A new composite DTM (Version 5) of bathymetric data in the Belgian Continental Shelf (BCS) was created by the Flemish Hydrography on September 1, 2016. The grid resolution is 20x20m. The vertical reference plane is LAT (Lowest Astronomical Tide). Following nautical data layers are also provided: * Baseline * Coastline * Depth Lines and areas * Buoys and wrecks * Country Information * Cables and pipelines * Traffic Routes