Models
The system implementation assumes three levels related with the resolution in the geographical space of the wave model simulations. These are: level III – regional and sub-regional, level II – high resolution and level I – local.
Numerical wave models, phase averaging, already implemented:
• WAM is a third generation wave model, which computes spectra of random short-crested wind-generated waves, being one of the most popular and well tested wave models. It is the first model that solves the complete action density equation, including non-linear wave - wave interactions.
• WW3 is a third generation spectral wave model for large scale simulations implemented and tested in the North Atlantic basin as an alternative to WAM.
• SWAN is considered the state of the art phase averaging shallow water wave model. SWAN model is a third-generation stand-alone (phase-averaged) wave model for the simulation of waves in waters of deep, intermediate and finite depth.
• STWAVE is an easy-to-apply, flexible, robust, half-plane model for nearshore wind-wave growth and propagation. STWAVE simulates depth-induced wave refraction and shoaling, current-induced refraction and shoaling, depth- and steepness-induced wave breaking, diffraction, parametric wave growth because of wind input, and wave-wave interaction and white capping that redistribute and dissipate energy in a growing wave field.
High resolution phase-resolving models that are being implemented:
• REFDIF is certainly the most popular phase resolving model based on the mild slope equation.
• FUNWAVE is a phase computing model, based on the Boussinesq equations.
These were tested and compared at the level I, corresponding to simulations with a few meters propagation step.
|