![]() The Salish Sea consisting of Puget Sound and Georgia Basin in U.S and Canadian waters has been the subject of several independent data collection and modeling studies. Error statistics showed an overall good agreement between simulated and observed tidal elevations and currents, which demonstrated that the Puget Sound tidal model can be used to accurately characterize the tidal stream energy resource in Puget Sound. A set of model performance metrics, including root mean square error, scatter index, bias, and linear correlation coefficient, were used to quantify the model skills in simulating the tidal hydrodynamics in Puget Sound. Model validation was carried out by comparing simulated and observed water levels at 12 tidal stations and currents at 135 Acoustic Doppler Current Profiler stations in the model domain. The spatial resolution more » of the model grid varies from ~10 m near river boundaries and ~30 m in small tidal channels and estuaries to near 1000 m inside Georgia Strait and at the open boundaries. To simulate the tidal current in Puget Sound, a high-resolution model grid is required to accurately represent the complex coastlines and bathymetry. The Salish Sea tidal hydrodynamic model was driven by tides along two open boundaries at the entrance of the Strait of Juan de Fuca and north end of Georgia Strait, and river flows from 19 major rivers in the Salish Sea. In this study, a tidal hydrodynamic model was developed and validated to simulate tidal currents in Puget Sound, Washington, to support tidal energy resource characterization using the unstructured-grid, Finite Volume Community Ocean Model (FVCOM). Therefore, future study is necessary to further quantify the storm surge level in these high-risk areas through field measurements and refined model simulations. The maximum NTR distribution inside Puget Sound suggests that storm surge tends to be amplified in several sub-basins and inlets of the Puget Sound, such as Bellingham Bay, Hood Canal, south Puget Sound, and the multi-inlet basin behind Agate and Rich Passages. Storm surge propagation into Puget Sound is a nonlinear process that cannot be simply determined more » by a static approach for the entire domain. Error statistics of model performance metrics demonstrated that the Salish Sea storm surge model was able to simulate storm surge inside Puget Sound with high accuracy. A series of error statistics parameters were also calculated to quantify the model’s skills in simulating storm surge in the Salish Sea. Model results for total water level, storm surge, and currents were compared with field measurements. To accurately simulate storm surge inside Puget Sound, the model was driven by reanalyzed Climate Forecast System Reanalysis meteorological forcing and observed water levels at the entrance of Strait of Juan de Fuca and southern entrance of Johnstone Strait. A total of 34 storm surge events between 19 were identified and simulated. ![]() To identify representative historical storm events, a systematic approach was developed based on the non-tidal residual (NTR) method. The model was based on Pacific Northwest National Laboratory’s existing Puget Sound hydrodynamic model that has been validated extensively in previous studies. More info: Seattle Aquarium Beach Naturalists 2022.pdf and Puget Sound Beach Field Guide.In this study, a storm surge model of the Salish Sea was developed to simulate storm surge in Puget Sound using the unstructured-grid, finite-volume community ocean model (FVCOM). 2022 Puget Sound beach walksīeach naturalists will be on the beach during select low tides (see locations and dates below), as conditions allow. If you want to become volunteer, find out more about Seattle Aquarium Beach Naturalists and Harbor WildWatch volunteers. They can tell you what sea stars eat, why barnacles stand on their heads, and how moon snails lay their eggs. They can help you enjoy the beach without harming it. Just check the lists below and show up during low tide.Įach year, dozens of volunteers are trained to help others learn about and enjoy area beaches. Biologists and volunteer guides will be on hand from the Seattle Aquarium and Harbor Wild Watch. During summer, you can visit Puget Sound beaches during low tide and learn about the marine plants and animals.
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