P-Wave Refraction (aka Compression Wave Refraction)
P-wave refraction evaluates the compression wave generated by the seismic source located at a known distance from the array. The wave is generated by vertically striking a striker plate with a sledgehammer, shooting a seismic shotgun into the ground, or detonating an explosive charge in the ground. Since the compression wave is the fastest of the seismic waves, it is sometimes referred to as the primary wave and is usually more-readily identifiable within the seismic recording as compared to the other seismic waves.
Read more about this topic: Seismic Refraction
Famous quotes containing the words compression and/or wave:
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—Ralph Waldo Emerson (1803–1882)
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—William Shakespeare (1564–1616)