S-waves profiles from noise cross correlation at small scale
作者： C. Nunziata , G. De Nisco , G.F. Panza
DOI: 10.1016/J.ENGGEO.2009.01.005
关键词: Seismic noise 、 Optics 、 Range (statistics) 、 Ranging 、 Cross-correlation 、 Rayleigh wave 、 Noise (radio) 、 Microseism 、 Geology 、 Seismic analysis 、 Geodesy
摘要: Abstract Cross correlations of ambient seismic noise recordings are studied to infer shear-wave velocities (VS) profiles versus depth. Experiments performed, over inter-station distances ranging from 60 m about 400 m, in the crowded and noisy historical centre Napoli, where conditions for use active (controlled source) spreadings prohibitive, even just one receiver. From cross correlation, group velocity dispersion curves extracted, with FTAN method, their non-linear inversion supplies VS The information nearby stratigraphies range variability samples Neapolitan soils rocks confirms validity reliability results obtained our expeditious procedure. If successfully tested other geological settings, proposed approach is a low cost methodology get reliable
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