TechnicalNote Rapid Archaeological Acquisition System
TerraDat’s archaeological capability has been recently enhanced through the use of a specialist magnetic gradiometry carrier system. This system utilises eight Foerster FEREX CON 650 gradiometer probes mounted on a towed rig. Real-time, sub-centimetre accurate positioning is provided by a Trimble 5700 RTK GPS. The rig is towed across the survey area behind a 4x4 vehicle or ATV acquiring swaths of data up to 3.5m wide. The probes are spaced 0.5m apart giving twice the resolution of a conventional gradiometry survey. In optimal field conditions, the new system allows acquisition rates of up to 40 hectares per day - significantly reducing survey costs and time over a conventional walked survey. As one of Europe’s leading environmental geophysical contractors, TerraDat’s enhanced processing and interpretation capabilities allow datasets to be further interrogated to provide information on a variety of site hazards such as shallow UXO, mine workings and buried structures and services.
*Cost Effective *Non-invasive *Rapid Ground Coverage *Environmentally Friendly *Swift Mobilisation/Global Coverage
, Up to 40 hectares a day
Hedge Ht=2.2m 57.65 57.64
The Sensys rig can be towed by a variety of vehicles from ATVs to tractors
, Geophysical and archaeological interpretation by experienced specialists , Twice the resolution of a conventional gradiometry survey , Survey results provided in CAD/GIS formats
Example of finalised data - magnetic gradiometry (left) and interpretive plot (right), data can be suppled in a variety of CAD and GIS formats Contact Simon Hughes for more info; email@example.com
TerraDat (UK) Ltd - Tel (08707 303050) www.terradat.co.uk
TerraDat is a UK based specialist geophysical ground exploration company that operates worldwide. Geophysical surveys provides a rapid, non-...