The effect of subionospheric propagation on whistlers recorded by the DEMETER satellite - Observation and modelling

O. E. Ferencz, Cs Ferencz, P. Steinbach, J. Lichtenberger, D. Hamar, M. Parrot, F. Lefeuvre, J. J. Berthelier

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

During a routine analysis of whistlers on the wide-band VLF recording of the DEMETER satellite, a specific signal structure of numerous fractional-hop whistlers, termed the "Spiky Whistler" (SpW) was identified. These signals appear to be composed of a conventional whistler combined by the compound mode-patterns of guided wave propagation, suggesting a whistler excited by a lightning "tweek" spheric. Rigorous, full-wave modelling of tweeks, formed by the long subionospheric guided spheric propagation and of the impulse propagation across an arbitrarily inhomogeneous ionosphere, gave an accurate description of the SpW signals. The electromagnetic impulses excited by vertical, preferably CG lightning discharge, exhibited the effects of guided behaviour and of the dispersive ionospheric plasma along their paths. This modelling and interpretation provides a consistent way to determine the generation and propagation characteristics of the recorded SpW signals, as well as to describe the traversed medium.

Original languageEnglish
Pages (from-to)1103-1112
Number of pages10
JournalAnnales Geophysicae
Volume25
Issue number5
Publication statusPublished - 2007

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DEMETER
whistlers
satellite observation
propagation
lightning
modeling
impulses
wave modeling
ionospherics
wave propagation
ionospheres
ionosphere
recording
electromagnetism
broadband
plasma
effect
observation satellite

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Atmospheric Science
  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Ferencz, O. E., Ferencz, C., Steinbach, P., Lichtenberger, J., Hamar, D., Parrot, M., ... Berthelier, J. J. (2007). The effect of subionospheric propagation on whistlers recorded by the DEMETER satellite - Observation and modelling. Annales Geophysicae, 25(5), 1103-1112.

The effect of subionospheric propagation on whistlers recorded by the DEMETER satellite - Observation and modelling. / Ferencz, O. E.; Ferencz, Cs; Steinbach, P.; Lichtenberger, J.; Hamar, D.; Parrot, M.; Lefeuvre, F.; Berthelier, J. J.

In: Annales Geophysicae, Vol. 25, No. 5, 2007, p. 1103-1112.

Research output: Contribution to journalArticle

Ferencz, OE, Ferencz, C, Steinbach, P, Lichtenberger, J, Hamar, D, Parrot, M, Lefeuvre, F & Berthelier, JJ 2007, 'The effect of subionospheric propagation on whistlers recorded by the DEMETER satellite - Observation and modelling', Annales Geophysicae, vol. 25, no. 5, pp. 1103-1112.
Ferencz, O. E. ; Ferencz, Cs ; Steinbach, P. ; Lichtenberger, J. ; Hamar, D. ; Parrot, M. ; Lefeuvre, F. ; Berthelier, J. J. / The effect of subionospheric propagation on whistlers recorded by the DEMETER satellite - Observation and modelling. In: Annales Geophysicae. 2007 ; Vol. 25, No. 5. pp. 1103-1112.
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