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peg-leg multiple

1. n. [Geophysics]

A type of short-path multiple, or multiply-reflected seismic energy, having an asymmetric path. Short-path multiples are added to primary reflections, tend to come from shallow subsurface phenomena and highly cyclical deposition, and can be suppressed by seismic processing. In some cases, the period of the peg-leg multiple is so brief that it interferes with primary reflections, and its interference causes a loss of high frequencies in the wavelet.

See: eventlong-path multiplemultiple reflectionnoiseprimary reflectionprocessingshort-path multiple

Diagram of multiple reflections
Diagram of multiple reflections.

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