Ionospheric remote sensing of the Denali Earthquake Rayleigh surface waves
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- Vesna Ducic
- Département de Géophysique Spatiale et Planétaire, UMR7096 Institut de Physique du Globe de Paris France
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- Juliette Artru
- Seismological Laboratory California Institute of Technology Pasadena California USA
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- Philippe Lognonné
- Département de Géophysique Spatiale et Planétaire, UMR7096 Institut de Physique du Globe de Paris France
書誌事項
- 公開日
- 2003-09
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1029/2003gl017812
- 公開者
- American Geophysical Union (AGU)
この論文をさがす
説明
<jats:p>Using the Global Positioning System, we have detected ionospheric disturbances associated with the long‐period Rayleigh waves from the 2002 Denali earthquake (M<jats:sub>s</jats:sub> = 7.9). The dense California GPS networks allowed us to map the ionospheric perturbations and to compute the group velocity with a high spatial resolution above the Pacific coasts. Due to a low sampling rate, a large error in the velocity determination remains. Nonetheless, it demonstrates that bi‐static remote sensing measurements of seismic waves with GPS networks can be performed. Monostatic measurements with a dedicated satellite could possibly be used to record in the ionosphere surface waves originating from large earthquakes. Such a space‐based remote sensing of the local group velocity of Rayleigh surface waves would effectively complement the seismic networks for high‐resolution global tomography of the Earth's lithosphere.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 30 (18), 1951-, 2003-09
American Geophysical Union (AGU)
