Record number :

2280230

Title of article :

A generalized approach for long-term modelling of extreme crest-to-trough wave heights

Author/Authors :

Arena، نويسنده , , Felice and Pavone، نويسنده , , Diego، نويسنده ,

Issue Information :

روزنامه با شماره پیاپی سال 2009

Pages :

9

From page :

217

To page :

225

Abstract :

This paper deals with the long-term modelling of high sea waves. The solution is given for the return period of sea storms during which an arbitrary chosen number of waves, with crest-to-trough heights exceeding a fixed threshold, occur. This return period is derived starting from the Equivalent Triangular Storm (ETS) model, which associates a triangle to each actual storm and thus represents a significant wave height time series at a fixed location by means of a sequence of triangular storms. The short-term statistics is then applied to investigate the occurrence of large crest-to-trough wave heights during a given storm. Finally, by combining the statistical distribution of significant wave heights, the ETS model and the short-term wave statistics, the solution is given for the return periods RN and R⩾N of a sea storm in which N or at least N waves higher than a fixed threshold occur. The values of RN are then calculated, starting from data of two buoys moored in the Pacific Ocean and in the Mediterranean Sea.

Keywords :

Return period , storm , wave , long-term

Journal title :

Ocean Modelling

Serial Year :

2009

Link To Document :