bubble pulse

bubble pulse

[′bəb·əl ‚pəls]
(geophysics)
An extraneous effect during a seismic survey caused by a bubble formed by a seismic charge, explosion, or spark fired in a body of water.
References in periodicals archive ?
Underwater explosions send out a distinctive pattern of pressure waves known as a bubble pulse, which stems from oscillations in the rising bubble of hot gases Because water is a nearly incompressible fluid, the pressure pulses from even small underwater blasts can generate strong seismic signals when they strike the lake or ocean bottom.
Also, he contends, simple collisions wouldn't create a bubble pulse.
The seismic data captured by the European instruments include two bubble pulses.