Set II: Products from the Deterministic Ocean Wave Model

The following sub-sets are available from the Deterministic Ocean Wave Model:

• II-i: Global ocean wave model
• II-ii: European waters ocean wave model

For a description, see Meteorological Bulletin M3.2 User Guide to ECMWF Products.

See practical examples of tariffs here

II-i: Global ocean wave model

The products are provided in GRIB code or in plotted form. The plots are derived from the GRIB code without further processing.

1.1 Parameters

• Forecast and Analysis fields
  
  • 2D wave spectra (2DFD)
  • Maximum individual wave height (HMAX)
  • Mean direction of total swell (MDTS)
  • Mean direction of wind waves (MDWW)
  • Mean period of total swell (MPTS)
  • Mean period of wind waves (MPWW)
  • Mean wave direction (MWD)
  • Mean wave period (MWP)
  • Mean wave period based on second moment (MP2)
  • Mean wave period based on second moment for swell (P2PS)
  • Mean wave period based on second moment for wind waves (P2WW)
  • Peak period of 1D-spectra (PP1D)
  • Period corresponding to maximum individual wave height (TMAX)
  • Significant height of total swell (SHTS)
  • Significant height of wind waves (SHWW)
  • Significant wave height (SWH)
  • U-Component stokes drift (UST)
  • V-Component stokes drift (VST)
• Analysis fields only
• Model Bathymetry (WMB)

Due to constraints imposed by GRIB the 2D wave spectra (2DFD) is coded in 36 frequencies and 36 directions, resulting in a total of 1296 fields.

If requested by the user, model bathymetry (WMB) will be provided free of charge once with every forecast or analysis dissemination.

1.2 Product resolution

1.3 Forecast

1.3.1 Forecast time-steps

T+0h to T+144h at 3-hour intervals and T+150h to T+240h at 6-hour intervals T+6h to T+240h at 6-hour intervals for 2D wave spectra (2DFD)

1.3.2 Base times

• 00 UTC, 12 UTC

1.4 Analysis

1.4.1 Analysis times

• 00 UTC, 06 UTC, 12 UTC, 18 UTC

II-ii: European waters ocean wave model

The products are provided in GRIB code or in plotted form. The plots are derived from the GRIB code without further processing.

2.1 Parameters

• Forecast and Analysis fields
  
  • 2D wave spectra (2DFD)
  • Maximum individual wave height (HMAX)
  • Mean direction of total swell (MDTS)
  • Mean direction of wind waves (MDWW)
  • Mean period of total swell (MPTS)
  • Mean period of wind waves (MPWW)
  • Mean wave direction (MWD)
  • Mean wave period (MWP)
  • Mean wave period based on second moment (MP2)
  • Mean wave period based on second moment for swell (P2PS)
  • Mean wave period based on second moment for wind waves (P2WW)
  • Peak period of 1D-spectra (PP1D)
  • Period corresponding to maximum individual wave height (TMAX)
  • Significant height of total swell (SHTS)
  • Significant height of wind waves (SHWW)
  • Significant wave height (SWH)
  • U-Component stokes drift (UST)
  • V-Component stokes drift (VST)
• Analysis fields only
  • Model Bathymetry (WMB)

Due to constraints imposed by GRIB the 2D wave spectra (2DFD) is coded in 36 frequencies and 36 directions, resulting in a total of 1296 fields.

If requested by the user, model bathymetry (WMB) will be provided free of charge once with every forecast or analysis dissemination.

2.2 Product resolution

2.3 Forecast

2.3.1 Forecast time-steps

T+0h to T+120h at 3-hour intervals T+6h to T+120h at 6-hour intervals for 2D wave spectra (2DFD)

2.3.2 Base times

• 00 UTC, 12 UTC

2.4 Analysis

2.4.1 Analysis times

• 00 UTC, 06 UTC, 12 UTC, 18 UTC