A Numerical Model Simulation of Tidal Currents in Long Island and Block Island Sounds

by L. Charles Sun, Natl Ocean Service, Rockville, United States,

Document Type: Proceeding Paper

Part of: Estuarine and Coastal Modeling


A case study evaluating the predictive capability of a hydrodynamic model of Long Island Sound is presented. The model is a time dependent, three-dimensional, primitive equation, estuarine and coastal ocean circulation model incorporating realistic bottom boundary geometry and is driven by the astronomical tides. An assessment is made of the model's ability to simulate correctly the tidal circulation pattern in the Sound. The model reproduces the tidal co-oscillation phenomenon observed at the eastern basin of Long Island Sound (assuming a node at The Race). Model predicted time series data of tidal elevations and currents agree remarkably well with the observational data.

Subject Headings: Numerical models | Tides | Islands | Three-dimensional models | Simulation models | Hydrologic models | Case studies | Terrain models

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