16 May 2018
Seismic propagation may exhibit very complex physics, especially on land where elastic and attenuation are dominating effects. In this context, full waveform inversion (FWI) must move from the acoustic approximation to the more challenging viscoelastic
wave equation. In this video, Gabriel Fabien-Ouellet explains the theory behind viscoelastic full waveform inversion. Using a symmetrization transformation of the problem, he shows how the adjoint state method can be modified to simplify the numerical
implementation of viscoelastic FWI, and then presents the main challenges of inverting for attenuation.
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