Coastal topo-bathymetric MNT of Pertuis Charentais (HOMONIM project)

The update of the coastal topo-bathymetric NTM of Pertuis charentais at a resolution of 0.0002° (~ 20 m) was carried out as part of the HOMONIM phase 3 project. The NTM extends from the terrestrial domain to about 60 m deep over all the pertuis (pertuis Breton, pertuis d’Antioch and pertuis de Maumusson). It is intended to be implemented in hydrodynamic models to produce as accurate forecasts as possible of the heights of water and sea states to the coast in order to improve the relevance of the Vigilance Vagues-Submersion. This product is available with the lowest astronomical sea level (PBMA) or mean sea level (NM) as a vertical reference.