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dc.contributor.authorde la Puente, Josep
dc.contributor.authorRojas, Otilio
dc.contributor.authorFerrer, Miguel
dc.contributor.authorKormann, Jean
dc.contributor.otherBarcelona Supercomputing Center
dc.date.accessioned2016-06-07T13:16:00Z
dc.date.available2017-05-31T00:30:16Z
dc.date.issued2016-05-31
dc.identifier.citationde la Puente, Josep [et al.]. Mimetic Operators for Seismic Exploration. A: 78th EAGE Conference and Exhibition 2016 - Workshops, Vienna, 30 May - 2 June. "78th EAGE Conference and Exhibition 2016 - Workshops". European Association of Geoscientists and Engineers, 2016.
dc.identifier.urihttp://hdl.handle.net/2117/87770
dc.description.abstractMimetic operators are a kind of discrete operators which, on staggered grids, can accomplish "mimetic" properties analogous to their continuous counterparts. Furthermore, they can attain identical convergence order everywhere in the domain, including at or near the domain's boundaries in non-periodic problems. This property makes mimetic finite difference (MFD) operators attractive whenever high-contrast interfaces or physical boundary conditions are present in our models. In the seismic case, the strongest boundary condition is the interface between Earth and air, the so-called free surface. This surface is typically represented as a traction-free boundary condition and, although it is of critical importance for achieving accurate results, due to its vicinity to the sources and receivers, it is still a problem for current FD implementations. Despite efforts in the past, few FD schemes have attained convergence of order beyond two in results involving the free surface. Here we summarize the properties of mimetic operators applied to the elastic wave equation, as well as the changes required in order to incorporate into current explicit staggered grid codes the mimetic approach of the free-surface condition.
dc.description.sponsorshipThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 644602. The research leading to these results has received funding from the European Union’s Horizon 2020 Programme (2014-2020) and from Brazilian Ministry of Science, Technology and Innovation through Rede Nacional de Pesquisa (RNP) under the HPC4E Project (www.hpc4e.eu), grant agreement No 689772.
dc.format.extent5 p.
dc.language.isoeng
dc.publisherEuropean Association of Geoscientists and Engineers
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica
dc.subject.lcshSeismic exploration
dc.subject.lcshElastic wave propagation
dc.subject.otherMimetic operators
dc.subject.otherMimetic finite difference (MFD)
dc.subject.otherElastodynamic equations
dc.titleMimetic Operators for Seismic Exploration
dc.typeConference report
dc.subject.lemacSismologia
dc.identifier.doi10.3997/2214-4609.201601663
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://earthdoc.eage.org/publication/publicationdetails/?publication=85905
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/689772/EU/HPC for Energy/HPC4E
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/644202/EU/Geophysical Exploration using Advanced GAlerkin Methods/GEAGAM
local.citation.contributor78th EAGE Conference and Exhibition 2016 - Workshops, Vienna, 30 May - 2 June
local.citation.publicationName78th EAGE Conference and Exhibition 2016 - Workshops


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