Esperienze di rilievi UAV per la prevenzione del rischio ambientale

In this paper the results of UAV surveys carried out in two areas of Apulian territory affected by serious environmental hazard are presented. The survey has been carried out with an "esacopter" equipped with a CANON EOS 550D and a GNSS satellite positioning system. The first study area is an ancient Aragonese watchtower of the seventeenth century, located near the Abbey of San Vito in the countryside of Polignano a Mare (in the province of Bari, Southern Italy). Then, the UAV survey has been carried out along about 1 km of coast in the Salento peninsula, near the towns of San Foca, Torre dell'Orso and Sant'Andrea ( Lecce, Southern Italy). This area is affected by serious environmental risks due to the presence of dangerous rocky cliffs named "falesie". The high accuracy of the detected images processed with Agisoft Photoscan allowed the structural characterization and the stability analysis of each site.