Determination of the optimal initial parametrization for inversion of surface wave dispersion curves in deep basins (Case study: Tehran)

In this paper, we examined the influence of initial parametrization in the inversion of surface wave dispersion curves. First, the steps for choosing the most desirable parameters are described. Then, the influence of parametrization is investigated using two experimental approaches and also a systematic approach to find a consistent solution. The final results show that suitable values for initial parameters considering some basic principles and local site conditions can reduce the uncertainty in the final results. However, this uncertainty also strongly depends on a-priori information that could be implemented in the parametrization and also the inversion process.