The limitations of statistical low runs prediction in rough seas: A study based on real wave data
The limitations of statistical low runs prediction in rough seas: A study based on real wave data
复制标题
波涛汹涌的大海中统计低速运行预测的局限性:基于真实波浪数据的研究
DOI:
10.1016/j.oceaneng.2019.02.022
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发表时间:
2019
影响因子:
5
通讯作者:
Caiazzo G
中科院分区:
文献类型:
--
作者:
Caiazzo G
This work aims to estimate the feasibility of wave runs statistical prediction in rough seas, with a specific application of Kimura's theory (Kimura, 1980). According to Kimura, the probability of a low run of waves of assigned length is a function of the correlation between consecutive waves in a group. Time series from wave buoy measurements (located at Bideford Bay, England and data downloaded from the Channel Coast website) have been used to illustrate the analysis. The spectral analysis showed that higher values of the significant wave height correspond to broader bandwidth spectra. The Kimura's low runs prediction is noticeably affected by this aspect: by plotting the low runs probability against the number of incoming waves, narrow spectra show a steeper behaviour of the low runs probability curve, whereas broader spectra correspond to flat probability curves settled on lower values. Therefore, it appears that broader spectra are characterised by more grouping phenomena. Moreover, the Kimura's estimation has been calculated in an adaptive frame applied to the signal, in order to test the sensitivity to the length of the data; a minimum length of 6–8 h has been found to have a stable prediction of the low runs probability.
DOI:
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发表时间:
2010
期刊:
影响因子:
--
作者:
J. Girón;J. Jiménez
通讯作者:
J. Jiménez
影响因子:
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作者:
S. Elgar;R. Guza;R. Seymour
通讯作者:
R. Seymour
DOI:
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发表时间:
1981
期刊:
影响因子:
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作者:
H. Barrett;W. Swindell
通讯作者:
W. Swindell