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本文以风场为驱动运用第三代波浪模型SWAN对江苏海域的波候进行了模拟研究。在模拟过程中采用了嵌套结构,并考虑了潮位对波浪的影响,提高了近岸波浪模拟的精度。同时,对江苏海域波浪分布特征进行了研究。研究结果表明:江苏海域深水区域年平均有效波高分布趋势由南往北逐渐递减,而近岸10m水深处波高从大丰港开始由南往北呈先增加后减小的趋势。江苏海域年平均有效波高最大值为1.5m,最大年平均周期为4.6s,常浪向为NE或SE方向,四季中冬季浪最大,强浪向为NE—NNE方向。
In this paper, the third generation wave model SWAN is driven by the wind field to simulate the climate in Jiangsu sea area. In the process of simulation, the nested structure is adopted, and the influence of tide level on the wave is considered, which improves the accuracy of the wave simulation in the near-shore. At the same time, the wave distribution characteristics in Jiangsu sea area are studied. The results show that the annual average effective wave height distribution in the deepwater area of Jiangsu Province decreases gradually from south to north, and the wave height at the depth of 10m near the coast increases first and then decreases from south to north from the beginning of Dafeng Port. The maximum annual average effective wave height of Jiangsu sea area is 1.5m, the maximum annual average period is 4.6s, and the regular wave direction is NE or SE direction. The winter wave in the four seasons is the largest and the strong waves are in the direction of NE-NNE.