GEBCO makes available global bathymetric grids for the world's oceans. The GEBCO_2014 Grid, was released in December 2014 and is a global terrain model at 30 arc-second intervals.
GEBCO 2014 Grid
GEBCO is pleased to announce the release of its latest global terrain model at 30 arc-second intervals - the GEBCO_2014 Grid.
Find out how to download the grid.
The grid marks a significant update to the previous release, the GEBCO_08 Grid. Find out more from the PDF documentation that accompanies the grid. (930 KB)
GEBCO_2014 benefits from contributions from numerous data providers and regional mapping programmes, including:
- International Bathymetric Chart of the Southern Ocean (IBCSO) v1
- International Bathymetric Chart of the Arctic Ocean (IBCAO) v3
- European Marine Observation and Data Network (EMODnet) Bathymetry 2013 data set
- Baltic Sea Bathymetry Database
- Australian Bathymetry and Topography Grid, June 2009
- Global Multi-Resolution Topography (GMRT) Synthesis from the Lamont-Doherty Earth Observatory of Columbia University
- Japan Coast Guard Grid for the North Western Pacific Ocean region
- Updates of the South China Sea Region and waters off Chile using data supplied from Electronic Navigation Charts (ENCs)
- Bathymetry of the North American Great Lakes
- North Atlantic Ocean, Gulf of Cadiz region
- South Pacific Ocean, Coral Sea region
As with the previous release, the GEBCO_2014 grid is accompanied by a Source Identifier (SID) Grid. This indicates which of the corresponding cells in the GEBCO_2014 Grid are based on soundings or existing grids or are based on interpolation.
The grid is made available in netCDF form; it is planned to make the data available in Esri ASCII raster and data Geotiff in the near future. The grid is also available in the form of a shaded relief image as a web map service.