20 March 2021

This EAGE E-Lecture: "Joint VP and VS Monte Carlo Inversion from Surface Wave Data" In common seismic surface wave methods, the surface wave dispersion curve is exploited to estimate the S-wave velocity (VS) model. Since the dispersion curve is poorly sensitive to P-wave velocity (VP), the VP models usually are not the target of these methods. Recently, the concept of the wavelength-depth (W/D) relationship, which is proven to be sensitive to both VS and VP, has been introduced. The joint inversion method presented in this E-lecture considers both surface wave dispersion curve and W/D relationship to estimate high-resolution VS and VP models. The method’s application to a field data set from a controlled site is shown, and the estimated VS and VP models are compared with benchmark values.

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