The dataset consists of hourly sea levels and surges over 1900-2015 in the North Atlantic, on a 0.1° grid (directory "HINDCAST" ) and extracted at 34 stations (directory “STATIONS”).

Hourly water level forecasts (Sea surface levelabove mean se level and meteorological surges) are computed by 2D barotropic hydrodynamic models (HYCOM 2D and Tolosa-SW). The data cover French coastal areas: Atlantic/English Channel/North Sea, Mediterranean, Antilles-Guyane and Indian Ocean (Mayotte, Reunion Island). Spatial resolution ranges from several kilometers offshore to up to 100 m near the coasts.