Ground Penetrating Radar

Ground penetrating radar is an excellent non-intrusive technique that allows for the location, identification and mapping of a variety of structures buried underground. GPR surveys provide valuable information that can be interpreted on site with minimal data processing (either in real-time or off-site). Check this out:gpr-survey.uk

The system works by firing electromagnetic pulses into the ground at high rates. The resulting signal is then measured by an antenna and recorded in a computer. The radar pulses are reflected by subsurface materials and objects, causing contrasts and distortions in the resulting GPR image. The resulting images are often wavy and look like a radar graph with a series of arch-shaped traces that can identify the locations and types of pipes, tanks, wires, concrete reinforcing elements, graves, or buried artifacts.

Exploring Archaeological Applications of Ground Penetrating Radar

GPR can detect changes in the soil structure, such as excavated areas and back-filled areas. It can also detect voids, pipe locations, metal conduits, rebar and other structures. Depending on the frequency of the radar and the dielectric/conductive properties of the material being tested, different structures can be detected at different depths.

Although GPR is a useful tool for surveying the subsurface, it is not always accurate in determining what specific shapes are located. The ability to determine the actual shape of a found object requires experience, good judgement and knowledge of the equipment. GPR is used for a wide range of applications, from helping professionals locate telecommunication lines to academics exploring archaeological sites.