GNGTS 2018 - 37° Convegno Nazionale

GNGTS 2018 S essione 1.3 251 Fig. 2 -Top left: geometry of the array. Top right: frequency-slowness histogram retrieved from the MSPAC analysis. The histogram represents the density of dispersion curve solutions on a grid sampled in velocity. Regions with high solution densities are indicated with green to blue colors. The grey pointed lines are the manually picked minimum and maximum dispersion curves. The black continuous and dotted lines are the lowest (k min ) and highest (k max ) theoretical frequency limits, respectively. Bottom: Autocorrelation curves of the different ring array diameters. The spatial autocorrelation estimations contributing to the selected dispersion curve are marked as black part of the curve.