GPR Prospecting Close to a Roman Amphitheatre in an Urban Environment

In the present contribution we will present the results of a GPR [1-3] measurement campaign performed in St. Oronzo Square, Lecce, Italy, aimed to investigate and monitor the status of the Roman amphitheatre present in the square. The “ambulacra” of this amphitheatre in particular are currently buried under the square and only partially accessible. Also, further part of the amphitheatre are still buried, and cannot be excavated because of the presence of posterior structures, in some cases of historical relevance in their turn. The georeferencing of the results has been achieved in QGIS. Indeed, no GPS was available when the measurements were performed. However, the shape of the prospected areas, wedged in the ways around the amphitheatre has allowed a correct georeferencing. A home-made MATLAB code has helped to this pros.

 

References

[1] R. Persico, S. D'Amico, L. Matera, E. Colica, C. De, Giorgio, A. Alescio, C. Sammut and P. Galea, GPR Investigations at St John's Co-Cathedral in Valletta, Near Surface Geophysics 17, 3, 2019, pp. 213-229. doi: 10.1002/nsg.12046.

[2] E. Colica, A, Antonazzo, R. Auriemma, L. Coluccia, I. Catapano, G. Ludeno, S. D’Amico, R. Persico, GPR Investigation at the Archaeological Site of Le Cesine, Lecce, Italy, Information 2021, 12, 412, https://doi.org/10.3390/info12100412

[3] G. Gennarelli, I. Catapano, F. Soldovieri, R. Persico, On the Achievable Imaging Performance in Full 3-D Linear Inverse Scattering, IEEE Trans. on Antennas and Propagation,  63, 3, March 2015, pp. 1150-1155.