Potentialities of integrated 3D surveys applied to maritime infrastructures and to the study of morphological/sedimentary dynamics of the seabed.

The potentialities of an integrated 3D remote sensing survey with the most diffuse techniques, i.e. photogrammetry from UAV, laser scanner and multibeam from survey boat, are enhanced. Such techniques are useful both to verify the state of conservation of maritime infrastructures from a structural point of view and to highlight the phenomena of erosion or accumulation of sediments at the base. The case study relative to the breakwater of the “Porto Sole” private tourist port and the seabed facing it along the Sanremo coast (Imperia, Italy) is shown. The produced 3D model at centimetric resolution both of emerged and submerged areas describes the maritime infrastructure and allows to recognize and measure the seabottom forms. Hence, it results a valid aid for the study of morphological and sedimentary dynamics of the seabed.