Significant 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.
|Original language||English (US)|
|Title of host publication||SEG Technical Program Expanded Abstracts 2017|
|Publisher||Society of Exploration Geophysicists|
|State||Published - Aug 17 2017|
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We 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.