General Bathymetric Chart of the Oceans (GEBCO)
GEBCO world map
The GEBCO world map shows the bathymetry of the world's ocean floor in the form of a 1.3 m by 1.0 m shaded relief colour map.
Access the GEBCO world map
- Full resolution (32 MB)
- Reduced resolution (3.5 MB)
Creation of the map
Work on the creation of the GEBCO world map began as a laboratory workshop project of the Nippon Foundation/GEBCO Training Project at the Center for Coastal and Ocean Mapping of the University of New Hampshire, USA.
The bathymetry data shown on the map is based upon the GEBCO One Minute Grid, a global bathymetric grid with one arc-minute spacing, as contained within the Centenary Edition of the GEBCO Digital Atlas (published in 2003). The land imagery is taken from the US National Aeronautics and Space Administration's (NASA) Blue Marble data set. The coastline is taken from the World Vector Shoreline.
The map is on a Mercator projection at a scale of 1:35,000,000 at the Equator.
Use of the GEBCO world map
The image files have been made available for you to download and either print or use in digital form.
The map is supplied under the following terms and conditions
- Use of the printed map and/or digital imagery for scientific research, environmental conservation, education or other non commercial purposes is authorised without the prior permission of the data set originators, providing the source material is properly credited.
- Use of the printed map and/or digital imagery for sale or for use in a commercial product or for any other commercial purpose is prohibited without the prior permission of the data set originators. In the first instance, any request for such permission should be addressed to the British Oceanographic Data Centre (email BODC Enquiries).
- The printed map/digital imagery should not be used for navigation for any purpose relating to safety at sea.
Data set acknowledgement
If imagery is reproduced from the GEBCO world map then we suggest the following form of acknowledgement
"Image reproduced from the GEBCO world map, http://www.gebco.net"
Related GEBCO pages at BODC
| GEBCO at BODC | GEBCO Grid display software | |
| GEBCO Digital Atlas | Software Interface updates | |
| Order the GEBCO Digital Atlas | Data set errata | |
| Download data — GEBCO One Minute Grid |
Related external links
| Official GEBCO web site | Nippon Foundation/GEBCO Training Project | |
| Intergovernmental Oceanographic Commission (IOC) | The Blue Marble — land imagery | |
| International Hydrographic Organization (IHO) | World Vector Shoreline (WVS) | |
| GEBCO at the National Oceanography Centre, Southampton (NOCS) |
