Prediction of Occurrences of Steep and High Waves in Deep Water
Prediction of Occurrences of Steep and High Waves in Deep Water
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DOI：
10.1061/(asce)0733-950x(1987)113:2(122
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发表时间：
1987-03
期刊：
影响因子：
--
通讯作者：
D. Myrhaug;S. P. Kjeldsen
中科院分区：
文献类型：
--
作者：
D. Myrhaug;S. P. Kjeldsen
本文用两种不同的波峰前陡度和波高联合分布的参数模型，对给定海况下深水中陡波和高波的相遇概率进行了估计。参数模型适用于相同的数据集，数据来自挪威大陆架海上测量获得的波浪数据的零下交分析。用JONSWAP谱族的各参数模型估计了不同波峰前陡度的波浪发生概率。给出了一个例子，其中“极端波浪”的发生概率，这被认为是小型船舶倾覆的关键，估计与一个参数模型的海况描述的有效波高和平均过零周期。
Estimates for encounter probabilities of occurrence of steep and high waves in deep water for given sea states by using two different parametric models for the joint distribution of crest front steepness and wave height are presented. The parametric models are fitted to the same data set, with data from a zero‐downcross analysis of wave data obtained from measurements at sea on the Norwegian continental shelf. The probability of occurrence of waves with different crest front steepness are estimated with each parametric model for a family of JONSWAP spectra. An example is given where the probabilities of occurrence of “extreme waves,” which are considered to be critical to capsizing of smaller vessels, are estimated with one parametric model for sea states described by significant wave height and mean zero‐crossing period.