GPR Effectiveness Soil Map
Ground Penetrating Radar (GPR) technology is an effectively for locating subsurface anomalies. The material being scanned can greatly affect the effectiveness of the GPR scan results.
When scanning in concrete for instance, the age of the concrete can limit the scan depth of the Ground Penetrating Radar signal. The older the concrete the clearer and deeper the GPR signal will penetrate.
When surveying soil with Ground Penetrating Radar equipment, the makeup of the soil can limit the scan depth of the Ground Penetrating Radar signal. Dry sandy soils are best for quality scan results. Furthermore, wet soils, or clay soils can greatly hinder the scan effectiveness.
In 2009 United States Department of Agriculture published a map showing GPR general effectiveness in the continental United States. This map is a good guideline and should be considered before assuming Ground Penetrating Radar will work well in your area.