3D Approximate Joint Inversion of Refraction Traveltimes and Guided Wave Dispersion Data

P064 3D approximate joint inversion of refraction traveltimes and guided wave dispersion data Abstract 1 In the exploration of near-surface geological structures seismic waves play important role. As it is well-known seismic guided waves contain information about the structural- and material parameters of the wave-guide model so – using the methods of geophysical inversion – these characteristics can be determined by means of the frequency-dependent phase- and group velocity as well as absorption coefficient data. Similarly refraction seismic traveltimes are frequently used in solving engineering- and environmental geophysical problems. In this paper the approximate horizontal inversion method (Dobróka 2004) is