Fig. 6

Comparison of the initial 1-D shear wave velocity (\({V}_{S}\)) and inversion results at CSAD and SJUW. (a, b) Observed versus inverted dispersion curves at the CSAD and SJUW, respectively. Red lines represent theoretical curves, and black dashed lines indicate the inverted fits, along with their associated RMSE values. (c, d) Step plots of initial (black) and inverted (pink) 1-D \({V}_{S}\) profiles for CSAD and SJUW, respectively, highlighting layer-specific velocity adjustments through inversion.