Modeling tides and storm surges
(1) What are tides and storm surge?
- Driving forces: tides, wind
- Modifying processes: friction, mixing
- Governing equations.
(2) Atmospheric model formulations
- Numerical methods
- Physical parameterizations
(3) Winds that drive surges
- Extratropical cyclones, mesoscale jets, tropical cyclones
(4) Numerical representation of tides and storm surge
- ADCIRC model
- GWCE equations (what and why)
- Projections for spherical coordinates
- Numerical discretization (time and space)
- Solution strategies (implications for parallelization)
(5) Finite element mesh generation
- Approaches and strategies (resolution, minimization of error; Tools (MeshGUI, SMS, TriGrid)
- Hands-on activity: mesh generation with MeshGUI.
(6) Model configuration
- Land cover/use; tides (nodal factors, boundary conditions, global databases)
- Wind models (symmetric vortex, asymmetric vortex, met. models)
- River treatment
- Other parameters (time step, friction, tauo, wetting/drying, etc.)
- Computational considerations (resolution, processors, time to solution)
(5) Case studies
- Hurricane Katrina
- Hurricane Irene
- Bay St. Louis: wave-current interaction?
- Hands-on activity: to configure a simple tide-surge application using ADCIRC