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Table of Contents


  • Output type:  forecast

    • only one forecast product per centre is expected for verification - the best available one for the common inter-comparison

  • Output time: 00, 6, 12, 18 UTC (depending on availability)
  • Output frequency: between 1 and 6 hours (including step 0 encoded as forecast type as well)

    • the model output steps should be the shortest available
  • Wave parameters should be obtained from the full 2-D spectrum (we stress this fact as there seems to be some confusion about wave parameters' names and definitions even in the latest WMO GRIB2 code tables)