Some Results from the Analysis of Metocean Data Collected During Storms in the Northern North Sea

Wolfram, Julian; Linfoot, Brian; Venugopal, Vengatesan

doi:10.3723/175605401783245552

Cited by 5 publications

(3 citation statements)

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“…Other definitions are based on the ratio between the crest of the maximum wave and significant wave and different authors chose different level of this ratio. Tomita and Kawamura [2000] have chosen a combination of the two ratios while others [ Wolfram et al , 2000; Clauss , 2002] opt for combinations between the abnormality index and some other global wave parameters.…”

Section: Introductionmentioning

confidence: 99%

Abnormal waves during Hurricane Camille

2004

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[1] A reanalysis is reported of the wave time series recorded during Hurricane Camille having as objective the identification of individual waves that satisfy current criteria defining abnormal or freak waves. It is shown that during the hurricane development, a very nonstationary situation has occurred during which the second-order sea state parameters changed significantly with time. The parameters of the largest individual waves in sea states which identify abnormal waves did not show any clear trend, and such waves occurred during the development stage and not when the significant wave height was the largest. It is argued that the present criteria of identification of abnormal waves are not satisfactory, as they do not take into account the nature of the sea states in which the waves occur.

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Section: Introductionmentioning

confidence: 99%

Abnormal waves during Hurricane Camille

2004

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“…The focus of this study is the estimation of extreme wave heights only, and a similar study for the associated wave period may be undertaken in future. In the meantime, to estimate the associated wave period, either joint probability models (bivariate distributions of extreme wave height and period), as suggested by Goda [10] and Wolfram et al [11], or an empirical relationship with wave height, as recommended by DNV, 2010 [12] may be used.…”

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confidence: 99%

“…To demonstrate this further, the set of estimates obtained was divided into 2 blocks, the first with estimates using 1-10 years' data, and the second using 10-20 years' data. Thus, the subsets obtained would be {H 100 (1), H 100 (2)… H 100 (10)} and {H 100 (11), H 100 (12)… H 100 (20)}. The means and standard deviations for these subsets were calculated for the five sites and are tabulated in Table 4.…”

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confidence: 99%