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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 22, issue 8
Ann. Geophys., 22, 2741–2746, 2004
https://doi.org/10.5194/angeo-22-2741-2004
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 22, 2741–2746, 2004
https://doi.org/10.5194/angeo-22-2741-2004
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 3.0 License.

  07 Sep 2004

07 Sep 2004

Storm time changes in total electron content in ionosphere measured by low orbiting topside sounder

N. Beloff1, P. F. Denisenko2, I. I. Ivanov2, O. A. Maltseva2, M. P. Gough1, S. I. Klimov3, M. N. Nozdrachev3, H. Alleyne4, and I. Bates4 N. Beloff et al.
  • 1Space Science Centre, Sci Tech, University of Sussex, Brighton, UK
  • 2Rostov State University, Rostov-on-Don, Russia
  • 3Space Research Institute, Russian Academy of Sciences, Moscow, Russia
  • 4Department of Automatic Control and System Engineering, University of Sheffield, Sheffield, UK

Abstract. A new experimental technique is presented for the determination of the total electron content (TEC) below a low-orbiting satellite. According to this technique TEC can be obtained using the segment of a topside ionogram that only contains the traces of signals reflected from the Earth's surface. Possibilities of this technique were demonstrated using MIR station topside sounding data at the night time for both quiet and disturbed ionospheric conditions, and in particular, during the 14 November 1998 storm. An interesting fact was revealed with the help of this technique: after a series of relatively strong storms the main ionospheric trough on 14 November 1998 was detected at an abnormally low geomagnetic latitude (~43°). During this study some spatial variations of TEC were registered that can be interpreted as a TID-type wave structure.

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