Useful Applications of Ground Penetrating Radar

Ground penetrating radar (GPR) is state-of-the-art equipment used for exploring the subsurface of the earth. The cutting-edge imaging technology found in high-end GPR systems measures electromagnetic wave propagation and echo from the subsurface, which images and identifies changes in the magnetic and electrical properties beneath the surface of the earth. Hence, GPR systems are useful in locating underground utility lines in earth or post tensioning and reinforcing in concrete. Ground penetrating radar is surprisingly versatile for many other applications, including forensic research, land surveying, detecting unexploded land mines, conducting groundwater studies, and monitoring the structural integrity of airplane runways.



GPR is useful in many different fields. It is used to study ice, groundwater, soil, and bedrock under earth sciences and it may be helpful in finding diamonds and gold nuggets in alluvial gravel beds. In that case, ground penetrating radar is used to find natural traps in stream beds where heavy particles can accumulate. Space exploration has found some use for GPR, Yutu a Chinese lunar rover had a GPR on board to investigate the moon’s crust and soil.

Engineering applications for ground penetrating radar include locating buried utility lines and structures, non-destructive testing of pavements and structures, and identifying the characteristics of bedrock and soil. GPR is used in environmental remediation to determine the best sites for landfills and contaminant plumes. In archaeology, ground penetrating radar is helpful in mapping cemeteries, finding buried structures, and determining archaeological features. In law enforcement, GPR is valuable for finding buried evidence and locating unidentified or unmarked graves.

The military uses ground penetrating radar to find tunnels and mines. The reason why GPR is preferred for these applications is due to its speedy ability to acquire and produce data compared to other conventional geophysical methods. Hence, operators can easily and quickly produce measurements repeatedly, which can be crucial when determining rapid changes.

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