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1. n. [Geophysics]

The portion of the seismic wave that contains desirable information. Noise is the undesirable information that typically accompanies the signal and can, to some extent, be filtered out of the data.

See: acoustic coupleracquisitionaliasingautocorrelationbelcheck-shot surveycouplingdecibeldynamic rangefilterfilterfrequencyinversionnoisepolarity standardprocessingsignal-to-noise ratioStoneley wavetraveltimezero crossing