Skeletonized inversion of surface wave: Active source versus controlled noise comparison
Type
ArticleAuthors
Li, Jing
Hanafy, Sherif
KAUST Department
Physical Sciences and Engineering (PSE) DivisionDate
2016-07-14Permanent link to this record
http://hdl.handle.net/10754/627153
Metadata
Show full item recordAbstract
We have developed a skeletonized inversion method that inverts the S-wave velocity distribution from surface-wave dispersion curves. Instead of attempting to fit every wiggle in the surface waves with predicted data, it only inverts the picked dispersion curve, thereby mitigating the problem of getting stuck in a local minimum. We have applied this method to a synthetic model and seismic field data from Qademah fault, located at the western side of Saudi Arabia. For comparison, we have performed dispersion analysis for an active and controlled noise source seismic data that had some receivers in common with the passive array. The active and passive data show good agreement in the dispersive characteristics. Our results demonstrated that skeletonized inversion can obtain reliable 1D and 2D S-wave velocity models for our geologic setting. A limitation is that we need to build layered initial model to calculate the Jacobian matrix, which is time consuming.Citation
Li J, Hanafy S (2016) Skeletonized inversion of surface wave: Active source versus controlled noise comparison. Interpretation 4: SH11–SH19. Available: http://dx.doi.org/10.1190/int-2015-0174.1.Sponsors
We thank the sponsors for supporting the Center for Subsurface Imaging and Fluid Modeling (CSIM). We thank KAUST for funding this research.Publisher
Society of Exploration GeophysicistsJournal
InterpretationISSN
2324-88582324-8866
ae974a485f413a2113503eed53cd6c53
10.1190/int-2015-0174.1