Formats help text

GRID HELP TEXT

GEBCO’s global gridded bathymetric data sets are terrain models for ocean and land at 15 arc-second intervals. You can use this tool to download subsets from thee grids and their associated Type Identifier (TID) grid in a selection of widely supported formats.

Selecting a grid version

You can select which version of the grid that you want to download data for from the 'Select Grid Version' list. The '?'' button provides information about the selected grid version.

Selecting a region

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.

Download formats

You can download your data in netCDF, geoTIFF and Esri ASCII formats. Select the ones you want by checking the relevant boxes.

Download imagery based on the bathymetric grids

You can download imagery based on GEBCO’s grids in the form of shaded relief image or colour-coded for elevation image in either JPEG or PNG format. Select the ones you want by checking the relevant boxes.

Managing your basket

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.

Downloading your data

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.

Seabed 2030

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's data sets and products

GEBCO makes available a range of bathymetric data sets and products.

• Download the global GEBCO grid in netCDF format
• Access GEBCO’s Web Map Services
• Access the GEBCO Gazetteer of Undersea Feature Names

GEBCO operates under the joint auspices of the International Hydrographic Organization(IHO) and the Intergovernmental Oceanographic Commission (IOC) (of UNESCO)

GEBCO 2023

Further details about the data set and its terms of use, disclaimer and errata information are available from GEBCO’s web site.

International Bathymetric Chart of the Arctic Ocean (IBCAO) V4.1

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.

Without elevation data for the Greenland Ice Sheet

With elevation data for the Greenland Ice Sheet

Downloading data indicates that the user accepts the disclaimer information.