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WORLD OCEAN ATLAS 2018 (WOA18) - prerelease

The WOA18 prerelease - September 30, 2018 updates previous versions of the World Ocean Atlas to include approximately 3 million new oceanographic casts added to the World Ocean Database and renewed quality control. The WOA18 temperature and salinity fields are being prereleased.

For any questions about this product, please e-mail OCLhelp desk.


  • WOA18 data - access to statistical and objectively analyzed fields
  • WOAselect - user specified query accessing (ArcGIS, ASCII formats)