The wave characteristics in the nearshore waters of Sanmen Bay are presented based on the AWAC-measured data from October 2016 to September 2017 at the wave observation station with 7.5m water depth. The wave parameters and the wave spectral variations are statistically analyzed, and the wave height distribution, the wave period distribution, and the joint distribution of wave height and period are discussed. The results indicate that the measured distribution of wave height agrees well with the Weibull distribution. When the spectral width is small, the various theoretical distribution models of wave period have their own reference values for the study of the distribution of measured wave period. The measured distribution of wave period has the best agreement with the Weibull distribution when the spectral width is large. The Longuet-Higgins model (1983) and the Sunfu model can be fitted to the joint distribution of wave height and period in this sea area, but the fitting effect is poor. The dominant wave direction and the strong wave direction are both E, with a frequency value of 40.27%. The maximum wave height (H_max) of 2.71m was observed during the observation period due to the influence of typhoon Talim.

基于2016年10月至2017年9月在水深7.5m的波浪观测站进行的AWAC测量数据，得出了三门湾近岸水域的波浪特征。对波参数和波谱变化进行统计分析，讨论了波高分布，波周期分布以及波高和周期的联合分布。结果表明，测得的波高分布与韦布尔分布吻合良好。当频谱宽度较小时，各种波浪周期的理论分布模型对于研究实测波浪周期的分布具有各自的参考值。当频谱宽度较大时，测得的波周期分布与威布尔分布具有最佳一致性。Longuet-Higgins模型（1983年）和Sunfu模型可以拟合该海域波高和周期的联合分布，但拟合效果较差。主波方向和强波方向均为E，频率值为40.27％。最大波高（由于台林塔林的影响，观测期内观测到的H _max）为2.71m。