WMS service for electronic nautical charts. Includes the official electronic navigation charts (ENC). These electronic nautical charts are produced in accordance with the International Hydrographic Organization's (IHO) standard for the exchange of digital nautical chart information, S57. The WMS service is updated regularly.

Regular grids with 50m x 50m resolution which show the terrain variation on the seafloor in Norwegian sea/ocean areas. The grid model was generated by interpolating the original depth data from the primary database of the Norwegian Mapping Authority Hydrographic Service. Therefore the data has varying quality with regard to the reliability of both the positions and the depths.