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1. n. [Geophysics]

A technique for acquisition of seismic data beneath areas that are difficult to access at the surface of the Earth, such as near rivers, drilling rigs, production platforms, environmentally sensitive areas or around seismically problematic features such as salt domes, which introduce uncertainty because of their high velocity. The sources and receivers are located on opposite sides of the feature.

See: acquisitionreceiversource

Schematic diagram of undershooting.
Schematic diagram of undershooting.

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