The motions of water in ebb and flood currents, driven by the gravitational attraction of the Sun and moon on the Earth, at times influenced by wind events. Distributions are observations of tidal height, currents, and cycles, at specific locations and times, and they include maps of tidal climatology based on combinations of observations, astronomy, hydrodynamic theory, and numerical models. Assessments evaluate tidal energy potential, technologies, and risks; model the effects of tides on other uses; and evaluate risks associated with extreme tides. Predictions are the results of models or projections of future tidal climatology, tidal energy potential, effects, and risks; these data include predicted changes due to economic, regulatory, technological, and environmental changes.

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Hydrodynamic modeling of the mouth of the Columbia River, Oregon and Washington, 2013

A process-based numerical model of the mouth of the Columbia River (MCR) and estuary, Oregon and Washington, was applied to simulate hydrodynamic conditions for the time period of the Office of Naval Research-funded River and Inlets Dynamics (RIVET II) field experiment conducted between May 9 and June 15, 2013. The model application was constructed using Delft3D, an open-source software package used to solve the unsteady shallow water equations to simulate water motion due to tides, waves, wind, and ...