https://www.gebco.net/
GEBCO | General Bathymetric Chart of the Oceans
The General Bathymetric Chart of the Oceans (GEBCO) aims to provide the most authoritative, publicly available bathymetry data sets for the world's oceans.
bathymetric chartof thegebcogeneraloceans
https://www.bas.ac.uk/data/our-data/publication/the-international-bathymetric-chart-of-the-southern-ocean-version-2/
The International Bathymetric Chart of the Southern Ocean Version 2 - British Antarctic Survey
The Southern Ocean surrounding Antarctica is a region that is key to a range of climatic and oceanographic processes with worldwide effects, and is...
the internationalbathymetric chartsouthern ocean
https://www.bas.ac.uk/data/our-data/publication/the-international-bathymetric-chart-of-the-arctic-ocean-version-4-0/
The International Bathymetric Chart of the Arctic Ocean Version 4.0 - British Antarctic Survey
Bathymetry (seafloor depth), is a critical parameter providing the geospatial context for a multitude of marine scientific studies. Since 1997, the...