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

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

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 引用 (Scopus)

抜粋

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.

元の言語英語
ホスト出版物のタイトルSociety of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011
出版者Society of Exploration Geophysicists
ページ1580-1585
ページ数6
ISBN(印刷物)9781618391841
出版物ステータス出版済み - 1 1 2011
外部発表Yes
イベントSociety of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011 - San Antonio, 米国
継続期間: 9 18 20119 23 2011

出版物シリーズ

名前Society of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011

その他

その他Society of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011
米国
San Antonio
期間9/18/119/23/11

All Science Journal Classification (ASJC) codes

  • Geophysics

フィンガープリント Shear-wave imaging from traffic noise using seismic interferometry by cross-coherence' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Nakata, N., Snieder, R., Larner, K., Tsuji, T., & Matsuoka, T. (2011). Shear-wave imaging from traffic noise using seismic interferometry by cross-coherence. : Society of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011 (pp. 1580-1585). (Society of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011). Society of Exploration Geophysicists.