In close collaboration with GPR equipment manufacturers MALÅ Geoscience and Sensors & Software, two different novel multichannel GPR systems (MIRA and SPIDAR) have been evaluated, motorized, adapted and optimized for use in efficient large-scale prospection. Very dense GPR data acquisition with 4×8 cm, 4×10 cm or 5×25 cm has become possible at unprecedented daily coverage rates of up to five hectares. These cutting-edge GPR systems were thoroughly tested and continuously improved in the framework of the large-scale case studies.
Several RealTimeKinematic-GPS systems as well as a total-station were tested within the case studies. Repeated surveys at Carnuntum and in Vestfold (Kaupang) demonstrated the improvements made in regard to data positioning accuracy.
By September 2013, the large-scale archaeological geophysical prospection within the LBI ArchPro case studies and associated projects has reached a total coverage of 31.63 km2 at unprecedented spatial measurement resolution (26.25 km2 magnetics and 5.38 km2 GPR).
Areas of special archaeological interest within the case studies Carnuntum, Birka-Hovgården, Uppåkra, Vestfold and Stonehenge have been covered with manually operated CS magnetometer and/or GPR systems, and this data was integrated with the large-scale motorized prospection data sets.
The department of Soil Sciences of Ghent University (OrBit), in collaboration with the LBI ArchPro in the framework of the case studies Carnuntum and Stonehenge, acquired state-of-the-art electromagnetic data at a large scale, providing complimentary information on the magnetic susceptibility and apparent electrical conductivity of the ground.
Manual magnetic susceptibility measurements were conducted for improved understanding of the properties of archaeological structures compared to the geological background within the case studies Birka-Hovgården, Uppåkra, Vestfold and Kreuttal.