This article is supplementary to Myrhaug (2018) and presents some probabilistic properties of the surf parameter for individual waves and the spectral surf parameter for sea states by using distributions based on data from the Norwegian continental shelf. The average statistical features given by the mean value and the standard deviation of the two surf parameters are considered. Examples of results for the surf parameter are provided for a Phillips spectrum and a family of JONSWAP spectra for wind sea, and for sea states using a joint frequency table of significant wave height and mean zero-crossing wave period for combined wind sea and swell. The spectral surf parameter results are obtained by using a joint distribution of significant wave height and spectral surf parameter, and the mean statistical properties are given for joint frequency tables of significant wave height and mean zero-crossing wave period from three deep water locations on the Norwegian continental shelf. It is also demonstrated how the results can be applied to calculate the vertical wave runup elevation for breaking waves.

本文是对Myrhaug（2018）的补充，通过使用基于来自挪威大陆架的数据的分布，介绍了单个波浪的冲浪参数和海况的频谱冲浪参数的一些概率性质。考虑由两个冲浪参数的平均值和标准偏差给出的平均统计特征。提供了用于风海的菲利普斯谱和一系列JONSWAP谱的冲浪参数结果示例，并使用了具有显着波高和平均零交叉波周期的联合频率表针对风海和海浪组合的海况。通过使用有效波高和频谱冲浪参数的联合分布获得频谱冲浪参数结果，并给出了来自挪威大陆架三个深水位置的重要波高和平均零交叉波周期的联合频率表的平均统计特性。还演示了如何将结果应用于计算碎波的垂直波上升高度。