Skip to Main content Skip to Navigation
Journal articles

Small-scale seismic inversion using surface waves extracted from noise cross correlation

Abstract : Green's functions can be retrieved between receivers from the correlation of ambient seismic noise or with an appropriate set of randomly distributed sources. This principle is demonstrated in small-scale geophysics using noise sources generated by human steps during a 10-min walk in the alignment of a 14-m-long accelerometer line array. The time-domain correlation of the records yields two surface wave modes extracted from the Green's function between each pair of accelerometers. A frequency–wave-number Fourier analysis yields each mode contribution and their dispersion curve. These dispersion curves are then inverted to provide the one-dimensional shear velocity of the near surface.
Document type :
Journal articles
Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/insu-00333892
Contributor : Pascale Talour <>
Submitted on : Friday, October 24, 2008 - 1:02:14 PM
Last modification on : Wednesday, October 14, 2020 - 4:09:34 AM

Links full text

Identifiers

Collections

Citation

Pierre Gouedard, P. Roux, Michel Campillo. Small-scale seismic inversion using surface waves extracted from noise cross correlation. Journal of the Acoustical Society of America, Acoustical Society of America, 2008, 123 (3), pp.EL26 à EL31. ⟨10.1121/1.2838251⟩. ⟨insu-00333892⟩

Share

Metrics

Record views

174