Abstract
A one-dimensional numerical model for beach profile change was developed to predict cyclic seaward bar migrations. The cross-shore sediment transport was assumed to be composed of suspended load due to wave breaking and bed load due to velocity skewness, velocity atiltness, and beach slope. The model was calibrated with beach profile data obtained every weekday on the Hasaki coast of Japan during a 1-year period from January to December 1989. The model was able to predict cyclic bar evolutions quantitavely during a 2-year period including the calibration period and the following year of 1990, and at least qualitatively even outside the calibration period, during a 8-year period from 1991 to 1998.
