Table 1 Calibrated free parameters Embedded Image in the wave dissipation model for each reef type (low to high energy).

The mean wave friction factor (Embedded Image) and breaker criterion inputs for XBeach are shown. The root mean square error (RMSE) and the R2 correlation derived from linear regression between the modeled and measured reef flat and back-reef wave heights are also shown.

Coral reef (energy)Embedded ImageγbR2RMSE
Tiahura (low)0.30.90.980.006
Temae (intermediate)0.2410.880.02
Ha’apiti (high)0.110.90.940.02
Teahupo’o (high)0.0310.920.028