Two-dimensional waveform inversion of multi-component data in acoustic-elastic coupled media SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Choi, Yunseok | - |
dc.contributor.author | Min, Dong-Joo | - |
dc.contributor.author | Shin, Changsoo | - |
dc.date.accessioned | 2020-04-20T10:40:15Z | - |
dc.date.available | 2020-04-20T10:40:15Z | - |
dc.date.created | 2020-01-28 | - |
dc.date.issued | 2008-11 | - |
dc.identifier.issn | 0016-8025 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/4431 | - |
dc.description.abstract | In order to account for the effects of elastic wave propagation in marine seismic data, we develop a waveform inversion algorithm for acoustic-elastic media based on a frequency-domain finite-element modelling technique. In our algorithm we minimize residuals using the conjugate gradient method, which back-propagates the errors using reverse time migration without directly computing the partial derivative wavefields. Unlike a purely acoustic or purely elastic inversion algorithm, the Green's function matrix for our acoustic-elastic algorithm is asymmetric. We are nonetheless able to achieve computational efficiency using modern numerical methods. Numerical examples show that our coupled inversion algorithm produces better velocity models than a purely acoustic inversion algorithm in a wide variety of cases, including both single- and multi-component data and low-cut filtered data. We also show that our algorithm performs at least equally well on real field data gathered in the Korean continental shelf. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | WILEY-BLACKWELL | - |
dc.subject | APERTURE SEISMIC DATA | - |
dc.subject | COMPLEX STRUCTURES | - |
dc.subject | FINITE-DIFFERENCE | - |
dc.subject | FREQUENCY-DOMAIN | - |
dc.subject | GAUSS-NEWTON | - |
dc.subject | FIELD | - |
dc.subject | PROPAGATION | - |
dc.subject | REFLECTION | - |
dc.subject | TIME | - |
dc.title | Two-dimensional waveform inversion of multi-component data in acoustic-elastic coupled media | - |
dc.type | Article | - |
dc.citation.endPage | 881 | - |
dc.citation.startPage | 863 | - |
dc.citation.title | GEOPHYSICAL PROSPECTING | - |
dc.citation.volume | 56 | - |
dc.citation.number | 6 | - |
dc.contributor.alternativeName | 최윤석 | - |
dc.identifier.bibliographicCitation | GEOPHYSICAL PROSPECTING, v.56, no.6, pp.863 - 881 | - |
dc.identifier.doi | 10.1111/j.1365-2478.2008.00735.x | - |
dc.identifier.scopusid | 2-s2.0-53549088058 | - |
dc.identifier.wosid | 000259815100007 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | APERTURE SEISMIC DATA | - |
dc.subject.keywordPlus | COMPLEX STRUCTURES | - |
dc.subject.keywordPlus | FINITE-DIFFERENCE | - |
dc.subject.keywordPlus | FREQUENCY-DOMAIN | - |
dc.subject.keywordPlus | GAUSS-NEWTON | - |
dc.subject.keywordPlus | FIELD | - |
dc.subject.keywordPlus | PROPAGATION | - |
dc.subject.keywordPlus | REFLECTION | - |
dc.subject.keywordPlus | TIME | - |
dc.relation.journalWebOfScienceCategory | Geochemistry & Geophysics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Geochemistry & Geophysics | - |