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Gridded Bathymetry Data

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Global ocean & land terrain models

GEBCO’s gridded bathymetric data set, the GEBCO_2019 grid, is a global terrain model for ocean and land at 15 arc-second intervals. More information about the grid, its terms of use and attribution.

Please note that we have replaced the Source Identifier (SID) Grid with a Data Type Identifier (TID) Grid. See the accompanying documentation for more information.

Download the global grid files

Select data for a user-defined area

Use our application to select and download data in netCDF, Esri ASCII raster and data GeoTiff formats.

Access the GEBCO grid download application

Data set attribution

If the data sets are used in a presentation or publication then we ask that you acknowledge the source.This should be of the form:

GEBCO Compilation Group (2019) GEBCO 2019 Grid (doi:10.5285/836f016a-33be-6ddc-e053-6c86abc0788e)

Terms of use

The GEBCO Grid is placed in the public domain and may be used free of charge. Use of the GEBCO Grid indicates that the user accepts the conditions of use and disclaimer information.

Data set errata

Although every care is taken during the development of the GEBCO bathymetric grids, errors can occasionally occur, and can be reported to the Seabed 2030 Global Centre (). Known issues can be viewed on our errata pages.

Note on vertical datum and GEBCO's grids

GEBCO's global elevation models are generated by the assimilation of heterogeneous data types assuming all of them to be referred to mean sea level. However, in some shallow water areas, the grids include data from sources having a vertical datum other than mean sea level. We are working to understand how best to fully assimilate these data.

Find out more