Aerial Photography and LiDAR
LiDAR stands for Light Detection and Ranging and is used to collect topographic data. Lasers mounted on aircraft are used to map physical features to a very high resolution and are accompanied by high quality aerial photography. The Trust was very fortunate in obtaining LiDAR data of the site and its immediate environ during 2006. This is a relatively new resource in archaeology and offers a means of producing high precision, 3D images of the ground surface. The data, once processed by computer, forms a model of the landscape over which the accompanying graphics can be ‘draped’.
The digital images reveal in great detail, the site’s buried features and their relationship to the changes in contour and shape on the surface of the land. This technique provides a result that is more accurate and precise than any data retrieved in a manual survey, or by using other digital survey techniques. The images of Yeavering showed, in precise detail, the very low-lying remains of land boundaries and enclosures on the site.