Subset of Data from the Regional Deterministic Wave Prediction System

Extract of the Meteorological Service of Canada Datamart: The Regional Deterministic Wave Prediction System (RDWPS) produces wave forecasts out to 48 hours in the future using the third generation spectral wave forecast model WaveWatch III® (WW3). The model is forced by the 10 meters winds from the High Resolution Deterministic Prediction System (HRDPS). Over the Great Lakes, an ice forecast from the Water Cycle Prediction System of the Great Lakes (WCPS) ) is used by the model to attenuate or suppress wave growth in areas covered by 25% to 75% and more than 75% ice, respectively. Over the ocean, an ice forecast from the Regional Ice Ocean Prediction System (RIOPS) is used: [...] ; in the Northwest Atlantic the same logic is used as in the Great Lakes. Forecast elements include significant wave height, peak period, partitioned parameters and others. This system includes several domains: Lake Superior, Lake Huron-Michigan, Lake Erie, Lake Ontario, Atlantic North-West and Pacific North-East.

The data availables on the SLGO catalogue provides the direction and periode of peak waves, as well as the significant height of combined wind waves and swell. Peak waves refer to the most energetic waves (among wind waves and swell) at a specific point. The dataset provide hourly data for the last three days and include 48-hours forecasts derived from the latest model run. Spatially, the dataset covers the St. Lawrence Estuary (downstream of Île d'Orléans, Qc, Canada) and the Gulf, as well as a localized portion of the Northwest Atlantic.

An interactive visualization of this dataset is available via the SLGO's Nautilo app