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A new technique for reconstruction of the current moment waveform related to a gigantic jet from the magnetic field component recorded by an ELF station
Author(s) -
Kułak Andrzej,
Młynarczyk Janusz
Publication year - 2011
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2010rs004475
Subject(s) - waveform , impulse (physics) , moment (physics) , ionosphere , acoustics , physics , jet (fluid) , geology , remote sensing , geophysics , telecommunications , computer science , radar , mechanics , classical mechanics , quantum mechanics
The paper presents a reconstruction of the current moment waveform of the gigantic jet observed optically last winter in Europe, based on the magnetic field component of the ELF electromagnetic field, recorded by the Hylaty station in Poland. Gigantic jets have only been observed so far on a few occasions, and there is still relatively little known about them. In order to analyze the recorded signal we have developed a new technique, which makes it possible to obtain the actual current moment waveform of the lightning discharges associated with the gigantic jet by eliminating from the waveform the effects of both the impulse response of the receiver and the Earth‐ionosphere propagation channel. The proposed method can be also used to analyze other waveform observations, especially in the ELF and VLF frequency bands.