MIS 5.5 Highstand and Future Sea Level Flooding at 2100 and 2300 in Tectonically Stable Areas of Central Mediterranean Sea: Sardinia and the Pontina Plain (Southern Latium), Italy

Areas of the Mediterranean Sea are dynamic habitats in which human activities have been conducted for centuries and feature micro-tidal environments with about 0.40 m range. For this reason, settlements still concentrated along a narrow coastline strip, where any change sea level coastal dynamics may impact anthropic activities. We analyzed light detection ranging (LiDAR) Copernicus Earth observation data. The aim research is to provide estimates detailed maps (in three plain Sardinia (Italy) Pontina Plain (southern Latium, Italy) of: (i) past marine transgression occurred during MIS 5.5 highstand 119 kyrss BP; (ii) regression last glacial maximum 2 (21.5 krs cal BP); (iii) potential submersion 2100 2300. objective multidisciplinary study rise future scenarios using IPCC RCP 8.5 2019 projections glacio-hydro-isostatic movements above selected zones (considered tectonically stable), locations touristic resorts, railways heritage sites. estimated loss land areas between 146 km2 (IPCC 2019-RCP8.5 scenario) 637 length 268 km.