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NUMERICAL MODEL FOR BAR MIGRATION AT HASAKI, JAPAN

    https://doi.org/10.1142/9789814282475_0052Cited by:4 (Source: Crossref)
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    Abstract:

    A one-dimensional model for beach profile change was developed to predict longshore 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. Beach profiles at the Hasaki coast in Japan during a 2-year period from 1989 to 1990 were predicted with a grid size of 5 m and time interval of 2 hours. The simulated profiles were compared with beach profile data, obtained along the 400-m-long pier of the Hazaki Oceanographical Research Station at 5-m intervals every workday and showing cyclic seaward bar migrations with a period of 1 year. The comparisons of the measured and predicted beach profiles and bar crest positions show that the model reasonably predicted the repeated seaward bar migration for about 2 years.