TY  - JOUR
A1  - Foti, Sebastiano
A1  - Hollender, Fabrice
A1  - Garofalo, Flora
A1  - Albarello, Dario
A1  - Asten, Michael
A1  - Bard, Pierre-Yves
A1  - Comina, Cesare
A1  - Cornou, Cecile
A1  - Cox, Brady
A1  - Di Giulio, Giuseppe
A1  - Forbriger, Thomas
A1  - Hayashi, Koichi
A1  - Lunedei, Enrico
A1  - Martin, Antony
A1  - Mercerat, Diego
A1  - Ohrnberger, Matthias
A1  - Poggi, Valerio
A1  - Renalier, Florence
A1  - Sicilia, Deborah
A1  - Socco, Valentina
T1  - Guidelines for the good practice of surface wave analysis
BT  - a product of the InterPACIFIC project
JF  - Bulletin of earthquake engineering : official publication of the European Association for Earthquake Engineering
N2  - Surface wave methods gained in the past decades a primary role in many seismic projects. Specifically, they are often used to retrieve a 1D shear wave velocity model or to estimate the V-s,V-30 at a site. The complexity of the interpretation process and the variety of possible approaches to surface wave analysis make it very hard to set a fixed standard to assure quality and reliability of the results. The present guidelines provide practical information on the acquisition and analysis of surface wave data by giving some basic principles and specific suggestions related to the most common situations. They are primarily targeted to non-expert users approaching surface wave testing, but can be useful to specialists in the field as a general reference. The guidelines are based on the experience gained within the InterPACIFIC project and on the expertise of the participants in acquisition and analysis of surface wave data.
KW  - Rayleigh waves
KW  - MASW
KW  - Ambient vibration analysis
KW  - Site characterization
KW  - Shear wave velocity
KW  - V-S,V-30
Y1  - 2017
U6  - https://doi.org/10.1007/s10518-017-0206-7
SN  - 1570-761X
SN  - 1573-1456
VL  - 16
IS  - 6
SP  - 2367
EP  - 2420
PB  - Springer
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Di Giulio, Giuseppe
A1  - Savvaidis, Alexandros
A1  - Ohrnberger, Matthias
A1  - Wathelet, Marc
A1  - Cornou, Cecile
A1  - Knapmeyer-Endrun, Brigitte
A1  - Renalier, Florence
A1  - Theodoulidis, Nikos
A1  - Bard, Pierre-Yves
T1  - Exploring the model space and ranking a best class of models in surface-wave dispersion inversion application at European strong-motion sites
JF  - Geophysics
N2  - The inversion of surface-wave dispersion curve to derive shear-wave velocity profile is a very delicate process dealing with a nonunique problem, which is strongly dependent on the model space parameterization. When independent and reliable information is not available, the selection of most representative models within the ensemble produced. by the inversion is often difficult. We implemented a strategy in the inversion of dispersion curves able to investigate the influence of the parameterization of the model space and to select a "best" class of models. We analyzed surface-wave dispersion curves measured at 14 European strong..-motion sites within the NERIES EC-Project. We focused on the inversion task exploring the model space by means of four distinct pararneterization classes composed of layers progressively added over a half-space. The classes differ in the definition of the shear-wave velocity profile; we considered models with uniform velocity as well as models with increasing velocity with depth. At each site and for each model parameterization, we performed an extensive surface-wave inversion (200,100 models for five seeds) using the conditional neighborhood algorithm. We addressed the model evaluation following the corrected Akaike's information criterion (AlCc) that combines the concept of misfit to the number of degrees of freedom of the system. The misfit was computed as least-squares estimation between theoretical and observed dispersion curve. The model complexity was accounted in a penalty term by AlCc. By applying such inversion strategy on 14 strong-motion sites, we found that the best parameterization of the model space is mostly three to four layers over a half-space: where the shear-wave velocity of the uppermost layers can follow uniform or power-law dependence with depth. The shear-wave velocity profiles derived by inversion agree with shear-wave velocity profiles provided by borehole surveys at approximately 80% of the sites.
Y1  - 2012
U6  - https://doi.org/10.1190/GEO2011-0116.1
SN  - 0016-8033
VL  - 77
IS  - 3
SP  - B147
EP  - B166
PB  - Society of Exploration Geophysicists
CY  - Tulsa
ER  -