Wave-equation dispersion inversion of surface waves recorded on irregular topography

Jing Li; Gerard T. Schuster; Fan-Chi Lin; Amir Alam

doi:10.1190/segam2017-17663038.1

Wave-equation dispersion inversion of surface waves recorded on irregular topography

Jing Li, Gerard T. Schuster, Fan-Chi Lin, Amir Alam

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Scopus citations

Abstract

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
DOIs	https://doi.org/10.1190/segam2017-17663038.1
State	Published - Aug 17 2017

Bibliographical note

KAUST 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.

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10.1190/segam2017-17663038.1

https://repository.kaust.edu.sa/bitstream/10754/625395/1/segam2017-17663038.1.pdf

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@inproceedings{5b31230945b44899a358b0ffaa9521b7,

title = "Wave-equation dispersion inversion of surface waves recorded on irregular topography",

abstract = "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.",

author = "Jing Li and Schuster, {Gerard T.} and Fan-Chi Lin and Amir Alam",

note = "KAUST 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.",

year = "2017",

month = aug,

day = "17",

doi = "10.1190/segam2017-17663038.1",

language = "English (US)",

booktitle = "SEG Technical Program Expanded Abstracts 2017",

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T1 - Wave-equation dispersion inversion of surface waves recorded on irregular topography

AU - Li, Jing

AU - Schuster, Gerard T.

AU - Lin, Fan-Chi

AU - Alam, Amir

N1 - KAUST 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.

PY - 2017/8/17

Y1 - 2017/8/17

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/625395

UR - http://library.seg.org/doi/10.1190/segam2017-17663038.1

U2 - 10.1190/segam2017-17663038.1

DO - 10.1190/segam2017-17663038.1

M3 - Conference contribution

BT - SEG Technical Program Expanded Abstracts 2017

PB - Society of Exploration Geophysicists

ER -

Wave-equation dispersion inversion of surface waves recorded on irregular topography

Abstract

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