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noise

1. n. [Geophysics]

Anything other than desired signal. Noise includes disturbances in seismic data caused by any unwanted seismic energy, such as shot generation ground roll, surface waves, multiples, effects of weather and human activity, or random occurrences in the Earth. Noise can be minimized by using source and receiver arrays, generating minimal noise during acquisition and by filtering and stacking data during processing.

See: aliasingbubble effectcoherence filteringcoherent noisecommon midpoint methodcultural noisedeep towembedded waveletfilterfilterground rollinversionlong-path multiplemultiple reflectionmutepeg-leg multiplerandom noiserecordseismic-while-drilling vertical seismic profileshort-path multiplesignal-to-noise ratiosmilestacksuppressionsurface wavetail mute

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