From Pseudo-3D to full-resolution GPR imaging in archaeology: A complex Roman site in Lugo, Spain

This case study demonstrates how extra effort on data acquisition can beneficiate advanced interpretation of 3D GPR data over a complex Roman site situated in a semi-urban area. Two 250 MHz surveys during May 2007 and July 2008 were accomplished after Roman wall remains had been found by chance during soil remove works at Agro da Ponte (Lugo, NW Spain). First campaign covered the whole area by using a pseudo-3D strategy which was only enough for defining the areas of interest and some archaeological features. According to those results, next campaign was focused on a smaller area and based on an ultra-dense grid strategy which eventually revealed full-resolution images of walls, apses and chambers of a Roman villa.