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High-Resolution Imaging of the Shallow Subsurface with Elastic Full Waveform Inversion of Surface and Body Waves
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 25th European Meeting of Environmental and Engineering Geophysics, Sep 2019, Volume 2019, p.1 - 5
Abstract
Summary
In this abstract, we discuss an elastic full waveform inversion approach to estimate high resolution shallow subsurface elastic parameters from both surface and body waves in onshore seismic data. We have used a spacetime domain weighting function to balance the amplitudes of the dominant surface waves with respect to other body waves. This allows us to simultaneous extract information from the surface waves and from the refracted and reflected/converted body waves. The different wave types are complimentary in terms of depth and wavenumber information. The concept and results are illustrated using a complex 2D synthetic example representing a typical Middle-east geology.
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