Emergence of body waves from cross-correlation of short period seismic noise.
International audience Ambient noise correlation is now widely used in seismology to obtain the surface waves part of Green's function. More difficult is the extraction of body waves from noise correlations. Using 42 temporary broad-band three components stations located on the northern part of...
Published in: | Geophysical Journal International |
---|---|
Main Authors: | , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
|
Subjects: | |
Online Access: | https://hal.science/hal-00706814 https://hal.science/hal-00706814/document https://hal.science/hal-00706814/file/PoliPedersenAllETAL2012.pdf https://doi.org/10.1111/j.1365-246X.2011.05271.x |
id |
ftinsu:oai:HAL:hal-00706814v1 |
---|---|
record_format |
openpolar |
spelling |
ftinsu:oai:HAL:hal-00706814v1 2024-04-28T08:18:41+00:00 Emergence of body waves from cross-correlation of short period seismic noise. Poli, Piero Pedersen, Helle Campillo, Michel Ondes et Structures Institut des Sciences de la Terre (ISTerre) Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) European Project: 2012-02-01 https://hal.science/hal-00706814 https://hal.science/hal-00706814/document https://hal.science/hal-00706814/file/PoliPedersenAllETAL2012.pdf https://doi.org/10.1111/j.1365-246X.2011.05271.x en eng HAL CCSD Oxford University Press (OUP) info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-246X.2011.05271.x hal-00706814 https://hal.science/hal-00706814 https://hal.science/hal-00706814/document https://hal.science/hal-00706814/file/PoliPedersenAllETAL2012.pdf doi:10.1111/j.1365-246X.2011.05271.x info:eu-repo/semantics/OpenAccess ISSN: 0956-540X EISSN: 1365-246X Geophysical Journal International https://hal.science/hal-00706814 Geophysical Journal International, 2012, Volume 188 (Issue 2), p. 549-558. ⟨10.1111/j.1365-246X.2011.05271.x⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2012 ftinsu https://doi.org/10.1111/j.1365-246X.2011.05271.x 2024-04-05T00:22:56Z International audience Ambient noise correlation is now widely used in seismology to obtain the surface waves part of Green's function. More difficult is the extraction of body waves from noise correlations. Using 42 temporary broad-band three components stations located on the northern part of the fennoscandian region, we identify high-frequency (0.5-2 Hz) body waves emerging from noise correlations for inter-station distances up to 550 km. The comparison of the noise correlations with earthquake data confirms that the observed waves can be interpreted as P and S waves reflected from the Moho. Because the crustal model of the area is well known, we also compared the noise correlations with synthetic seismograms, and found an excellent agreement between the travel times of all the observed phases. Polarization analysis provides a further argument to confirm the observation of body waves. Article in Journal/Newspaper Fennoscandian Institut national des sciences de l'Univers: HAL-INSU Geophysical Journal International 188 2 549 558 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Poli, Piero Pedersen, Helle Campillo, Michel Emergence of body waves from cross-correlation of short period seismic noise. |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Ambient noise correlation is now widely used in seismology to obtain the surface waves part of Green's function. More difficult is the extraction of body waves from noise correlations. Using 42 temporary broad-band three components stations located on the northern part of the fennoscandian region, we identify high-frequency (0.5-2 Hz) body waves emerging from noise correlations for inter-station distances up to 550 km. The comparison of the noise correlations with earthquake data confirms that the observed waves can be interpreted as P and S waves reflected from the Moho. Because the crustal model of the area is well known, we also compared the noise correlations with synthetic seismograms, and found an excellent agreement between the travel times of all the observed phases. Polarization analysis provides a further argument to confirm the observation of body waves. |
author2 |
Ondes et Structures Institut des Sciences de la Terre (ISTerre) Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Université Joseph Fourier - Grenoble 1 (UJF)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-PRES Université de Grenoble-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) European Project: |
format |
Article in Journal/Newspaper |
author |
Poli, Piero Pedersen, Helle Campillo, Michel |
author_facet |
Poli, Piero Pedersen, Helle Campillo, Michel |
author_sort |
Poli, Piero |
title |
Emergence of body waves from cross-correlation of short period seismic noise. |
title_short |
Emergence of body waves from cross-correlation of short period seismic noise. |
title_full |
Emergence of body waves from cross-correlation of short period seismic noise. |
title_fullStr |
Emergence of body waves from cross-correlation of short period seismic noise. |
title_full_unstemmed |
Emergence of body waves from cross-correlation of short period seismic noise. |
title_sort |
emergence of body waves from cross-correlation of short period seismic noise. |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00706814 https://hal.science/hal-00706814/document https://hal.science/hal-00706814/file/PoliPedersenAllETAL2012.pdf https://doi.org/10.1111/j.1365-246X.2011.05271.x |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
ISSN: 0956-540X EISSN: 1365-246X Geophysical Journal International https://hal.science/hal-00706814 Geophysical Journal International, 2012, Volume 188 (Issue 2), p. 549-558. ⟨10.1111/j.1365-246X.2011.05271.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-246X.2011.05271.x hal-00706814 https://hal.science/hal-00706814 https://hal.science/hal-00706814/document https://hal.science/hal-00706814/file/PoliPedersenAllETAL2012.pdf doi:10.1111/j.1365-246X.2011.05271.x |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1111/j.1365-246X.2011.05271.x |
container_title |
Geophysical Journal International |
container_volume |
188 |
container_issue |
2 |
container_start_page |
549 |
op_container_end_page |
558 |
_version_ |
1797582551086268416 |