GEBCO - The General Bathymetric Chart of the Oceans

Gridded Bathymetry Data

GEBCO’s gridded bathymetric data sets are global terrain models for ocean and land, and includes the GEBCO 2014 Grid, a global 30 arc-second interval grid. The grids are available to download or access through Web Map Services.

Data & Products

Part of the GEBCO world map showing bathymetry from the GEBCO grid and names from the GEBCO Gazetteer of Undersea Feature Names

GEBCO produces and makes available a range of bathymetric data sets and products. This includes a global bathymetric grid; gazetteer of undersea feature names, a Web Map Service and printable maps of ocean bathymetry.

Seabed 2030

3D view of the GEBCO grid for the Mariana Trench region in the Northwest Pacific Ocean

Seabed 2030 is a collaborative project between the Nippon Foundation and GEBCO. It aims to bring together all available bathymetric data to produce the definitive map of the world ocean floor by 2030 and make it available to all.

GEBCO Spotlight

GEBCO-Nippon Foundation Alumni Team competing in Shell Ocean Discovery XPRIZE final

The GEBCO-Nippon Foundation Alumni Team has confirmed the successful completion of its first 24-hour sea-trials, in preparation for the final round of the Shell Ocean Discovery XPRIZE.

Latest Stats and information

How deep are the oceans?

The deepest depth measured so far in the oceans is around 10,920m in the Challenger Deep, part of the Mariana Trench, in the Northwest Pacific Ocean. For comparison, Mount Everest is around 8,850m high.
Over 1,300 seafloor 'mountains' named

The GEBCO Gazetteer of Undersea Feature Names includes names for over 1,300 seamounts, (elevations on the seafloor over 1,000m high).
Training program now in 15th year

Since 2004, the Nippon Foundation/GEBCO Training Program has trained 90 students from 39 countries in seafloor mapping through a one-year postgraduate course held at the University of New Hampshire, USA.

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Latest News

3D view of submarine canyons off the coast of Portugal near Lisbon from the EMODnet grid viewer

EMODnet - new high resolution DTM

An upgraded version of the EMODnet Bathymetry Digital Terrain Model (DTM) for the European Seas has just been released.

Imagery from Chapter 16 of the IHO-IOC GEBCO Cook Book

Update to the IHO-IOC GEBCO Cook Book

An updated version of the IHO-IOC GEBCO Cook Book, is now available. It includes a new chapter on Finding Gaps to Map.

General Bathymetric Chart of the Oceans

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

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