CROSS-SHORE MODEL APPLICATION TO HASAKI BEACH, JAPAN

Abstract

 In this paper, the cross-shore model developed by Larson et al. (2016), which evaluates the cross-shore sediment transport between bars and berms, was employed to simulate decadal profile evolution at Hasaki Beach, Japan. The model parameters were calibrated following an optimization process, and the model showed good agreement with the profile data. A comparison of the model parameters of the Hasaki Beach with those of other foreign beaches suggests that the amount of sediment exchange between the bar and the berm is relatively high at the Hasaki Beach and that the bar grows larger while the response is slower. Sensitivity analysis showed that coefficient C_B, which is related to bar volume, highly affects model performance.