Abstract
One of the most powerful solar proton precipitations (SPP), which began on 29 September 1989, was at the same time the longest one. This peculiarity gave to us the possibility to study on the base of VLF data the precipitation effect during a sunset on the dynamics of the electric properties of the lowest part of the ionosphere in the terms of complex reflection coefficient for a sequence of 8 days. The input data for the analysis were the relative variations of amplitudes and variations of phases for 3 VLF monochromatic, ground based signals with radio path North Norway—Kola Peninsula having a moderate length, 885 km. A self-consistent method for solution of an inverse VLF problem was used. The sunset dynamics of electric conductivity of the temporally modified bottom ionosphere was stated for all days of the SPP. The solution of such inverse VLF problem was possible due to the multi frequency measurements for the radio path and the synchronous registration of amplitudes and phases.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Miroshnichenko, L., de Konong, C.A., Perez-Enriques, R.: Large solar event of September 29, 1989: ten years after. Space Sci. Rev. 91(3), 615–715 (2000)
Remenets, G.F., Beloglazov, M.I.: Dynamics of an auroral ionospheric fringe at geophysical disturbances on 29 September 1989. Planet. Space Sci. 40, 1101–1108 (1992)
Bremmer, H.: Terrestrial radio waves: Theory of propagation, 344 p. Elsevier, New York (1949)
Gyunninen, E.M., Zabavina, I.N.: Propagation of log waves and inhomogeneous ionosphere. In: Gyunninen, E.M. (ed.) Problems of Diffraction and Radio Wave Propagation, Issue 7, pp. 142–151. Leningrad State University, Leningrad (1968). (in Russian)
Remenets, G.F.: Unique ground VLF monitoring of the relativistic electron precipitations. In: Pudovkin, M. I., Besser, B.P., Riedler, W., Lyatskaya, A.M. (eds.) Problems of Geospace, Proceedings of an International Conference “Problems of Geocosmos” held in Petrodvorets, St. Petersburg, Russia, pp. 273–278, Austrian Academy of Science Press, Vienna (1997)
Remenets, G.F., Beloglazov, M.I.: About dynamics of the lower ionosphere during auroral disturbances by the VLF data. Geomagn. Aeron. 22, 205–210 (1982). (in Russian)
Remenets, G.F., Beloglazov, M.I., Tamkun, L.G.: A modified method of VLF anomalies and a dynamics of a low ionosphere fringe at the time of the PCA event. Geomagn. Aeron. 29, 45–50 (1989). (in Russian)
Remenets, G.F., Beloglazov, M.I.: An initial analysis of the dynamics of reflection properties of the low ionosphere at sunset for an auroral radio pass (according to the VLF data). Geomagn. Aeron. 25, 69–72 (1985). (in Russian)
Helms, W.J., Swarm, H.M.: VLF step frequency sounding of the polar lower ionosphere. J. Geophys. Res. 74(26), 6341–6351 (1961)
Field, E.C., Warren, R.E., Warber, C.R.: Calculation of ionospheric conductivity profiles by inverting VLF/LF reflection data: 1. Isotropic propagation. Radio. Sci. 18, 452–460 (1983)
Remenets, G.F., Beloglazov, M.I.: Reflection properties of the lower polar ionosphere, and features of the excitation and propagation of superlong waves (SLW) at high latitudes (review). Radiophys. Quantum Electron. 28(12), 1029–1040 (1985)
Coffey, H.E.: Solar-Geophysical Data Number 542, October 1989. Part 1 (prompt reports). Data for September, August 1989, and late data, p. 18. United States: N. p. (1989)
National Center for Environmental Information. https://satdat.ngdc.noaa.gov/sem/goes/data/avg/1989/09/goes06/csv/, Page g06_eps_5m_19890901_19890930.csv, https://satdat.ngdc.noaa.gov/sem/goes/data/avg/1989/10/goes06/csv/, Page g06_eps_5m_19891001_ 19891031.csv
Gordon, C.W., Canuto, V., Ian Axford, W.: Handbook of Astronomy, Astrophysics and Geophysics. The Earth: The Upper Atmosphere, Ionosphere and Magnetosphere, vol. 1, pp. 276–277. Gordon and Breanch Science Publishers
Remenets, G.F., Beloglazov, M.I.: Ultrarelativistic electrons in the near cosmos and X-ray aurora in the middle polar atmosphere. J. Geophys. Res. Space Phys. 118(11), 6829–6838 (2013)
Remenets, G.F., Astafiev, A.M.: Solution uniquity of an inverse VLF problem: a case study of the ground-based, VLF radio signal disturbances caused the ultra-energetic relativistic electron precipitation and of their southern boundaries. Adv. Space Res. 56(6), 878–889 (2016)
Galyuk, Y.P., Ivanov, V.I.: Determination of the propagation characteristics of VLF fields in the earth-ionosphere waveguide in the case of an anisotropic ionosphere inhomogeneous with height. Problemy Difraktsii i Rasprostraneniia Voln (16), 148–154 (1978). (in Russian)
Rybachek, S.T.: Effect of the essential region of the ionospheric layer on the characteristics of the propagation of ultra-long waves. Radiophys. Quantum Electron. 15(9), 992–995 (1972)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Remenets, G.F., Suhovey, M.I., Shishaev, V.A. (2020). Sunset Variations of the Bottom Edge of the Ionosphere During the Proton Precipitations on and After 29 September, 1989. In: Yanovskaya, T., Kosterov, A., Bobrov, N., Divin, A., Saraev, A., Zolotova, N. (eds) Problems of Geocosmos–2018. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-21788-4_28
Download citation
DOI: https://doi.org/10.1007/978-3-030-21788-4_28
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-21787-7
Online ISBN: 978-3-030-21788-4
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)