Skip to main content

Volume 61 Supplement 5

Special Issue: Flare-Substorm/Space Weather Topics

Aeronomic effects of the solar flares in the topside ionosphere

Abstract

We obtained that according to the GPS data at altitudes of the topside ionosphere (h >300 km) a flare is able to cause a decrease of the electron content. Using the theoretical model it is shown that the intense transport of O+ ions into the above-situated plasma caused by a sharp increase in the ion production rate and thermal expansion of the ionospheric plasma is a cause of the formation of the negative disturbance in the electron concentration in the topside ionosphere.

References

  • Avakyan, S. V., A. I. Vdovin, and V. F. Pustarnakov, Ionizing and Penetrating Radiation in the Near-Earth Space Environment, 500 pp., Hydrometeoizdat, St.-Petersburg, 1994.

    Google Scholar 

  • Fitzgerald, T. J., Observations of total electron content perturbations on GPS signals caused by a ground level explosion, J. Atmos. Sol.-Terr. Phys., 59, 829, 1997.

    Article  Google Scholar 

  • Hedin, A. E. et al., Revised global model of thermosphere winds using satellite and ground-based observations, J. Geophys. Res., 96(5), 7657, 1991.

    Article  Google Scholar 

  • Hoffmann-Wellenhof, B., H. Lichtenegger, and J. Collins, Global Positioning System: Theory and Practice, Springer-Verlag, Wien, 1992.

    Book  Google Scholar 

  • Horan, D. M. and R. W. Kreplin, Simultaneous measurements of EUV and soft X-ray solar flare emission, Sol. Phys., 74(1), 265, doi:10. 1007/BF00151295, 1981.

    Article  Google Scholar 

  • Klobuchar, J. A., Ionospheric time-delay algorithm for single-frequency GPS users, IEEE Trans. Aero. Electron. Sys., 23(3), 325, 1986.

    Google Scholar 

  • Korenkov, Yu. N. and A. A. Namgaladze, L. A. Yudovich, 228 pp., Moscow, Publ. House “Nauka”, 197

    Google Scholar 

  • Krinberg, I. A. and A. V. Taschilin, Ionosphere and Plasmasphere, Nauka, Moscow, 1984.

    Google Scholar 

  • Leonovich, L. A., E. L. Afraimovich, E. B. Romanova, and A. V. Taschilin, Estimating the contribution from different ionospheric regions to the TEC response to the solar flares using data from the international GPS network, Ann. Geophys., 20, 1935, 2002.

    Article  Google Scholar 

  • Nusinov, A. A., Models for prediction of EUV and X ray solar radiation based on 10.7-cm radio emission, in Proc. Workshop on Solar Electromagnetic Radiation for Solar Cycle 22, Boulder, Colo., July 1992, edited by R. F. Donnely, NOAA ERL, Boulder, Colo., USA, 354, 1992.

    Google Scholar 

  • Richards, P. G., J. A. Fennelly, and D. G. Tor, EUVAC: A solar EUV flux model for aeronomic calculations, J. Geophys. Res., 99, 8981, doi:10.1029/94JA00518, 1994.

    Article  Google Scholar 

  • Thome, G. D. and L. S. Wagner, Electron density enhancements in the E and F regions of the ionosphere during solar flares, J. Geophys. Res., 76, 6883, 1981.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to L. A. Leonovich.

Rights and permissions

Open Access  This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.

Reprints and permissions

About this article

Cite this article

Leonovich, L.A., Taschilin, A.V. Aeronomic effects of the solar flares in the topside ionosphere. Earth Planet Sp 61, 643–648 (2009). https://doi.org/10.1186/BF03352941

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03352941

Key words