Surface wave retrieval from ambient noise using multi-dimensional deconvolution

Conference paper (2010)

Authors

J.R. van der Neut Applied Geophysics and Petrophysics -

E.N. Ruigrok Applied Geophysics and Petrophysics -

D.S. Draganov Applied Geophysics and Petrophysics -

J.W. Thorbecke Applied Geophysics and Petrophysics -

J.W. Hunziker Applied Geophysics and Petrophysics -

C.P.A. Wapenaar Applied Geophysics and Petrophysics - ,

Research Group

Applied Geophysics and Petrophysics () (TU Delft)

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Published Date

01-01-2010

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Applied Geophysics and Petrophysics

Abstract

Seismic interferometry is an effective tool to retrieve surface waves between two receiver stations by cross-correlating ambient background noise over sufficiently long recording times. This method assumes an azimuthally uniform distribution of noise sources. Unfortunately this assumption is not always fulfilled in practice. If noise sources are located on one side of a receiver array only, surface waves can also be retrieved by multi-dimensional deconvolution of passive records. We show how this method can effectively correct for azimuthal variations in the noise source distribution. We do not take backscattering of the surface waves into account, but this can be overcome if wavefield decomposition is incorporated.