1. n. [Geophysics]

A type of coherent noise generated by a surface wave, typically a low-velocity, low-frequency, high-amplitude Rayleigh wave. Ground roll can obscure signal and degrade overall data quality, but can be alleviated through careful selection of source and geophone arrays, filters and stacking parameters.

See: acquisition,  array,  coherent noise,  mute,  random noise,  Rayleigh wave,  stack,  surface wave,  tail mute,  water-bottom roll