Combination of Passive and Active Methods Towards Site Characterization of Accelerometer Stations in Greece

Summary The present work deals with the inversion of HVSR. curves to obtain shear wave velocity profiles and how a priori information could be incorporated to facilitate the H/V inversion procedure. The inversion is conducted using the “HV-Inv” computer code (Garcia-Jerez et al., 2016), which is based on the Diffuse Field Assumption and uses the relation between the HVSR and the elastodynamic Green’s function. This code is packed with 3 global (Monte Carlo sampling, Simulated Annealing and Modified Simulated Annealing) and 2 local (Simplex Downhill, Interior Point) inversion methods. Three test groups with different properties and with all 5 inversions methods are examined to test various capabilities of the software. A final test is conducted using the experience of the previous ones, achieving inversions with lower misfit.