FWT2D: A massively parallel program for frequency-domain full-waveform tomography of wide-aperture seismic data - Part 2: Numerical examples and scalability analysis

This is the second paper in a two-part series that describes a massively parallel code that performs 2D full-waveform inversion of wide-aperture seismic data for imaging complex structures. We present several numerical validation of the full-waveform inversion code with both canonical and realistic synthetic examples. We illustrate how different multiscale strategies can be applied by either successive mono-frequency ? Code available at http://seiscope.unice.fr/opendownload.php Preprint submitted to Computer & Geosciences 26 August 2009 inversions or simultaneous multifrequency inversions and their impact on the convergence and the robustness of the inversion. We present a scalability analysis using