Shear-wave imaging from traffic noise using seismic interferometry by cross-coherence

Nori Nakata, Roel Snieder, Ken Larner, Takeshi Tsuji, Toshifumi Matsuoka

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We apply seismic interferometry to traffic noise to retrieve both body waves and surface waves. Our preferred algorithm in the presence of highly variable and strong additive random noise uses cross-coherence, which uses normalization by the spectral amplitude of each of the traces, rather than cross-correlation or deconvolution. This normalization suppresses the influence of additive noise and overcomes problems resulting from amplitude variations among input traces. By using only the phase information and ignoring amplitude information, the method effectively removes the source signature from the extracted response and yields a stable structural reconstruction even in the presence of strong noise. This algorithm is particularly effective where the relative amplitude among the original traces is highly variable from trace to trace. We use the extracted reflected shear waves from the traffic noise data to construct a stacked and migrated image, and use the extracted surface waves Love waves to estimate the shear velocity as a function of depth. This shear-velocity profile agrees well with the interval velocity obtained from normal moveout of reflected shear waves constructed by seismic interferometry. These results are useful for a wide range of situations applicable in both geophysics and civil engineering.

Original languageEnglish
Pages (from-to)1580-1585
Number of pages6
JournalSEG Technical Program Expanded Abstracts
Volume30
Issue number1
DOIs
Publication statusPublished - Jan 1 2011
Externally publishedYes

Fingerprint

Shear waves
interferometry
Interferometry
traffic
S waves
S-wave
Imaging techniques
Surface waves
surface wave
surface waves
Geophysics
Additive noise
Deconvolution
Civil engineering
shear
Love waves
Love wave
geophysics
body wave
civil engineering

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

Cite this

Shear-wave imaging from traffic noise using seismic interferometry by cross-coherence. / Nakata, Nori; Snieder, Roel; Larner, Ken; Tsuji, Takeshi; Matsuoka, Toshifumi.

In: SEG Technical Program Expanded Abstracts, Vol. 30, No. 1, 01.01.2011, p. 1580-1585.

Research output: Contribution to journalArticle

Nakata, Nori ; Snieder, Roel ; Larner, Ken ; Tsuji, Takeshi ; Matsuoka, Toshifumi. / Shear-wave imaging from traffic noise using seismic interferometry by cross-coherence. In: SEG Technical Program Expanded Abstracts. 2011 ; Vol. 30, No. 1. pp. 1580-1585.
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