Fig. 13

Array-based dispersion measurement of the real data. a 1-D shear velocity structure modeled with six layers of variable thickness (parameterization A). The thick and thin black lines represent the mean and standard deviation of the estimated models from the 100 bootstrap samples. b Rayleigh wave dispersion curves estimated with model A. The thick and thin white curves represent the mean and three times the standard deviation of the 100 bootstrap results. The background image is the average of the variance reductions of the conventional cross-spectral fitting for the ZZ, ZR, and RR components. The frequency range without the white shadow is used in the dispersion measurement. c Love wave dispersion curves estimated with model A. Taken from Takagi and Nishida (2022)