GEBCO is continually working to improve its data sets with the aim of providing the most authoritative publicly-available global bathymetric grids of the world's oceans and helping us achieve the goal of the Seabed 2030 Project – 100% of the ocean floor mapped by 2030.
We are grateful for contributions of single-beam and/or multibeam survey data, individual soundings or existing grids to help update our gridded data sets and products.
GEBCO encourages the sharing of source bathymetric data within the international community for the benefit of all.
If you would like to make your data publicly available, contact the International Hydrographic Organization Data Center for Digital Bathymetry (IHO DCDB), hosted at the US NOAA National Centers For Environmental Information (NCEI) to find out how to submit data.
The IHO DCDB manages a worldwide publicly-accessible digital data bank of oceanic soundings on behalf of the Member Countries of the IHO.
If you are unable to make your source data publicly available, you can contribute the data directly to GEBCO through the Seabed 2030 Project. Contact:
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.
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.