An empirical formula for maximum wave setup based on a coupled wave-current model

The present paper proposes an empirical formula for maximum wave setup based on a coupled wave-current model. The wave model is the Simulating Waves Nearshore (SWAN) model; the current model is the Finite Volume Community Ocean Model (FVCOM). This study first evaluates the coupled model system against mean water level data collected from a series of laboratory and field experiments. The model calculation agrees with the measurements. Then, the study uses the model results from simulations with a range of wave conditions to develop an empirical formula for the maximum wave setup as a function of wave height, wavelength in deep water, and beach slope. The formula agrees with experimental and in situ measurements and shows better performance than previous formulas.