 is shown to take place during the SE.
Keywords: amplitude, periods, wave disturbances
References: 
1. Adushkin V. V., Gavrilov B. G., Gorelyi K. I., et al. Geophysical effects of the March 29, 2006, solar eclipse. Doklady AN, 417 (4), 535—540 (2007) [in Russian].
https://doi.org/10.1134/S1028334X07090218
2. Akimov A. L., Akimov L. A., Chernogor L. F. Turbulence Parameters in the Atmosphere Associated with Solar Eclipses. Radio Physics and Radio Astronomy, 12 (2), 117—134 (2007) [in Russian].
3. Akimov L. A., Bogovskii V. K., Grigorenko E. I., et al. Atmospheric–ionospheric effects of the solar eclipse of May 31, 2003, in Kharkov. Geomagn. Aehron., 45 (4), 526—551 (2005) [in Russian].
4. Akimov L. A., Grigorenko E. I., Taran V. I., et al. Integrated radio physical and optical studies of dynamic processes in the atmosphere and geospace caused by the solar eclipse of August 11, 1999. Zarubezhnaya radioelektronika. Uspekhi sovremennoi radioelektroniki, No. 2, 25—63 (2002) [in Russian].
5. Afraimovich E. L., Kosogorov E. A., Lesyuta O. S. Ionospheric response to the total solar eclipse of August 11, 1999, inferred from the European GPS data. Geomagn. Aehron., 41 (4), 495—502 (2001) [in Russian].
6. Bezrodny V. G., Bliokh P. V., Shubova R. S., Yampolsky Yu. M. Fluctuations of VLF Radio Waves in the Earth-Ionosphere Waveguide. (Nauka, Moscow, 1984) [in Russian].
7. Belikovich V. V., Vyakhirev V. D., Kalinina E. E., et al. Ionospheric response to the partial solar eclipse of March 29, 2006, according to the observations at Nizhni Novgorod and Murmansk. Geomagn. Aehron., 48 (1), 103—108 (2008) [in Russian].
https://doi.org/10.1134/S0016793208010118
8. Burmaka V. P., Lysenko V. N., Lyashenko M. V., Chernogor L. F. Tropospheric-ionospheric effects of the 3 October 2005 partial solar eclipse in Kharkiv. 1. Observations. Kosm. nauka tehnol., 13 (6), 74—86 (2007) [in Russian].
https://doi.org/10.15407/knit2007.06.074
9. Burmaka V. P., Chernogor L. F. The wave-like disturbances in the ionosphere during vernal equinox in 2006. Kosm. nauka tehnol., 14 (4), 82—91 (2008) [in Russian].
https://doi.org/10.15407/knit2008.04.082
10. Garmash K. P., Rozumenko V. T., Tyrnov O. F., et al. Radiophysical investigations of the processes in the near-the-Earth plasma perturbed by the high-energy sources. Pt. I. Zarubezhnaya radioelektronika. Uspekhi sovremennoi radioelektroniki, No. 7, 3—15 (1999) [in Russian].
11. Gokov A. M., Chernogor L. F. Processes in Lower Ionosphere during August 11, 1999 Solar Eclipse. Radio Physics and Radio Astronomy, 5 (4), 348—360 (2000) [in Russian].
12. Gossard E. E., Hooke W. H. Waves in the  Atmosphere, 532 p. (Mir, Moscow, 1978) [in Russian].
13. Grigorenko E. I., Lyashenko M. V., Chernogor L. F. Effects of the solar eclipse of March 29, 2006, in the ionosphere and atmosphere. Geomagn. Aehron., 48 (3), 350—364 (2008) [in Russian].
https://doi.org/10.1134/S0016793208030092
14. Grigor’ev G. I. Acoustic-gravity waves in the earth’s atmosphere. Izv. vuzov. Radiofizika, 42 (1), 3—25 (1999) [in Russian].
15. Karimov R. R., Kozlov V. I., Mullayarov V. A. Specific features of variations in the characteristics of VLF signals when the lunar shadow propagated along the path during the solar eclipse of March 29, 2006. Geomagn. Aehron., 48 (2), 250—254 (2008) [in Russian].
https://doi.org/10.1134/S0016793208020138
16. Kostrov L. S., Chernogor L. F. Processes in Bottomside Ionosphere during August 11, 1999 Solar Eclipse. Radio Physics and Radio Astronomy, 5 (4), 361—370 (2000) [in Russian].
17. Lyashenko M. V., Chernogor L. F. Tropospheric-ionospheric effects of the 3 October 2005 partial Solar eclipse in Kharkiv. 2. Modeling and discussion. Kosm. nauka tehnol., 14 (1), 57—64 (2008) [in Russian].
https://doi.org/10.15407/knit2008.01.057
18. Musatenko S. I., Maksimenko O. I., Musatenko Yu. S., et al. Disturbances in the ionosphere and atmosphere caused by the solar eclipse of August 11, 1999. Geomagn. Aehron., 46 (1), 78—87 (2006) [in Russian].
https://doi.org/10.1134/S0016793206010087
19. Panasenko S. V., Chernogor L. F. Detection of wave disturbances in the mesosphere using a MF-HF radar. Geomagn. Aehron., 46 (4), 525—535 (2006) [in Russian].
https://doi.org/10.1134/S0016793206040128
20. Chernogor L. F. Techniques for measuring the self-action of intense radio frequency pulses in the lower ionosphere. Geofizicheskii Zhurnal, 6 (3), 37—45 (1984) [in Russian].
21. Chernogor L. F. Magnetosphere Electron Precipitation Induced by a Solar Eclipse. Radio Physics and Radio Astronomy, 5 (4), 371—375 (2000) [in Russian].
22. Chernogor L. F. The Earth-Atmosphere-Ionosphere-Magnetosphere as an Open Dynamic Nonlinear Physical System (pt. 1). Nelineinyi Mir, 4 (12), 655—697 (2006) [in Russian].
23. Chernogor L. F. The Earth-Atmosphere-Ionosphere-Magnetosphere as an Open Dynamic Nonlinear Physical System (pt. 2). Nelineinyi Mir, 5 (4), 198—231 (2007) [in Russian].
24. Chernogor L. F. Advanced methods of spectral analysis of quasiperiodic wave-like processes in the ionosphere: Specific features and experimental results. Geomagn. Aehron., 48 (5), 681—702 (2008) [in Russian].
https://doi.org/10.1134/S0016793208050101
25. Chernogor L. F. Effects of solar eclipses in the surface atmosphere. Izv. RAN. Fizika atmosfery i okeana, 44 (4), 467—482 (2008) [in Russian].
26. Chernogor L. F., Rozumenko V. T. Earth — atmosphere — geospace as an open nonlinear dynamical system. Radio Physics and Radio Astronomy, 13 (2), 120—137 (2008).
27. Davies K. Ionospheric radio. (Peter Peregrinus Ltd., London, 1990).
https://doi.org/10.1049/PBEW031E
28. Ishinose T., Ogawa T. Internal gravity waves deduced from HF Doppler data during the April 19, 1958, solar eclipse. J. Geophys. Res., 8 (13), 2401—2404 (1976).
https://doi.org/10.1029/JA081i013p02401
29. Kane J. A. D-region electron density measurements during the solar eclipse of May 20, 1966. Planet. Space Sci., 17 (4), 609—616 (1969).
https://doi.org/10.1016/0032-0633(69)90183-4
30. MacPherson B., Gonzalez S. A., Silzer M. P., et al. Measurements of the topside ionosphere over Arecibo during the total solar eclipse of February 26, 1998. J. Geophys. Res., 105 (A10), 23.055— 23.068 (1998).

31. Zalyubovsky I., Chernogor L., Rozumenko V. The Earth — atmosphere — geospace system: Main properties, processes and phenomena. Space Research in Ukraine. 2006—2008. The Report Prepared by the Space Research Institute of NASU-NSAU, 19—29 (Kyiv, 2008).