-
- Giovanni Occhipinti
- Equipe Géophysique Spatiale et Planétaire, UMR 7154 Institut de Physique du Globe de Paris, Université Paris Diderot, CNRS Saint‐Maur‐des‐Fossés France
-
- Philippe Dorey
- Office National d'Etudes et de Recherches Aérospatiales Palaiseau France
-
- Thomas Farges
- DAM Ile de France Commissariatà l'Energie Atomique Arpajon France
-
- Philippe Lognonné
- Equipe Géophysique Spatiale et Planétaire, UMR 7154 Institut de Physique du Globe de Paris, Université Paris Diderot, CNRS Saint‐Maur‐des‐Fossés France
書誌事項
- 公開日
- 2010-09
- 権利情報
-
- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
-
- 10.1029/2010gl044009
- 公開者
- American Geophysical Union (AGU)
この論文をさがす
説明
<jats:p>Surface waves emitted after large earthquakes are known to induce, by dynamic coupling, atmospheric infrasonic waves propagating upward through the neutral and ionized atmosphere. Those waves have been detected in the past at ionospheric heights using a variety of techniques, such as HF Doppler sounding or GPS receivers. The HF Doppler technique, particularly sensitive to the ionospheric signature of Rayleigh waves is used here to show ionospheric perturbations consistent with the propagation of Rayleigh wave phases R1 and R2 following the Sumatra earthquake on the 28 March 2005 (M = 8.6). This is in our knowledge the first time that the phase R2 is detected by ionospheric sounding. In addition, we prove here that the ionospheric signature of R2 is also observed by over‐the‐horizon (OTH) Radar. The latter was never used before to detect seismic signature in the ionosphere. Adding the OTH Radar to the list of the “ionospheric seismometers” we discuss and compare the performances of the three different instruments mentioned above, namely HF Doppler sounding, GPS receivers and OTH radar.</jats:p>
収録刊行物
-
- Geophysical Research Letters
-
Geophysical Research Letters 37 (18), L18104-, 2010-09
American Geophysical Union (AGU)
