Seismic interferometry in the presence of an isolated noise source

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Authors

Sven Schippkus, Roel Snieder, Celine Hadziioannou

Abstract

Seismic interferometry gives rise to a correlation wavefield that is closely related to the Green's function under the assumption of uniformly distributed noise sources. In the presence of an additional isolated noise source, a second contribution to this wavefield is introduced that emerges from the isolated source location at negative lapse time. These two contributions interfere, which may bias surface wave dispersion measurements significantly. To avoid bias, the causal and acausal parts of correlation functions need to be treated separately. We illustrate this by applying seismic interferometry to field data from a large-N array where a wind farm is present within the array.

DOI

https://doi.org/10.31223/X57W76

Subjects

Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics

Keywords

Dates

Published: 2022-07-03 21:00

Last Updated: 2022-07-04 04:00

License

CC BY Attribution 4.0 International

Additional Metadata

Data Availability (Reason not available):
Due to a non-disclosure agreement with OMV E&P GmbH, the authors cannot make the data used in this study publicly available.

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