General Bathymetric Chart of the Oceans (GEBCO)

Gridded bathymetric data sets

Bathymetry data from the GEBCO_08 Grid
Bathymetry data from the GEBCO_08 Grid ©

GEBCO's aim is to provide the most authoritative, publicly-available bathymetry for the world's oceans. It operates under the joint auspices of the Intergovernmental Oceanographic Commission (IOC) and the International Hydrographic Organization (IHO).

Two GEBCO gridded bathymetric data sets, maintained and distributed by BODC, are available to download as netCDF files. You may opt to download data for a user-defined area or the complete global file(s).

To download the data you are required to be a registered BODC web user. If you have already registered, please log in, alternatively please register to become a new user.

Additional information

Data set documentation along with information on export formats, grid version numbering and bug alerts for each of GEBCO's gridded data sets is also available

Free software is available for viewing and accessing data from the grids in ASCII as well as netCDF. Find out more about the GEBCO Grid display software

Related GEBCO pages at BODC

GEBCO at BODC Data set errata

Related external links

Official GEBCO web site network Common Data Form (netCDF)
Generic Mapping Tools (GMT) Intergovernmental Oceanographic Commission (IOC)
International Hydrographic Organization (IHO)