Geophysical method
GPR
Ground-penetrating radar
For when you need to know not just that something is there, but exactly where and how deep.
How it works.
An antenna emits a short electromagnetic pulse into the ground. At every interface — a change of material, a void, a slab, a pipe — part of the wave reflects and returns to the antenna. Travel time gives the depth.
Our array aligns a series of antennas spaced 8 to 16 cm apart, producing a dense data volume rather than isolated profiles. The physical trade-off: highly conductive ground — wet clay, saline soil — absorbs the wave and limits penetration.
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Antenna spacing
8 to 16 cm
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Resolution
The finest in the catalogue
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Favourable ground
Sand, gravel, resistive soils
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Deliverable
Profiles and time slices
What it reveals.
- Buried utilities, metallic or not
- Slabs, rafts and foundations
- Cavities and voids
- Field drains
- Masonry and archaeological levels
Where we use it.
As a targeted complement, where resistivity has flagged an anomaly that needs pinning down.
An anomaly to pin down?
Let's talk target, expected depth and ground conditions.