Ionospheric turbulence from ground-based and satellite VLF/LF transmitter signal observations for the Simushir earthquake (November 15, 2006)

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Alexander Rozhnoi
Maria Solovieva
Michel Parrot
Masashi Hayakawa
Pier Francesco Biagi
Konrad Schwingenschuh

Abstract

Signals from very low frequency (VLF)/ low frequency (LF) transmitters recorded on the ground station at Petropavlovsk-Kamchatsky and on board the French DEMETER satellite were analyzed for the Simushir earthquake (M 8.3; November 15, 2006). The period of analysis was from October 1, 2006, to January 31, 2007. The ground and satellite data were processed by a method based on the difference between the real signal at night-time and the model signal. The model for the ground observations was the monthly averaged signal amplitudes and phases, as calculated for the quiet days of every month. For the satellite data, a two-dimensional model of the signal distribution over the selected area was constructed. Preseismic effects were found several days before the earthquake, in both the ground and satellite observations.

 

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How to Cite
1.
Rozhnoi A, Solovieva M, Parrot M, Hayakawa M, Biagi PF, Schwingenschuh K. Ionospheric turbulence from ground-based and satellite VLF/LF transmitter signal observations for the Simushir earthquake (November 15, 2006). Ann. Geophys. [Internet]. 2012Apr.24 [cited 2021Sep.25];55(1). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5190
Section
EARTHQUAKE PRECURSORS / Special Issue ed. by P.F. Biagi, M.E. Contadakis, M. Hayakawa and T. Maggipinto

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