United Nations Educational, Scientific and Cultural Organization (UNESCO) Intergovernmental Oceanographic Commission - International Hydrographic Organization - General Bathymetric Chart of the Oceans (GEBCO)

General Bathymetric Chart of the Oceans (GEBCO) aims to provide the most authoritative publicly-available bathymetry of the world's oceans. It operates under the joint auspices of the International Hydrographic Organization(IHO) and the Intergovernmental Oceanographic Commission (IOC) (of UNESCO).GEBCO produces data sets and products including global gridded bathymetric data sets, GEBCO Gazetteer of Undersea Feature Names, and GEBCO world map.