Rapid Archaeological Acquisition SystemArchaeology
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Example of finalised data - magnetic gradiometry (left) and interpretive plot (right), data canbe suppled in a variety of CAD and GIS formats
The Sensys rig can be towed by a variety ofvehicles from ATVs to tractors
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.
Up to 40 hectares a day
Geophysical archaeo-and logical by interpretationexperienced specialists
Twice the resolution of a conventional gradiometrysurvey
Survey results provided in CAD/GIS formats
TechnicalNote
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TerraDat (UK) Ltd - Tel (08707 303050)www.terradat.co.uk
Contact Simon Hughes for more info; [email protected]
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