Global Ensemble Wave Prediction System

Global Ensemble Wave Prediction System The Global Ensemble Wave Prediction System (GEWPS) uses the third generation spectral wave model WaveWatch III® (WW3) to arrive at probabilistic predictions of wave elements from the current day out to 16 days into the future. The probabilistic predictions are based on 20 ensemble members and a control member that are forced by the 10 meters winds from the Global Ensemble Prediction System (GEPS). The GEPS forecast is a coupled atmosphere-ice-ocean model, its sea ice forecast is used by the GEWPS to dampen or suppress wave growth in areas covered respectively with 25% to 75% and more than 75% ice. WW3 (WAVEWATCH III® Development Group, WW3DG 2019) is a third generation spectral wave prediction model that solves the evolution of the energy balance equation for the 2-D wave energy spectrum without any prior assumptions on the shape of the spectrum. The WW3 model has been implemented by a growing number of national operational forecasting centres over the last several years. 2024-04-10 Environment and Climate Change Canada ECWeather-Meteo@ec.gc.ca Nature and EnvironmentScience and TechnologyWavesSwellPredictionGlobalEnsembleForecastingWaterOceansOcean energySeasProvide Weather Information Products and ServicesDeliver Weather Products and Services to ClientsMeteorological Service of CanadaWeather and Environmental OperationsUnclassifiedInternational MSC DatamartGRIB2 https://dd.weather.gc.ca/model_gewps/ MSC DatamartGRIB2 https://dd.meteo.gc.ca/model_gewps/ MSC Datamart AMQPGRIB2 amqps://dd.weather.gc.ca/model_gewps.# MSC Datamart AMQPGRIB2 amqps://dd.meteo.gc.ca/model_gewps.# MSC Open Data documentationHTML https://eccc-msc.github.io/open-data/msc-data/nwp_gewps/readme_gewps_en/ MSC Open Data documentationHTML https://eccc-msc.github.io/open-data/msc-data/nwp_gewps/readme_gewps_fr/

The Global Ensemble Wave Prediction System (GEWPS) uses the third generation spectral wave model WaveWatch III® (WW3) to arrive at probabilistic predictions of wave elements from the current day out to 16 days into the future. The probabilistic predictions are based on 20 ensemble members and a control member that are forced by the 10 meters winds from the Global Ensemble Prediction System (GEPS). The GEPS forecast is a coupled atmosphere-ice-ocean model, its sea ice forecast is used by the GEWPS to dampen or suppress wave growth in areas covered respectively with 25% to 75% and more than 75% ice. WW3 (WAVEWATCH III® Development Group, WW3DG 2019) is a third generation spectral wave prediction model that solves the evolution of the energy balance equation for the 2-D wave energy spectrum without any prior assumptions on the shape of the spectrum. The WW3 model has been implemented by a growing number of national operational forecasting centres over the last several years.

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Contact Information

Delivery Point: 77 Westmorland Street, suite 260

City: Fredericton

Administrative Area: New Brunswick

Postal Code: E3B 6Z4

Country: Canada

Electronic Mail Address: ECWeather-Meteo@ec.gc.ca

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