Imaging subsurface scatterers across a dense geophone array in Long Beach using noise cross-correlation and natural inversion

Abdullah AlTheyab, Gerard T. Schuster, Fan Chi Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We use surface-wave scattering in ambient-noise cross-correlations to image near-surface scatterers and major faults under the populated area of Long Beach, California under a dense geophone array. Images are computed using empirical Green's functions from ambient-noise cross-correlation, and therefore, we eliminate the need for prior velocity models and the costly modeling of surface-waves propagation. The scattered waves are inverted in the least-squares sense to map scatterers in the subsurface. Our results show a number of faults in the area including faults in the Newport-Inglewood fault zone (NIFZ).
Original languageEnglish (US)
Title of host publicationSEG Technical Program Expanded Abstracts 2019
PublisherSociety of Exploration Geophysicists
Pages5398-5402
Number of pages5
DOIs
StatePublished - Aug 10 2019

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