Statistical Properties of Quiescent Periods from Wave Power Spectral Density

Statistical Properties of Quiescent Periods from Wave Power Spectral Density
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波浪功率谱密度的静止周期的统计特性

DOI:
10.1109/oceanse.2019.8867574
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发表时间:
2019
期刊:
OCEANS 2019 - Marseille
影响因子:
--
通讯作者:
J. Christmas
J. Christmas
中科院分区:
--
文献类型:
--
作者:
M. Al;M. Belmont;J. Christmas

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众所周知,在大多数海洋条件下,大浪组与小浪组交替出现。这些较小的波组被称为静止期。随着确定性海浪预测(DSWP)的新兴技术,它已经成为可能,以预测这些静止期的发生,从而利用它们来运行更安全的海上作业。在这项工作中,我们提出了一个统计模型,描述了一个选定的阈值高度的静止期的概率分布,基于海功率谱密度。这项工作补充了DSWP的好处,它可以作为一个规划工具,以评估当前或预测的海况进行特定的海上作业的可行性。所提出的方法进行评估,使用模拟海浪数据的基础上,标准的海洋谱。
It is well known that in most sea conditions sets of large waves alternate with sets of smaller waves. These sets of smaller waves are known as quiescent periods. With the new emerging technology of deterministic sea wave prediction (DSWP), it has become possible to predict the occurrence of these quiescent periods and hence exploit them to run safer marine operations. In this work, we present a statistical model that describes the probability distribution of the quiescent periods for a selected threshold height, based on the sea power spectral density. This work compliments the benefits of DSWP and it could serve as a planning tool to assess the favorability of a prevailing or forecasted sea state to carry out specific maritime operations. The presented method is evaluated using simulated sea waves data based on standard oceanographic spectra.
DOI: 10.1016/j.apor.2019.01.027
发表时间: 2019
影响因子: 4.3
作者:
Belmont M
通讯作者: Belmont M