Ground Penetrating Radar
Definition - What does Ground Penetrating Radar mean?
Ground penetrating radar (GPR) refers to a device used to perform geophysical inspections of the earth's surface via the use of electromagnetic radiation to capture soil images. GPR is used to assess the appropriateness of installing pipelines in a particular location and to inspect pipelines for deterioration and corrosion.
Corrosionpedia explains Ground Penetrating Radar
Ground penetrating radar (GPR) is a nondestructive and nonintrusive technological approach that makes use of microwave frequencies to capture images of soil topography. It can be used for a wide range of media, both naturally occurring (e.g., rocks and lakes) and artificially occurring (e.g., roads and pavements).
GPR is particularly useful for industrial applications where subsurface details must be thoroughly examined before laying pipelines. For example, a natural environment that contains significant underground water deposits is a less than ideal place to lay pipes because the corrosion rates of the pipes would be high. Similarly, GPR can be used to inspect existing pipes for the duration of their active lifespan. Soil corrosion may also be profiled using GPR.