RICOSTRUZIONE DEL PALEOALVEO DEL FIUME SERCHIO (LUCCA, ITALIA) TRAMITE RILIEVI LIDAR, FOTO AEREE ED IMMAGINI QUICK BIRD

Abstract

R. Salvini, E. Guastaldi, N. Coscini, N. Del Seppia, Lidar survey, aerial photos and Quick Bird satellite images for the
palaeodrainage reconstruction of Serchio river (Lucca, Italy). (IT ISSN 0394-3356, 2007).
In this work the palaeodrainage reconstruction of Serchio River has been performed, starting from present and historical geomorphological evidences. For this, aerial photos, orthophotos, Quick Bird satellite imageries, integrated with historical references have been utilized.
The orthorectification of all the imageries have been performed by utilizing a DEM (Digital Elevation Model) resulting from the elaboration of numeric topography at a scale of 1:10,000, topographic surveys (DGPS and levelling), and LIDAR aerial survey done in February and March 2005.
By the remote sensing data interpretation, the palaeodrainage channels of Serchio River have been reconstructed at a large scale for
the whole area of Lucca plain. Through a GIS the whole dataset have been managed as geo-database, in order to highlight the spatial
and temporal variations of palaeodrainage of Serchio River, producing thematic cartography.
LIDAR survey allowed us to generate a DDTM, 1m of spatial resolution, which has been utilized for three-dimensional elaborations, carried out in order to highlight the lowered areas in the Lucca plain, which correspond to the palaeodrainage of Serchio River.