Surface seismic imaging by multi-frequency amplitude inversion
We have developed a new full-waveform inversion scheme for crosshole seismic imaging. In this paper, we adapt it to surface seismic imaging in which only the spectral amplitudes are used. We perform numerical experiments to test the known source signature algorithm (KSS) against two other inversion schemes?one which estimates the source signature from the shot gathers (ESS) and the other which avoids knowledge of the source by using normalized data (NDI). All three approaches rely on a finite element method for the 2D/2.5D acoustic modelling, and operate in the frequency domain. Three shallow subsurface models were considered, representing buried karst topography, dipping blocks, and isolated waste ponds...
No comments were found for Surface seismic imaging by multi-frequency amplitude inversion. Be the first to comment!