An Approach for the Validation of a Coastal Erosion Vulnerability Index: An Application in Sicily

In recent decades, coastal erosion phenomena have increased due to climate change. The frequency and intensity of extreme events the poor sediment supply by anthropized river basins (dams, weirs, culverts, etc.) a crucial role in erosion. Therefore, an integrated analysis is produce detailed accurate vulnerability information support mitigation strategies. This research aimed assess Sicilian coast, also including validation procedure obtained scenario. was computed means CeVI (Coastal Erosion Vulnerability Index) approach, which considers physical indicators such as geomorphology geology, slope, sea storms, wave maxima energy flux mouths. Each indicator quantified using indexes were assessed considering transects orthogonal coastline 2020. These clustered inside natural compartments called littoral cells. cell assumed contain complete cycle sedimentation not exchange with near Physical parameters identified define new index for coast. By (geological/geomorphological, erosion/sediment supply, etc.), calculated both each that fall into retreating/advancing areas. then validated comparing values change over time. study showed direct link between retreat high CeVI. proposed method allowed mapping vulnerability, it will be useful risk management purposes.