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Application of Surface-Wave Methods for Seismic Site Characterization

Author: Sebastiano Foti, Stefano Parolai, Dario Albarello and Matteo Picozzi | Size: 2.85 MB | Format: PDF | Quality: Original preprint | Publisher: Surveys in Geophysics, Volume 32, Number 6 | Year: Published online: 3 June 2011 | pages: 49 (777-825)

Abstract
Surface-wave dispersion analysis is widely used in geophysics to infer a shear wave velocity model of the subsoil for a wide variety of applications. A shear-wave velocity model is obtained from the solution of an inverse problem based on the surface wave dispersive propagation in vertically heterogeneous media. The analysis can be based either on active source measurements or on seismic noise recordings. This paper discusses the most typical choices for collection and interpretation of experimental data, providing a state of the art on the different steps involved in surface wave surveys. In particular, the different strategies for processing experimental data and to solve the inverse problem are presented, along with their advantages and disadvantages. Also, some issues related to the characteristics of passive surface wave data and their use in H/V spectral ratio technique are discussed as additional information to be used independently or in conjunction with dispersion analysis. Finally, some recommendations for the use of surface wave methods are presented, while also outlining future trends in the research of this topic.

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