The high resolution topographic model of Panarea Island (Italy)

Aerial digital photogrammetry, aerial laser scanning and multibeam bathymetry, play a fundamental role in the generation of Digital Terrrain Models (DTM) of subaerial and submarine areas. Integrating these survey techniques is crucial for providing accurate and homogeneous digital terrain models along narrow coastal zones that often cannot be adequately surveyed due to logistical limitations of collecting bathymetric data in shallow water. In this poster, three aerial photogrammetric surveys, two multibeam bathymetric surveys and a LIDAR survey are analyzed and integrated together to generate the first 3D high resolution DTMM (Digital Terrain and Marine Model) of the volcanic island of Panarea (Aeolian islands, Italy). This is an active area that underwent a submarine gas eruption on November 2002, and produced impacts on the environment and potential hazards for the local population. Our DTMM shows the morphological features of this volcanic area at an average grid size resolution of 1 m and a maximum elevation error of 1 m. Here we show and discuss our integrated DTMM co-registered in the same reference system. This DTMM will significantly improve geophysical and geomorphological studies of this active volcanic island for reducing hazard