Opportune detections of global P-wave propagation from microseisms interferometry
Global seismological observations are sensitive to oceanic forcings, namely microseisms. In addition to dominant surface waves, these sources generate body waves that travel through the deep structures of our planet. Despite these sources’ inherent complexity, interferometric methods allow isolating...
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Académie des sciences
2023-06-01
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| Series: | Comptes Rendus. Géoscience |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.222/ |
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| author | Boué, Pierre Tomasetto, Lisa |
| author_facet | Boué, Pierre Tomasetto, Lisa |
| author_sort | Boué, Pierre |
| collection | DOAJ |
| description | Global seismological observations are sensitive to oceanic forcings, namely microseisms. In addition to dominant surface waves, these sources generate body waves that travel through the deep structures of our planet. Despite these sources’ inherent complexity, interferometric methods allow isolating coherent waves for imaging applications. For a given station pair, only specific microseism events contribute to the illumination of a specific target. We propose an opportune workflow based on ocean sea state models to extract robust interferences. This approach is illustrated with a strong microseism source in the North Atlantic Ocean, occurring around December 9, 2014. |
| format | Article |
| id | doaj-art-66fdd0ffc7c54e1189c8376d23d52eea |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-66fdd0ffc7c54e1189c8376d23d52eea2025-02-07T10:42:14ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252023-06-01356S48510010.5802/crgeos.22210.5802/crgeos.222Opportune detections of global P-wave propagation from microseisms interferometryBoué, Pierre0https://orcid.org/0000-0001-9153-4048Tomasetto, Lisa1https://orcid.org/0009-0009-0705-1541Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, 38000 Grenoble, FranceUniv. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, 38000 Grenoble, FranceGlobal seismological observations are sensitive to oceanic forcings, namely microseisms. In addition to dominant surface waves, these sources generate body waves that travel through the deep structures of our planet. Despite these sources’ inherent complexity, interferometric methods allow isolating coherent waves for imaging applications. For a given station pair, only specific microseism events contribute to the illumination of a specific target. We propose an opportune workflow based on ocean sea state models to extract robust interferences. This approach is illustrated with a strong microseism source in the North Atlantic Ocean, occurring around December 9, 2014.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.222/Global seismologySecondary microseismsSeismic interferometryData processingBody waves |
| spellingShingle | Boué, Pierre Tomasetto, Lisa Opportune detections of global P-wave propagation from microseisms interferometry Comptes Rendus. Géoscience Global seismology Secondary microseisms Seismic interferometry Data processing Body waves |
| title | Opportune detections of global P-wave propagation from microseisms interferometry |
| title_full | Opportune detections of global P-wave propagation from microseisms interferometry |
| title_fullStr | Opportune detections of global P-wave propagation from microseisms interferometry |
| title_full_unstemmed | Opportune detections of global P-wave propagation from microseisms interferometry |
| title_short | Opportune detections of global P-wave propagation from microseisms interferometry |
| title_sort | opportune detections of global p wave propagation from microseisms interferometry |
| topic | Global seismology Secondary microseisms Seismic interferometry Data processing Body waves |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.222/ |
| work_keys_str_mv | AT bouepierre opportunedetectionsofglobalpwavepropagationfrommicroseismsinterferometry AT tomasettolisa opportunedetectionsofglobalpwavepropagationfrommicroseismsinterferometry |