Abstract
Due to the sheltering effect of the Wai-San-Ding Sand Barrier, the hydraulic condition of the putia harbor site is quite favorable. Since the relatively well-protected location of the Putai harbor area with regard to both waves and wind, no special navigational problems have to be envisaged. The wave energy of the Putai harbor site is computed from the measured waves by considering the refraction effect down to breaking line. As the lack of wave records, the wind speed is used by applying the regression equations among the wave height, period and wind speeds, and then compute the wave height and period for obtaining the breaking wave energy. Therefore the total breaking wave energy (P# ) of the whole year along the Putai harbor coast is summated. The littoral transport rate { IJ ) is calculated from the mesh method by comparing the echo-sounding maps of two continuous different years. Therefore, the relationship of PJ and 1/ is correlated in the Putai harbor site.
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