Mapping the underwater and the coast: Modern methods and technologies for bathymetry calculation and sea-bottom profiling

The sea around us hides and laps a good part of our heritage, as many ancient settlements were located close to past shores; indeed, cases are not rare where sites are now made invisible by water level changes and coastal erosion processes. If the invisibility protects past constructions and submerged finds from looting, the water body –with its constant movement and its salinity and flora/ fauna– causes also damages to the built heritage, particularly to the elements emerging from the sea-bottom