Variability and Wave Power for Open Ocean Wave Conditions of the Peru Basin

Torre, Dennys De La; Ortega, Arturo

doi:10.1109/eircon56026.2022.9934093

Cited by 1 publication

(1 citation statement)

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“…According to the previous works, when there is no available spectral data, a predefined standard spectral form is selected; in most cases, the JONSWAP spectrum has been used. However, this assumption may considerably overestimate the wave energy during its assessment, as demonstrated by [12]. In that work, using a Bretschneider spectrum, the wave power of the Peru Basin was estimated to be almost 22 kW/m, in contrast to the 32 kW/m reported by [5], who used a JONSWAP spectrum.…”

Section: Introductionmentioning

confidence: 85%

On the Estimation of the Wave Energy Period and a Kernel Proposal for the Peru Basin

Torre

Luyo

Ortega

2023

JMSE

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The energy period is a crucial parameter needed for assessing wave energy. This parameter is regularly approximated using standard wave spectrums that do not always characterise an actual ocean region, even more if this region is far from the Northern Hemisphere, where most of the energy period approximations have been developed. In this work, diverse approximations for the energy period were evaluated using spectral data from a region of the Peru Basin. It included the assessment of a proposed Kernel “coefficient” curve. They were assessed regarding their time series, wave climate, and temporal variability. The time series analysis showed that the approximations based on the peak period do not have a realistic physical representation of ocean waves. On the other hand, the proposed Kernel correlation gave the best results for computing the energy period and the monthly/seasonal variability indexes for temporal variability analysis. Additionally, the correlations based on the zero-up-crossing period generated the best results for computing the coefficient of variation. Conversely, the highest errors were calculated for the correlations based on the traditional Bretschneider and JONSWAP spectrums. The wave climate indicated an annual average energy period equal to 9.8 s, considered stable due to its low variability.

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Section: Introductionmentioning

confidence: 85%