Ground penetrating radar (GPR) can typically see depths ranging from a few centimeters to about 15 meters (50 feet) under ideal conditions. Actual depth penetration depends on several factors, including radar wave frequency, soil composition, and the presence of moisture.
The depth to which GPR can see varies depending on the specific application and environmental conditions. Under favorable conditions with dry, sandy soils, GPR can reach depths of up to 15 meters.
In less ideal conditions, such as in clay-rich or wet soils, depth penetration can be greatly reduced, often limited to a few meters.
The survey depth of ground penetrating radar is influenced by the frequency of the radar signal. Low-frequency radar waves (e.g., 50-500 MHz) penetrate deeper but provide lower resolution, suitable for studying deeper structures.
Higher frequency waves (e.g., 500 MHz to several GHz) provide higher resolution but with shallower depth penetration, ideal for detailed studies of near-surface features.
Limitations of ground penetrating radar include reduced effectiveness in conductive materials like clay or wet soils, where the radar signal is quickly attenuated. Higher signal frequencies provide better resolution but limit depth penetration. Additionally, interpretation of GPR data can be complex, requiring skilled operators and post-processing to accurately identify subsurface features.
The presence of metal objects or other strong reflectors can also create signal clutter, complicating data analysis