Collection and analysis of historical data on shoreline evolution at the sites of Ravenna, Cesenatico and Rimini

The analyses of the three sites selected for simulation models on a local scale show the effects on the coastline caused by a rise in sea level due to eustatism, storm-surges, natural subsidence, and subsidence caused by anthropic activity. The cities present various problems regarding the morphological evolution of the coastline. These problems are linked firstly to natural factors and secondly to the influence of various human activities related both the use of territorial resources (extraction of fluids from the subsurface, excavation of inert materials from river-beds, stabilization of montane basins) and to the construction of major coastal works (port piers and interventions to fight erosion). The sites have been described by analysing the various structures which help to modify the coastal morphology, the evolution in time up to the most recent modifications, and also the current state of the beaches. The subjects are divided into two main themes (sea works and beach structure) rather than treat each site individually. The final scope of the work is to demonstrate how structural interventions along the coasts at the selected sites and the evolution of their sandy shores have proceeded at the same rate and have influenced one another.