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GEBCO’s gridded bathymetric data set, the GEBCO_2020 grid, is a global terrain model for ocean and land at 15 arc-second intervals. You can use this tool to download subsets from this grid and its associated Type Identifier (TID) grid in a selection of widely supported formats.
A region is defined between two latitudes and two longitudes. Enter these manually in the input boxes provided, or select the region using the mouse. To use the mouse, hold down the CTRL key (Windows) or Command key (Mac). Then select the region by holding down the mouse button and dragging.
You can download your data in netCDF, geoTIFF and Esri ASCII formats. Select the ones you want by checking the relevant boxes.
Once you have selected your region and formats, click the 'Add to basket' button. You can add more than one region to download at a time so if required select more regions and add them in the same way.
Click 'View basket' when you are ready to download your data, or to manage the items you have added so far.
When you click 'Download your data', if the data can be delivered quickly it will be downloaded directly through your browser after a few seconds. If it will take longer to prepare you will be asked to provide your email address and we will email you a download link as soon as it is available.
You will get your data as a single ZIP file containing all of the regions you have requested.
The General bathymetric Chart of the Oceans (GEBCO) consists of an international group of experts in ocean mapping. Our aim is to provide the most authoritative publicly-available bathymetry of the world's oceans.
The Nippon Foundation-GEBCO Seabed 2030 Project is a collaborative project between the Nippon Foundation of Japan 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.
Seabed 2030 was launched at the United Nations (UN) Ocean Conference in June 2017 and is aligned with the UN's Sustainable Development Goal #14 to conserve and sustainably use the oceans, seas and marine resources.
GEBCO makes available a range of bathymetric data sets and products.
If you need the full global GEBCO 2021 grid you can get it here.
You can download it as a single netCDF file, or a single download containing a set of eight 90 x 90 degree tiles, in either GeoTIFF or Esri ASCII format.
You can also download the accompanying Type Indentifier (TID) grid with the same options.
With ice surface elevation
With sub-ice topography/
Access version 4.1 of the IBCAO data set. The data are made available in Polar Stereographic projection co-ordinates (meters), true scale set at 75°N. The horizontal datum is WGS 84 and vertical datum can assumed to be Mean Sea Level (however, note there may be datum issues for older data, which can be to chart datum). Further details are available on the IBCAO page on GEBCO’s web site.
Download data as 200m x 200m or 400m x 400m interval grid files with an accompanying data source Type Identifier (TID) Grid for the 200m x 200m interval grid.
Downloading data indicates that the user accepts the disclaimer information.