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⚠️ From Version 3.3 Non-ASCII fonts added (These fonts are not compatible with some environments) ⚠️ Some fonts don't support all characters

We are working to understand how best to fully assimilate these data. However, in some shallow water areas, the grids include data from sources having a vertical datum other than mean sea level. GEBCO's global elevation models are generated by the assimilation of heterogeneous data types assuming all of them to be referred to mean sea level. Further information about the TID codes can be found in the accompanying documentation. The TID grid identifies the type of source data that the corresponding grid cells in the GEBCO Grid are based on. Known issues can be viewed on our errata pages. Data set errata and known issuesĪlthough every care is taken during the development of the GEBCO bathymetric grids, errors can occasionally occur, and can be reported to the Seabed 2030 Global Centre ( ). Use of the GEBCO Grid indicates that the user accepts the conditions of use and disclaimer information.
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The GEBCO Grid is placed in the public domain and may be used free of charge. If the data sets are used in a presentation or publication then we ask that you acknowledge the source.This should be of the form: GEBCO Compilation Group (2021) GEBCO 2021 Grid (doi:10.5285/c6612cbe-50b3-0cff-e053-6c86abc09f8f) Terms of use

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Use our application to select and download data in netCDF, Esri ASCII raster and data GeoTiff formats. Please note that the size of the uncompressed files. GEBCO_2021 Gridĭata GeoTiff (96 Mbytes, 7 Gbytes uncompressed)Įsri ASCII raster (108 Mbytes, 9.5 Gbytes uncompressed)
#Ascii file generator download zip file
The data filea are included in a zip file along with the data set documentation. The GEBCO_2021 Grid and TID Grid can be download as global files in netCDF format or a set of 8 tiles (each with an area of 90° x 90°), giving global coverage, in Esri ASCII raster and data GeoTiff formats. Provide feedback, tell us how you are using the grid. More information about the grid, its terms of use and attribution. It is accompanied by a Type Identifier (TID) Grid that gives information on the types of source data that the GEBCO_2021 Grid is based.įor this release, we are making available a version of the grid with under-ice topography/bathymetry information for Greenland and Antarctica. GEBCO’s current gridded bathymetric data set, the GEBCO_2021 Grid, is a global terrain model for ocean and land, providing elevation data, in meters, on a 15 arc-second interval grid.
