Diurnal phase and amplitude variations of 12.1 kHz Omega signal along the auroral zone

P(論文) The diurnal and seasonal variations in the phase and amplitude of Omega radio navigation signal at 12.1 kHz band (from Aldra in Norway) received at Tjornes in Iceland are analyzed in order to know the propagation mode of the VLF wave signal in high latitudes for a better understanding of the b...

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Bibliographic Details
Main Authors: Araki, Takashi, Sato, Natsuo, Fujii, Ryoichi, Kikuchi, Takashi
Language:English
Published: National Institute of Polar Research 1990
Subjects:
Aldra
Norway
Iceland
Online Access:https://nipr.repo.nii.ac.jp/record/4087/files/KJ00000036018.pdf
https://doi.org/10.15094/00004087
https://nipr.repo.nii.ac.jp/records/4087
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Summary:P(論文) The diurnal and seasonal variations in the phase and amplitude of Omega radio navigation signal at 12.1 kHz band (from Aldra in Norway) received at Tjornes in Iceland are analyzed in order to know the propagation mode of the VLF wave signal in high latitudes for a better understanding of the behavior of the lower ionosphere. It is found that the diurnal variation of the VLF phase and amplitude is closely correlated with solar zenith angle. A rapid change of VLF phase shift and VLF amplitude occurs at the times of sunrise and sunset during magnetically quiet period. departmental bulletin paper

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