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  • A WMS containing shadow reliefs of the ocean depths that also cover northern polar regions. Data from GEBCO_08 Grid, version 20100927,, and the Mareano project, The grid from Mareano is more up-to-date and also usually closer to Norwegian land areas or in Arctic areas. It is being continually expanded under the auspices of the Mareano project. ( * The terrain models are based on modern depth measurements by the use of multi-beam echosounders. * The terrain models are based on the average depth value in the area. The area which this data covers is the seabed along the coast of Northern Norway, north of 67 degrees north, and the parts of the ocean west in the Norwegian Sea. The coverage is limited to the areas which have been measured with modern equipment, that is, multi-beam echosounders. The General Bathymetric Chart of the Oceans (GEBCO) aims to provide the most authoritative, publicly-available bathymetry data sets for the world’s oceans. GEBCO operates under the auspices of the International Hydrographic Organization (IHO) and the Intergovernmental Oceanographic Commission (IOC) of UNESCO. The latest version of their grid is from 2014, a global 30 arc-second interval grid. Their one arc-minute interval grid was last updated in 2008. (Source in Norwegian: Data from the International Bathymetric Chart of the Arctic Ocean – IBCAO (netsite: Only useful for background information. Reference: Jakobsson, M., Macnab, R., Mayer, M., Anderson, R., Edwards, M., Hatzky, J., Schenke, H-W., and Johnson, P., 2008, An improved bathymetric portrayal of the Arctic Ocean: Implications for ocean modeling and geological, geophysical and oceanographic analyses, v. 35, L07602, Geophysical Research Letters, doi:10.1029/2008GL033520

  • This service includes topographical maps on a scale of 1:1 million.

  • Data from the GEBCO_08 Grid, version 20100927,, and the Mareano project,

  • Havdata fra ROMS Arctic 20km