GEBCO_2019/2020/2021 Grids

 

  https://www.gebco.net/data_and_products/gridded_bathymetry_data/  
15" https://www.gebco.net/data_and_products/gridded_bathymetry_data/
  • Current release is 2021.  Geotiff is 4 GB, uncompresses to 8 GB.  Will require subset with GDAL before use

  • Format: Geottff (best bet), netCDF, or ESRI ASCII
  • Entire data set is huge, but you can get just the region you want.
  • Try Global Multi-Resolution Topography Data Portal first

GEBCO Compilation Group (2021) GEBCO 2021 Grid (doi:10.5285/c6612cbe-50b3-0cff-e053-6c86abc09f8f)

https://www.bodc.ac.uk/projects/data_management/international/gebco/gebco_digital_atlas/gda_development/documents/manual.pdf


Last revision 2/4/2022