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Contributing Data

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How to contribute data

Please use the form below to make contributions of multibeam and/ or single-beam survey data, individual soundings or existing grids to help update our gridded data sets and products. If you have any problems in completing the form, then please email this information to the Global Center ().

Contributing data for public access

GEBCO encourages the sharing of source bathymetric data within the international community for the benefit of all.

The International Hydrographic Organization Data Center for Digital Bathymetry (IHO DCDB), manages a worldwide publicly-accessible digital data bank of oceanic soundings on behalf of the Member Countries of the IHO. Archiving data with the IHO DCDB ensures their long term preservation and public availability.

Contributing data for updating the GEBCO grid only

If source data cannot be made publicly available, data can still be contributed directly to GEBCO through the Seabed 2030 Project (as described in the form above).

The project prefers processed data in the form of multibeam grids, single beam tracks or pre-generated grids  (i.e. a data set in gridded form based on a number of source data sets).

If submitting a pre-generated grid, please provide accompanying information describing source data types included in the grid and if areas are based on interpolation (e.g. as a Type Identifier Grid).

This information will better help us to 'map the gaps'.

Useful contacts

Join the Crowdsourced Bathymetry (CSB) data initiative

In order to map the whole of the global seafloor, we cannot rely on traditional survey vessels alone. An initiative has been setup to support and enable mariners and professionally manned vessels to collect CSB. This approach leverages underway x, y, z, t data already being collected on vessels with common commercial echo sounders and Global Navigation Satellite System receivers.

Find out how to get involved.

Our data contributors

GEBCO thanks all the data collectors and regional grid developers who make their data sets available. Find out about the data sets included in the GEBCO global grid.