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dc.contributor.authorVinayan, S.
dc.contributor.authorSanilKumar, V.
dc.contributor.authorSajeev, R.
dc.date.accessioned2025-01-21
dc.date.accessioned2025-01-21T10:49:57Z
dc.date.available2024-12-01
dc.date.available2025-01-21T10:49:57Z
dc.date.issued2024
dc.identifier.citationJournal of Oceanography,vol.80(6);2024;pp.377-391
dc.identifier.issn1573-868X
dc.identifier.otherhttps://link.springer.com/article/10.1007/s10872-024-00733-9#citeas
dc.identifier.urihttps://doi.org/10.1007/s10872-024-00733-9
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9361
dc.descriptionIF2023=1.3
dc.description.abstractExploring the variability in design wave heights through extreme value analysis is crucial for understanding extreme oceanographic conditions and is paramount for the safe design and operation of offshore structures. This research delves into a comprehensive analysis of wave height variability in the Indian shelf seas, focusing on wave heights for a 100-year return period at 30 locations using 42 years of reanalysis data. The study employs the Generalized Extreme Value distribution and the Generalized Pareto Distribution (GPD), utilizing the annual maxima approach with three methods: maximum likelihood, probability-weighted moments, and moments of probability scale. The GPD Peaks Over Threshold (POT) approach is explored with thresholds estimated using various (91 to 99) percentiles, alongside a graphical approach utilizing threshold determination through mean residual life (MRL) plots. Results indicate that the GPD POT approach, particularly when employing thresholds derived from MRL plots, outperforms other methods. Thresholds obtained by MRL method closely align with the thresholds obtained through the 99 percentile for all locations in the Arabian Sea. This investigation not only enhances our understanding of the dynamic wave processes in the Indian shelf seas but also underscores the efficacy of specific statistical distributions and approaches in the evaluation of design wave heights
dc.languageen
dc.publisherSpringer
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleVariabilities in the estimate of 100-year return period wave height in the Indian shelf seas
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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