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