Two-dimensional elastic wave modeling with surface topography using a weighted-averaging finite-element method

DC Field Value Language
dc.contributor.author 최지향 -
dc.contributor.author 민동주 -
dc.contributor.author 남명진 -
dc.contributor.author 신창수 -
dc.contributor.author 서정희 -
dc.date.accessioned 2020-07-17T05:30:06Z -
dc.date.available 2020-07-17T05:30:06Z -
dc.date.created 2020-02-11 -
dc.date.issued 2006-11-26 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/30722 -
dc.description.abstract Surface topography has a significant influence on seismic wave propagation in a reflection seismic exploration. Effects of surface topography on twodimensionalelastic wave propagation are examined through modeling using a weighted-averaging (WA) finite-element method (FEM). This method has proven to be more computationally efficient than conventional FEM. First, effects of an air layer on wave propagation are investigated using flat surface models with andwithout the air layer. To verify correctness and efficiency of our scheme, we compare WA FEM results for irregular topographic models with those derived fromgeneral FEM using one set of rectangular elements. Using irregular surface topography models, elastic wave propagation is investigated to show that the breaks in slope act as a new source for diffracted waves and Rayleigh waves are more seriously corrupted by surface topography than P-waves. -
dc.description.uri 1 -
dc.language English -
dc.publisher The Society of Exploration Geophysicists of Japan -
dc.relation.isPartOf The 8th SEGJ International Symposium- Imaging and Interpretation -
dc.title Two-dimensional elastic wave modeling with surface topography using a weighted-averaging finite-element method -
dc.type Conference -
dc.citation.conferencePlace JA -
dc.citation.endPage 4 -
dc.citation.startPage 1 -
dc.citation.title The 8th SEGJ International Symposium- Imaging and Interpretation -
dc.identifier.bibliographicCitation The 8th SEGJ International Symposium- Imaging and Interpretation, pp.1 - 4 -
dc.description.journalClass 1 -
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