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World Ocean Atlas 2013 Masks


Additional information also available from WOA13 documentation (0.1 MB).
For any questions about WOA13 product, please e-mail OCLhelp desk.


  • basinmask_01.msk - basin mask used for WOA climatology objective analysis for 1° grid
  • basinmask_04.msk - basin mask used for WOA climatology objective analysis for 0.25° grid
  • mixnumber_01.msk - mixing number (values -2 through 2) for 1° grid. If basins are not the same, the sum of the mixing numbers must be > 0
  • mixnumber_04.msk - mixing number (values -2 through 2) for 0.25° grid. If basins are not the same, the sum of the mixing numbers must be > 0