On the wobbles of phase-velocity dispersion curves
To calculate phase-velocity dispersion curves,we introduce amethodwhich reflects both structural and dynamic effects of wave propagation and interference. Rayleigh-wave fundamentalmode surface waves from the South Atlantic Ocean earthquake of 19 August 2016, M = 7.4, observed at the AlpArray network...
Published in: | Geophysical Journal International |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press
2021
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Subjects: | |
Online Access: | https://hdl.handle.net/11567/1098993 https://doi.org/10.1093/gji/ggaa487 |
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ftunivgenova:oai:iris.unige.it:11567/1098993 |
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openpolar |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
Structure of the Earth Surface waves and free oscillation Wave propagation Wave scattering and diffraction |
spellingShingle |
Structure of the Earth Surface waves and free oscillation Wave propagation Wave scattering and diffraction Kolinsky P. Bokelmann G. Hetenyi G. Abreu R. Allegretti I. Apoloner M. -T. Aubert C. Besancon S. De Berc M. B. Brunel D. Capello M. Carman M. Cavaliere A. Cheze J. Chiarabba C. Clinton J. Cougoulat G. Crawford W. C. Cristiano L. Czifra T. D'Alema E. Danesi S. Daniel R. Dannowski A. Dasovic I. Deschamps A. Dessa J. -X. Doubre C. Egdorf S. Fiket T. Fischer K. Friederich W. Fuchs F. Funke S. Giardini D. Govoni A. Graczer Z. Groschl G. Heimers S. Heit B. Herak D. Herak M. Huber J. Jaric D. Jedlicka P. Jia Y. Jund H. Kissling E. Klingen S. Klotz B. Kopp H. Korn M. Kotek J. Kuhne L. Kuk K. Lange D. Loos J. Lovati S. Malengros D. Margheriti L. Maron C. Martin X. Massa M. Mazzarini F. Meier T. Metral L. Molinari I. Moretti M. Nardi A. Pahor J. Paul A. Pequegnat C. Petersen D. Pesaresi D. Piccinini D. Piromallo C. Plenefisch T. Plomerova J. Pondrelli S. Prevolnik S. Racine R. Regnier M. Reiss M. Ritter J. Rumpker G. Salimbeni S. Santulin M. Scherer W. Schippkus S. Schulte-Kortnack D. Sipka V. Solarino S. Spallarossa D. Spieker K. Stipcevic J. Strollo A. Sule B. Szanyi G. Szucs E. Thomas C. Thorwart M. Tilmann F. Ueding S. Vallocchia M. Vecsey L. Voigt R. Wassermann J. Weber Z. Weidle C. Wesztergom V. Weyland G. Wiemer S. Wolf F. Wolyniec D. Zieke T. Zivcic M. Zlebcikova H. On the wobbles of phase-velocity dispersion curves |
topic_facet |
Structure of the Earth Surface waves and free oscillation Wave propagation Wave scattering and diffraction |
description |
To calculate phase-velocity dispersion curves,we introduce amethodwhich reflects both structural and dynamic effects of wave propagation and interference. Rayleigh-wave fundamentalmode surface waves from the South Atlantic Ocean earthquake of 19 August 2016, M = 7.4, observed at the AlpArray network in Europe are strongly influenced by the upper-mantle lowvelocity zone under the Cameroon Volcanic Line in Central Africa. Predicting phase-delay times affected by diffraction from this heterogeneity for each station gives phase velocities as they would be determined using the classical two-station method as well as the advanced array-beamforming method. Synthetics from these two methods are thus compared with measurements. We show how the dynamic phase velocity differs from the structural phase velocity, howthese differences evolve in space and howtwo-station and arraymeasurements are affected. In principle, arrays are affected with the same uncertainty as the two-station measurements. The dynamic effects can be several times larger than the error caused by the unknown arrival angle in case of the two-station method. The non-planarity of the waves and its relation to the arrival angle and dynamic phase-velocity deviations is discussed. Our study is complemented by extensive review of literature related to the surface wave phase-velocity measurement of the last 120 years. |
author2 |
Kolinsky, P. Bokelmann, G. Hetenyi, G. Abreu, R. Allegretti, I. Apoloner, M. -T. Aubert, C. Besancon, S. De Berc, M. B. Brunel, D. Capello, M. Carman, M. Cavaliere, A. Cheze, J. Chiarabba, C. Clinton, J. Cougoulat, G. Crawford, W. C. Cristiano, L. Czifra, T. D'Alema, E. Danesi, S. Daniel, R. Dannowski, A. Dasovic, I. Deschamps, A. Dessa, J. -X. Doubre, C. Egdorf, S. Fiket, T. Fischer, K. Friederich, W. Fuchs, F. Funke, S. Giardini, D. Govoni, A. Graczer, Z. Groschl, G. Heimers, S. Heit, B. Herak, D. Herak, M. Huber, J. Jaric, D. Jedlicka, P. Jia, Y. Jund, H. Kissling, E. Klingen, S. Klotz, B. |
format |
Article in Journal/Newspaper |
author |
Kolinsky P. Bokelmann G. Hetenyi G. Abreu R. Allegretti I. Apoloner M. -T. Aubert C. Besancon S. De Berc M. B. Brunel D. Capello M. Carman M. Cavaliere A. Cheze J. Chiarabba C. Clinton J. Cougoulat G. Crawford W. C. Cristiano L. Czifra T. D'Alema E. Danesi S. Daniel R. Dannowski A. Dasovic I. Deschamps A. Dessa J. -X. Doubre C. Egdorf S. Fiket T. Fischer K. Friederich W. Fuchs F. Funke S. Giardini D. Govoni A. Graczer Z. Groschl G. Heimers S. Heit B. Herak D. Herak M. Huber J. Jaric D. Jedlicka P. Jia Y. Jund H. Kissling E. Klingen S. Klotz B. Kopp H. Korn M. Kotek J. Kuhne L. Kuk K. Lange D. Loos J. Lovati S. Malengros D. Margheriti L. Maron C. Martin X. Massa M. Mazzarini F. Meier T. Metral L. Molinari I. Moretti M. Nardi A. Pahor J. Paul A. Pequegnat C. Petersen D. Pesaresi D. Piccinini D. Piromallo C. Plenefisch T. Plomerova J. Pondrelli S. Prevolnik S. Racine R. Regnier M. Reiss M. Ritter J. Rumpker G. Salimbeni S. Santulin M. Scherer W. Schippkus S. Schulte-Kortnack D. Sipka V. Solarino S. Spallarossa D. Spieker K. Stipcevic J. Strollo A. Sule B. Szanyi G. Szucs E. Thomas C. Thorwart M. Tilmann F. Ueding S. Vallocchia M. Vecsey L. Voigt R. Wassermann J. Weber Z. Weidle C. Wesztergom V. Weyland G. Wiemer S. Wolf F. Wolyniec D. Zieke T. Zivcic M. Zlebcikova H. |
author_facet |
Kolinsky P. Bokelmann G. Hetenyi G. Abreu R. Allegretti I. Apoloner M. -T. Aubert C. Besancon S. De Berc M. B. Brunel D. Capello M. Carman M. Cavaliere A. Cheze J. Chiarabba C. Clinton J. Cougoulat G. Crawford W. C. Cristiano L. Czifra T. D'Alema E. Danesi S. Daniel R. Dannowski A. Dasovic I. Deschamps A. Dessa J. -X. Doubre C. Egdorf S. Fiket T. Fischer K. Friederich W. Fuchs F. Funke S. Giardini D. Govoni A. Graczer Z. Groschl G. Heimers S. Heit B. Herak D. Herak M. Huber J. Jaric D. Jedlicka P. Jia Y. Jund H. Kissling E. Klingen S. Klotz B. Kopp H. Korn M. Kotek J. Kuhne L. Kuk K. Lange D. Loos J. Lovati S. Malengros D. Margheriti L. Maron C. Martin X. Massa M. Mazzarini F. Meier T. Metral L. Molinari I. Moretti M. Nardi A. Pahor J. Paul A. Pequegnat C. Petersen D. Pesaresi D. Piccinini D. Piromallo C. Plenefisch T. Plomerova J. Pondrelli S. Prevolnik S. Racine R. Regnier M. Reiss M. Ritter J. Rumpker G. Salimbeni S. Santulin M. Scherer W. Schippkus S. Schulte-Kortnack D. Sipka V. Solarino S. Spallarossa D. Spieker K. Stipcevic J. Strollo A. Sule B. Szanyi G. Szucs E. Thomas C. Thorwart M. Tilmann F. Ueding S. Vallocchia M. Vecsey L. Voigt R. Wassermann J. Weber Z. Weidle C. Wesztergom V. Weyland G. Wiemer S. Wolf F. Wolyniec D. Zieke T. Zivcic M. Zlebcikova H. |
author_sort |
Kolinsky P. |
title |
On the wobbles of phase-velocity dispersion curves |
title_short |
On the wobbles of phase-velocity dispersion curves |
title_full |
On the wobbles of phase-velocity dispersion curves |
title_fullStr |
On the wobbles of phase-velocity dispersion curves |
title_full_unstemmed |
On the wobbles of phase-velocity dispersion curves |
title_sort |
on the wobbles of phase-velocity dispersion curves |
publisher |
Oxford University Press |
publishDate |
2021 |
url |
https://hdl.handle.net/11567/1098993 https://doi.org/10.1093/gji/ggaa487 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
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op_doi |
https://doi.org/10.1093/gji/ggaa487 |
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Geophysical Journal International |
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ftunivgenova:oai:iris.unige.it:11567/1098993 2024-04-14T08:19:26+00:00 On the wobbles of phase-velocity dispersion curves Kolinsky P. Bokelmann G. Hetenyi G. Abreu R. Allegretti I. Apoloner M. -T. Aubert C. Besancon S. De Berc M. B. Brunel D. Capello M. Carman M. Cavaliere A. Cheze J. Chiarabba C. Clinton J. Cougoulat G. Crawford W. C. Cristiano L. Czifra T. D'Alema E. Danesi S. Daniel R. Dannowski A. Dasovic I. Deschamps A. Dessa J. -X. Doubre C. Egdorf S. Fiket T. Fischer K. Friederich W. Fuchs F. Funke S. Giardini D. Govoni A. Graczer Z. Groschl G. Heimers S. Heit B. Herak D. Herak M. Huber J. Jaric D. Jedlicka P. Jia Y. Jund H. Kissling E. Klingen S. Klotz B. Kopp H. Korn M. Kotek J. Kuhne L. Kuk K. Lange D. Loos J. Lovati S. Malengros D. Margheriti L. Maron C. Martin X. Massa M. Mazzarini F. Meier T. Metral L. Molinari I. Moretti M. Nardi A. Pahor J. Paul A. Pequegnat C. Petersen D. Pesaresi D. Piccinini D. Piromallo C. Plenefisch T. Plomerova J. Pondrelli S. Prevolnik S. Racine R. Regnier M. Reiss M. Ritter J. Rumpker G. Salimbeni S. Santulin M. Scherer W. Schippkus S. Schulte-Kortnack D. Sipka V. Solarino S. Spallarossa D. Spieker K. Stipcevic J. Strollo A. Sule B. Szanyi G. Szucs E. Thomas C. Thorwart M. Tilmann F. Ueding S. Vallocchia M. Vecsey L. Voigt R. Wassermann J. Weber Z. Weidle C. Wesztergom V. Weyland G. Wiemer S. Wolf F. Wolyniec D. Zieke T. Zivcic M. Zlebcikova H. Kolinsky, P. Bokelmann, G. Hetenyi, G. Abreu, R. Allegretti, I. Apoloner, M. -T. Aubert, C. Besancon, S. De Berc, M. B. Brunel, D. Capello, M. Carman, M. Cavaliere, A. Cheze, J. Chiarabba, C. Clinton, J. Cougoulat, G. Crawford, W. C. Cristiano, L. Czifra, T. D'Alema, E. Danesi, S. Daniel, R. Dannowski, A. Dasovic, I. Deschamps, A. Dessa, J. -X. Doubre, C. Egdorf, S. Fiket, T. Fischer, K. Friederich, W. Fuchs, F. Funke, S. Giardini, D. Govoni, A. Graczer, Z. Groschl, G. Heimers, S. Heit, B. Herak, D. Herak, M. Huber, J. Jaric, D. Jedlicka, P. Jia, Y. Jund, H. Kissling, E. Klingen, S. Klotz, B. 2021 STAMPA https://hdl.handle.net/11567/1098993 https://doi.org/10.1093/gji/ggaa487 eng eng Oxford University Press place:GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND info:eu-repo/semantics/altIdentifier/wos/WOS:000606573600001 volume:224 firstpage:1477 lastpage:1504 numberofpages:28 journal:GEOPHYSICAL JOURNAL INTERNATIONAL https://hdl.handle.net/11567/1098993 doi:10.1093/gji/ggaa487 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85099634448 Structure of the Earth Surface waves and free oscillation Wave propagation Wave scattering and diffraction info:eu-repo/semantics/article 2021 ftunivgenova https://doi.org/10.1093/gji/ggaa487 2024-03-21T02:39:26Z To calculate phase-velocity dispersion curves,we introduce amethodwhich reflects both structural and dynamic effects of wave propagation and interference. Rayleigh-wave fundamentalmode surface waves from the South Atlantic Ocean earthquake of 19 August 2016, M = 7.4, observed at the AlpArray network in Europe are strongly influenced by the upper-mantle lowvelocity zone under the Cameroon Volcanic Line in Central Africa. Predicting phase-delay times affected by diffraction from this heterogeneity for each station gives phase velocities as they would be determined using the classical two-station method as well as the advanced array-beamforming method. Synthetics from these two methods are thus compared with measurements. We show how the dynamic phase velocity differs from the structural phase velocity, howthese differences evolve in space and howtwo-station and arraymeasurements are affected. In principle, arrays are affected with the same uncertainty as the two-station measurements. The dynamic effects can be several times larger than the error caused by the unknown arrival angle in case of the two-station method. The non-planarity of the waves and its relation to the arrival angle and dynamic phase-velocity deviations is discussed. Our study is complemented by extensive review of literature related to the surface wave phase-velocity measurement of the last 120 years. Article in Journal/Newspaper South Atlantic Ocean Università degli Studi di Genova: CINECA IRIS Geophysical Journal International 224 3 1477 1504 |