Tsunami-driven ionospheric perturbations associated with the 2011 Tohoku earthquake as detected by subionospheric VLF signals
The subionospheric data from a Japanese very low frequency/low frequency (VLF/LF) receiving station at Moshiri, Hokkaido, are used to detect the response of the lower ionosphere to the tsunami triggered by the 2011 Tohoku earthquake. Disturbances in the phase and amplitude of VLF signals propagating...
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| Veröffentlicht in: | Geomatics, natural hazards and risk natural hazards and risk, 2014-10, Vol.5 (4), p.285-292 |
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| creator | Rozhnoi, A. Solovieva, M. Hayakawa, M. Yamaguchi, H. Hobara, Y. Levin, B. Fedun, V. |
| description | The subionospheric data from a Japanese very low frequency/low frequency (VLF/LF) receiving station at Moshiri, Hokkaido, are used to detect the response of the lower ionosphere to the tsunami triggered by the 2011 Tohoku earthquake. Disturbances in the phase and amplitude of VLF signals propagating from the transmitter in Hawaiian Islands are observed during the tsunami wave passage, and these effects in the ionosphere are compared to the in situ sea-level global positioning system (GPS) measurements near Japan. The frequency of the maximum spectral amplitude both for the VLF and GPS data is found to be in the range of periods of 8-50 min, which is likely to correspond to the period of the internal gravity waves generated by the tsunami. |
| doi_str_mv | 10.1080/19475705.2014.888100 |
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Disturbances in the phase and amplitude of VLF signals propagating from the transmitter in Hawaiian Islands are observed during the tsunami wave passage, and these effects in the ionosphere are compared to the in situ sea-level global positioning system (GPS) measurements near Japan. The frequency of the maximum spectral amplitude both for the VLF and GPS data is found to be in the range of periods of 8-50 min, which is likely to correspond to the period of the internal gravity waves generated by the tsunami.</abstract><cop>Abingdon</cop><pub>Taylor & Francis</pub><doi>10.1080/19475705.2014.888100</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Amplitudes Global Positioning System Receiving Risk Seismic phenomena Tsunamis VLF Wave propagation |
| title | Tsunami-driven ionospheric perturbations associated with the 2011 Tohoku earthquake as detected by subionospheric VLF signals |
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