The effect of within-year wave climate variability on the predicted extreme significant wave heights for the design of ship structures is examined. The significant wave height data is taken from ERA 5 database along frequent shipping routes. Monthly and annual extreme significant wave heights are extracted, and Gumbel distributions are fitted, respectively, using Maximum Likelihood Estimation. Monthly extreme wave heights are then combined, using the method proposed by Carter and Challenor [(1981). Estimating return values of environmental parameters. Q J R Metereol Soc. 107(451):259–266], to account for the effect of intra-annual climate variability. Long-term extreme values by two methods are compared for individual locations and shipping routes. Consequences on the extreme wave bending moments are explored, comparing the results to IACS rules. It was found that neglecting within-year wave climate variability leads to the underestimation of extreme significant wave heights and wave bending moments by up to 10 %. .


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Bias in estimates of extreme significant wave heights for the design of ship structures caused by neglecting within-year wave climate variability


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2023-04-03


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Maximum entropy modelling of extreme significant wave heights on the Portuguese coast

    Petrov, V. / Soares, C. Guedes / Gotovac, H. | TIBKAT | 2012


    Climate Change and Extreme Wave Heights in the North Atlantic (527)

    Challenor, P. G. / Wimmer, W. / Ashton, I. | British Library Conference Proceedings | 2005


    Estimation of extreme wave heights using GEOSAT measurements

    Panchang, V. / Zhao, L. / Demirbilek, Z. | Tema Archiv | 1999


    Design Wave Episodes for Extreme Value Ship Responses

    Dietz, J. S. / Friis-Hansen, P. / Jensen, J. J. | British Library Conference Proceedings | 2004


    Criterion for neglecting of free oscillations of ship in seaway

    Radosavljevic, L.B. | Engineering Index Backfile | 1959