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A generalized theory for full microtremor horizontal-to-vertical [H/V(z, f)] spectral ratio interpretation in offshore and onshore environments
dc.contributor.author | Lontsi, Agostiny Marrios | |
dc.contributor.author | García-Jerez, Antonio | |
dc.contributor.author | Molina-Villegas, Juan Camilo | |
dc.contributor.author | Sánchez-Sesma, Francisco José | |
dc.contributor.author | Molkenthin, Christian | |
dc.contributor.author | Ohrnberger, Matthias | |
dc.contributor.author | Krüger, Frank | |
dc.contributor.author | Wang, Rongjiang | |
dc.contributor.author | Fäh, Donat | |
dc.date.accessioned | 2019-06-25T08:12:19Z | |
dc.date.available | 2019-06-25T08:12:19Z | |
dc.date.issued | 2019-05-16 | |
dc.identifier.citation | Geophysical Journal International 218, 1276-1297 | es_ES |
dc.identifier.issn | 0956-540X | |
dc.identifier.uri | http://hdl.handle.net/10835/6903 | |
dc.description.abstract | Advances in the field of seismic interferometry have provided a basic theoretical interpretation to the full spectrum of the microtremor horizontal-to-vertical spectral ratio [H/V(f)]. The interpretation has been applied to ambient seismic noise data recorded both at the surface and at depth. The new algorithm, based on the diffuse wavefield assumption, has been used in inversion schemes to estimate seismic wave velocity profiles that are useful input information for engineering and exploration seismology both for earthquake hazard estimation and to characterize surficial sediments. However, until now, the developed algorithms are only suitable for on land environments with no offshore consideration. Here, the microtremor H/V(z, f) modelling is extended for applications to marine sedimentary environments for a 1-D layered medium. The layer propagator matrix formulation is used for the computation of the required Green’s functions. Therefore, in the presence of a water layer on top, the propagator matrix for the uppermost layer is defined to account for the properties of the water column. As an application example we analyse eight simple canonical layered earth models. Frequencies ranging from 0.2 to 50 Hz are considered as they cover a broad wavelength interval and aid in practice to investigate subsurface structures in the depth range from a few meters to a few hundreds of meters. Results show a marginal variation of 8 per cent at most for the fundamental frequency when a water layer is present. The water layer leads to variations in H/V peak amplitude of up to 50 per cent atop the solid layers. | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | Oxford University Press | es_ES |
dc.relation | info:eu-repo/grantAgreement/ES/MINECO/CGL2014-59908-JIN/ES/Investigación en nuevos métodos de exploración sísmica pasiva con aplicaciones al monitoreo de acuíferos y al cálculo de escenarios de movimiento sísmico en el Campo de Dalías/INMESPMACE | es_ES |
dc.source | This article has been accepted for publication in Geophysical Journal International (c): 2019 The authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | es_ES |
dc.subject | Sismología | es_ES |
dc.subject | Geofísica | es_ES |
dc.title | A generalized theory for full microtremor horizontal-to-vertical [H/V(z, f)] spectral ratio interpretation in offshore and onshore environments | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://doi.org/10.1093/gji/ggz223 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/ES/MINECO/CGL2014-59908-JIN/ES/Investigación en nuevos métodos de exploración sísmica pasiva con aplicaciones al monitoreo de acuíferos y al cálculo de escenarios de movimiento sísmico en el Campo de Dalías | es_ES |