The 2025 GEBCO bathymetric grid is now available to download.

On World Hydrography Day, The Nippon Foundation-GEBCO Seabed 2030 Project announced that 27.3% of the world’s ocean floor has now been mapped to modern standards. The increase in data represents more than four million square kilometres of newly mapped seafloor.

GEBCO’s grids can be downloaded:

  • as a global file in netCDF format.
  • for user-defined areas, through our download app, in netCDF, data GeoTiff and ESRI ASCII raster formats.

For this release of the GEBCO grid, the data are also available via OPeNDAP – allowing direct access to the data sets through a number of applications.

Find out how to contribute bathymetric data sets to help update the global GEBCO grid.

GEBCO operates under the joint auspices of the International Hydrographic Organization (IHO) and the Intergovernmental Oceanographic Commission (IOC) (of UNESCO). Its mission is to produce free, open and complete seabed data and information for the world’s oceans. This is achieved by enabling and inspiring seabed mapping efforts through international collaboration, technological innovation, and more.

Find out more about GEBCO’s work and data sets.

Mapped seafloor is shown in blue, with red indicating new bathymetric data added in the last year. Credit: Seabed 2030

Apply to become
a Seabed 2030 Ambassador

Reach out and one of our team
will be in touch.

Contact

"*" indicates required fields

*Mandatory fields

This field is for validation purposes and should be left unchanged.

Contribute data

Morbi aliquet felis sed urna tincidunt

Pellentesque ligula velit, vulputate eget ligula ac, aliquet lobortis tortor. Donec posuere sem sit amet mi dapibus accumsan. Proin et lacus est. Morbi aliquet felis sed urna tincidunt, in tincidunt enim consectetur. Ut et dolor id dolor vehicula euismod. Nam bibendum quis odio eget tincidunt. In pellentesque molestie augue, sit amet molestie eros. Donec consectetur rhoncus lacus id convallis.

Morbi tempor semper ipsum luctus porta. Quisque euismod, leo nec scelerisque hendrerit, purus purus interdum ex, ac ultrices sapien massa sit amet purus. Vivamus sit amet condimentum ante. Phasellus eu nisi cursus, blandit turpis sit amet, viverra elit. Quisque et tortor augue. Phasellus leo erat, consequat quis ipsum a, sagittis feugiat purus. In faucibus bibendum nisl non placerat. Nam porttitor cursus sem, quis fermentum mi condimentum vitae.

The Nippon Foundation-GEBCO
Seabed 2030 Project.