Wave-equation dispersion inversion of surface waves recorded on irregular topography
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Earth Science and Engineering Program
MetadataShow full item record
AbstractSignificant topographic variations will strongly influence the amplitudes and phases of propagating surface waves. Such effects should be taken into account, otherwise the S-velocity model inverted from the Rayleigh dispersion curves will contain significant inaccuracies. We now show that the recently developed wave-equation dispersion inversion (WD) method naturally takes into account the effects of topography to give accurate S-velocity tomograms. Application of topographic WD to demonstrates that WD can accurately invert dispersion curves from seismic data recorded over variable topography. We also apply this method to field data recorded on the crest of mountainous terrain and find with higher resolution than the standard WD tomogram.
CitationLi J, Schuster GT, Lin F-C, Alam A (2017) Wave-equation dispersion inversion of surface waves recorded on irregular topography. SEG Technical Program Expanded Abstracts 2017. Available: http://dx.doi.org/10.1190/segam2017-17663038.1.
SponsorsWe thank the sponsors for supporting the Consortium of Subsurface Imaging and Fluid Modeling (CSIM). We also thank the KAUST provide the funding by the CRG grant OCRF-2014-CRG3-2300.
PublisherSociety of Exploration Geophysicists