The following sub-sets are available from the Ocean Wave Ensemble Prediction System:
For a description, see Meteorological Bulletin M3.2 User Guide to ECMWF Products.
See practical examples of tariffs here
IV-i: Wave fields
The products consist of control and perturbed forecasts plus the
equivalent deterministic products. Costumers choosing forecast steps from Leg 2
(see below) will receive a high resolution and a low resolution calibration forecast
at no extra cost. The deterministic product is suppressed beyond day 10.
The fields are provided in GRIB code.
1.1 Parameters
- 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)
- Model Bathymetry (WMB)
- 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)
If requested by the user, model bathymetry (WMB) will be provided free of charge once with every forecast dissemination.
1.2 Product resolution
| Leg 1: |
- 0.5° x 0.5° lat/long grid or any multiple thereof (global or sub-area)
|
| Leg 2: |
- 0.5° x 0.5° lat/long grid or any multiple thereof (global or sub-area)
|
1.3 Forecast time-steps
| Leg 1: |
- T+0h to T+144h at 3-hour intervals, T+150h to T+240h at 6-hour intervals
|
| Leg 2: | - T+246h to T+360h at 6-hour intervals
|
1.4 Base times
IV-ii: ProbabilitiesThe products provide the probabilities of the occurrence of instantaneous
and averaged weather events at each grid point. The
products are encoded in GRIB form. 2.1 Parameters
IV-ii-a) Single level parameters (instantaneous weather events)
- Significant wave height of at least 2m (SWHG2)
- Significant wave height of at least 4m (SWHG4)
- Significant wave height of at least 6m (SWHG6)
- Significant wave height of at least 8m (SWHG8)
IV-ii-b) Single level parameters (averaged weather events)
- Significant wave height of at least 2m (SWHG2)
- Significant wave height of at least 4m (SWHG4)
- Significant wave height of at least 6m (SWHG6)
- Significant wave height of at least 8m (SWHG8)
2.2 Product resolution
| Leg 1: |
- 0.5° x 0.5° lat/long grid or any multiple thereof (global or sub-area)
|
| Leg 2: |
- 0.5° x 0.5° lat/long grid or any multiple thereof (global or sub-area)
|
2.3 Forecast time-steps for instantaneous events
| Leg 1: | - T+12h to T+240h at 12-hour intervals
|
| Leg 2: | - T+252h to T+360h at 12-hour intervals
|
2.3 Forecast ranges for averaged events
| Leg 1: | - 2 -day period covering 120h < T ≤ 168h
- 3 -day period covering 168h < T ≤ 240h
- 5 -day period covering 120h < T ≤ 240h
|
| Leg 2: | - 5-day periods: 240h < T ≤ 360h
|
2.4 Base times
|
