The inversion of surface wave dispersion curves is a well-established investigation approach to provide S-wave velocity models. Recent works have shown the possibility of exploiting the relation between surface wave wavelength and investigation depth to estimate directly the time-average S-wave velocity along a line or over an area. Moreover, the same relation is sensitive to Poisson’s ratio and can be therefore used to retrieve also the time-average P-wave velocity model. Here we show that, starting from the estimated time average and models and using a Dix-like formula, we can estimate local and models. We use a synthetic 1D example to outline the method and then we show the results on a field dataset.
Presentation Date: Monday, September 25, 2017
Start Time: 2:15 PM
Location: 370C
Presentation Type: ORAL
