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Space-Time Extremes in Sea Storms

[+] Author Affiliations
Francesco Fedele

Georgia Institute of Technology, Savannah, GA

Felice Arena

Mediterranea University, Reggio Calabria, Italy

M. Aziz Tayfun

Kuwait University, Safat, Kuwait

Paper No. OMAE2011-49048, pp. 13-22; 10 pages
doi:10.1115/OMAE2011-49048
From:
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 2: Structures, Safety and Reliability
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4434-2
  • Copyright © 2011 by ASME

abstract

We present a stochastic model of sea storms to predict the maximum height of the wave surface over a given area during storms. To do so, we exploit the theory of Euler Characteristics of random excursion sets combined with a generalization of Boccotti’s equivalent triangular storm model (Boccotti, 2000) that describes an actual storm history in the form of a generic power law (Fedele and Arena, 2010). An analytical solution for the return period of extreme wave events over a given area and the associated statistical properties are given. We then assess the relative validity of the new model and its predictions by analyzing wave measurements retrieved from NOAA-NODC buoys moored offshore of the Atlantic and Pacific coasts.

Copyright © 2011 by ASME
Topics: Spacetime , Storms , Seas

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