Dictionary:Profiling

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A geophysical survey in which the measuring system is moved about an area (usually along lines) with the objective of characterizing lateral variations in the subsurface; mapping. Specifically, a resistivity, IP, or electromagnetic field method wherein a fixed electrode or antenna array is moved progressively along a traverse to create a horizontal profile of the apparent resistivity. Occasionally refers to vertical profiling or sounding (q.v.). See also profiler.