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Global Ensemble Ocean Wave Forecast System

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The Global Ensemble Ocean Wave Forecast System (GEOWaFS) provides wave forecasts from 21 wave models run simultaneously using winds from NCEP's Global Forecast Sytem GFS (control member) and from the Global Ensemble Forecast System GEFS (20 perturbed members).

Forecasts extend from 0h to 240h, and are provided for a global domains in a spherical grid with 0.1 x 0.1 degree resolution. Forecasts are run 4x daily at the 00, 06, 12 and 18Z run cycles.

The US National Weather Service also generates operationally a combined wave-height ensemble product in partnership with the Fleet Numerical Meteorology and Oceanography Center (FNMOC) of the US Navy. The combined wave ensemble data are at the NFCENS page.

Forecast products provided below from the NCEP wave ensemble system consist of global maps of statistical parameters derived from the 21 wave ensemble members, as follows:

Product Description
Mean & Spread Means and Spreads in the ensemble
Spaghetti Contour maps where parameters exceed 7 threshold values
Probability Probability maps where parameters exceed 7 threshold levels

The viewer controls allow you to select from the last 5 days at the run times of 00Z, 06Z, 12Z, and 18Z. Spaghetti and Probability maps include a control to select a threshold value for the selected parameter.


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Page last modified: Saturday, 27-Jul-2013 21:48:13 UTC