A basin- to channel-scale unstructured grid hurricane storm surge model applied to southern Louisiana ...

• Main Authors: Powell, M.D., Pourtaheri, H., Luettich, R.A., Feyen, J.C., Kubatko, E.J., Westerink, J.J., Dawson, C., Atkinson, J.H., Dunion, J.P., Roberts, H.J.
• Format: Text
• Language: English
• Published: The University of North Carolina at Chapel Hill University Libraries 2008
• Subjects: North Atlantic
• Online Access: https://dx.doi.org/10.17615/dq0t-xa11; https://cdr.lib.unc.edu/concern/articles/9880w1745

Southern Louisiana is characterized by low-lying topography and an extensive network of sounds, bays, marshes, lakes, rivers, and inlets that permit widespread inundation during hurricanes. A basin- to channel-scale implementation of the Advanced Circulation (ADCIRC) unstructured grid hydrodynamic model has been developed that accurately simulates hurricane storm surge, tides, and river flow in this complex region. This is accomplished by defining a domain and computational resolution appropriate for the relevant processes, specifying realistic boundary conditions, and implementing accurate, robust, and highly parallel unstructured grid numerical algorithms. The model domain incorporates the western North Atlantic, the Gulf of Mexico, and the Caribbean Sea so that interactions between basins and the shelf are explicitly modeled and the boundary condition specification of tidal and hurricane processes can be readily defined at the deep water open boundary. The unstructured grid enables highly refined ...