Emergence of body waves from cross-correlation of short period seismic noise
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 regi...
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ftunivpadovairis:oai:www.research.unipd.it:11577/3471052 2024-01-21T10:06:09+01:00 Emergence of body waves from cross-correlation of short period seismic noise Poli P. Pedersen H. A. Campillo M. Poli, P. Pedersen, H. A. Campillo, M. 2012 https://hdl.handle.net/11577/3471052 https://doi.org/10.1111/j.1365-246X.2011.05271.x eng eng volume:188 issue:2 firstpage:549 lastpage:558 numberofpages:10 journal:GEOPHYSICAL JOURNAL INTERNATIONAL https://hdl.handle.net/11577/3471052 doi:10.1111/j.1365-246X.2011.05271.x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84855449992 Body wave Interferometry Wave propagation info:eu-repo/semantics/article 2012 ftunivpadovairis https://doi.org/10.1111/j.1365-246X.2011.05271.x 2023-12-27T17:31:36Z 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. © 2011 The Authors Geophysical Journal International © 2011 RAS. Article in Journal/Newspaper Fennoscandian Padua Research Archive (IRIS - Università degli Studi di Padova) Geophysical Journal International 188 2 549 558 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
Body wave Interferometry Wave propagation |
spellingShingle |
Body wave Interferometry Wave propagation Poli P. Pedersen H. A. Campillo M. Emergence of body waves from cross-correlation of short period seismic noise |
topic_facet |
Body wave Interferometry Wave propagation |
description |
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. © 2011 The Authors Geophysical Journal International © 2011 RAS. |
author2 |
Poli, P. Pedersen, H. A. Campillo, M. |
format |
Article in Journal/Newspaper |
author |
Poli P. Pedersen H. A. Campillo M. |
author_facet |
Poli P. Pedersen H. A. Campillo M. |
author_sort |
Poli P. |
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 |
publishDate |
2012 |
url |
https://hdl.handle.net/11577/3471052 https://doi.org/10.1111/j.1365-246X.2011.05271.x |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_relation |
volume:188 issue:2 firstpage:549 lastpage:558 numberofpages:10 journal:GEOPHYSICAL JOURNAL INTERNATIONAL https://hdl.handle.net/11577/3471052 doi:10.1111/j.1365-246X.2011.05271.x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84855449992 |
op_doi |
https://doi.org/10.1111/j.1365-246X.2011.05271.x |
container_title |
Geophysical Journal International |
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188 |
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2 |
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549 |
op_container_end_page |
558 |
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1788696614050725888 |