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Gridded Bathymetry Data

GEBCO global bathymetric grid

GEBCO’s gridded bathymetric data sets are global terrain models for ocean and land. 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.

Image from GEBCO Type Identifier Grid StoryMap

GEBCO Spotlight

Access the TID Grid StoryMap

The TID Grid helps to identify the types of source data used to develop the GEBCO bathymetric grid. Find out more from our StoryMap.

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 18th year

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

Latest News

6th Seabed 2030 Pacific Ocean Mapping Meeting
6th Seabed 2030 Pacific Ocean Mapping Meeting - June 2024

In November 2024 the 6th Seabed 2030 Pacific Ocean Mapping meeting will be held in Figi. Find out more.

Imagery from the GEBCO WMS
The GEBCO WMS URLs are Changing - March 2024

In March 2024 the URLs for the GEBCO Web Map Services will change. Find out more.

GEBCO logo
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).

Some of our People
Mr. Evert Flier, Chair, GEBCO Guiding Committee, Norwegian Mapping Authority,
Evert Flier

Chair, GEBCO Guiding Committee
Norwegian Mapping Authority,

Contact Details
Dr. Marzia Rovere, Vice-Chair, GEBCO Guiding Committee, ISMAR, Italy
Marzia Rovere

GEBCO Guiding Committee
ISMAR, Italy

Contact Details
Mr Shin Tani, Immediate past Chair of GEBCO Guiding Committee, Japan
Shin Tani

Immediate past Chair of GEBCO Guiding Committee

Contact Details
Prof. Hyo Hyun Sung, Chair of SCUFN, Korea Institute of Geoscience and Mineral Resources (KIGAM), Republic of Korea
Hyun-Chul Han

Chair of the Undersea Feature
Names Sub-Committee
Korea Institute of Geoscience
and Mineral Resources,
Republic of Korea

Contact Details
Dr. Rochelle Wigley, Director, Nippon Foundation-GEBCO Training Programme, UNH, USA
Rochelle Wigley

Director, Nippon Foundation-GEBCO Training Programme

Contact Details
Mr. David Millar, Member of the GEBCO Guiding Committee, Fugro, USA
David Millar

Member of the GEBCO Guiding Committee
Fugro, USA

Contact Details