风浪方向分布模式的比较

本文对目前常用的几种风浪方向分布模式进行了分析对比，进而根据由浪高仪阵列和ＥＮＤＥＣＯ９５６测波浮标在我国各海区测得的风浪方向谱，从波能方向分布、方向累积分布、方向分布的峰值和标准差四个方面，与光易恒、Ｈａｓｓｅｌｍａｎｎ和Ｄｏｎｅｌａｎ等分别由观测得到的经验方向分布以及文圣常等由解析方法得到的风浪方向谱进行了比较，结果表明：Ｄｏｎｅｌａｎ分布与实测结果比较一致，文圣常谱也较接近。此外，笔者在渤海由仪器阵列实测方向谱拟合得到的方向分布（改进的光易模式）与各地实测资料也比较符合。

COMPARISON OF THE DIRECTIONAL SPREADING MODELS OF WIND WAVES

Several wave directional spreading models in common use are reviewed and compared in this paper. Morever, the wave directional spectra measured with the wave gage array and the ENDECO 956 buoys from some sea areas around China are compared with the Mitsuyasu' s model, the Hasselmann' s model and the Donelan' s model, which were obtained from the field observation, and the Wen' s Wave directional spectrum which was derived analytically, according to four parameters, i. e. the directional spreading,the cumulative curve of the spreading,the maximun and the standard deviation of the spreading.The results show that the Donelan' s model conforms to the measured spreading best and the Wen' s model takes the second place. Morever ,the modified Mitsuyasu' s model which was obtained by authors to fit the measured directional spectra by a wave gage array in the Bahai Sea is also in agreement with the field data.