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This research article analyzes seismic ambient noise recorded by a distributed acoustic sensing (DAS) array to estimate the direction of noise sources and the ratio of Rayleigh to Love waves. Synthetic examples are used to demonstrate the importance of correcting for amplitude imbalances and polarity reversals in DAS data to obtain reliable beamforming results. The proposed method is then applied to field DAS data to resolve the main noise source direction and determine that Love waves dominated.

Author

Salvador Vam

Language

EN