Ground Penetrating Radar (GPR)

• Price: Price on application

We own a 250MHz, Canadian Sensors and Software, Ground Penetrating Radar (GPR) along with a cart for rolling it across the ground. In less saline ground it finds pipes, metal, disturbance in soil and various soil profile boundaries. It detects concrete reinforcement bars yet a 500 to 1000 MHz GPR is better for such applications. GPS data can be collected with the GPR data to make time slice maps and other presentation products for superimposing on air-photos.

GPR can sense moisture changes, but the theory and application are both hard and fraught with conceptual ambiguity because it is mainly returning reflections of contrasts in moisture rather than the moisture itself. Effectively it provides a really descriptive picture revealing soil moisture distribution but is poor at detecting absolute moisture levels.

The GPR also is suitable, when floated in a plastic film bottomed boat, of resolving sludge thickness in ponds and channels.