Fig. 4From: Tools for the efficient analysis of surface waves from active and passive seismic data: exploring an NE-Italy perilagoon area with significant lateral variationsHS analysis for the San Marco area—P1 site (top of the dune—see map in Fig. 2b): a group-velocity spectra of the field (background colours) and synthetic (overlying black contour lines) for the vertical (Z) component of Rayleigh waves; b group-velocity spectra of the radial (R) component of Rayleigh waves; c field (dashed magenta line) and synthetic (blue line) RPM frequency curves; d VS profile representing the minimum-distance solution of the performed multi-objective inversion (Dal Moro et al. 2019)Back to article page