Coastal Modification in Relation to Sea Storm Effects: Application of 3D Remote Sensing Survey in Sanremo Marina (Liguria, NW Italy)

摘要: Integrated remote sensing techniques, such as photogrammetry from unmanned aerial vehicles (UAV), mobile laser scanners (MLS) and multibeam echosounders (MBES), are particularly effective in detecting measuring coastal seabed features their modifications over time (4D analysis) induced by sea storms. In fact, these techniques allow the production of very high-resolution 3D models, with a continuum between above below level. The present research is focused on area Portosole Marina (Sanremo, Western Liguria), affected severe storm October 2018 following restoration. Two integrated surveys were performed February 2019 November 2019, obtaining accurate reliable high-definition digital surface models (DSMs) both emerged submerged areas. comparison two highlighted volumetric changes effects temporary worksite breakwater. particular, total deficit sediments about 5000 m3 caused an average lowering 4 cm entire area, concurring breakwater instability. This study aims to contribute understanding system resilience within ongoing global climate changes, that is, increasing intensity extreme events Mediterranean area.