Near-surface VS structure by inversion of surface wave estimated from ambient seismic noise

摘要: In this study, 20 hours of ambient seismic noise recorded from a small-scale inter-station distance was used to obtain near-surface shear wave velocity structures at local test site in Tehran (Iran). High-resolution group dispersion curves using fundamental mode surface waves were calculated for all possible combinations station pairs frequencies ranging 1 Hz 25 Hz. Unlike most previous studies regarding noise, which observe very little coherent larger than Hz, the empirical Green’s functions extracted rootmean-square stacking method showing more signals. Our results indicate that is viable technique frequency range Hz–25 even when different sensor types are present. One-dimensional VSV and VSH models near then assessed by inverting Rayleigh Love waves’ measurements. We observed model agrees with available downhole shows three distinct layers upper m site.