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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 6 | Copyright

Special issue: Extreme seas and ship operations

Nat. Hazards Earth Syst. Sci., 14, 1407-1415, 2014
https://doi.org/10.5194/nhess-14-1407-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 05 Jun 2014

Research article | 05 Jun 2014

The North Sea Andrea storm and numerical simulations

E. M. Bitner-Gregersen1, L. Fernandez2, J. M. Lefèvre3, J. Monbaliu2, and A. Toffoli4 E. M. Bitner-Gregersen et al.
  • 1DNV GL Strategic Research and Innovation, Høvik, Norway
  • 2Department of Civil Engineering, KU Leuven, Heverlee, Belgium
  • 3Division Marine et Oceanographie, Meteo-France,Toulouse, France
  • 4Centre for Ocean Engineering Science and Technology, Swinburne University of Technology, Hawthorn, VIC. 3122, Australia

Abstract. A coupling of a spectral wave model with a nonlinear phase-resolving model is used to reconstruct the evolution of wave statistics during a storm crossing the North Sea on 8–9 November 2007. During this storm a rogue wave (named the Andrea wave) was recorded at the Ekofisk field. The wave has characteristics comparable to the well-known New Year wave measured by Statoil at the Draupner platform 1 January 1995. Hindcast data of the storm at the nearest grid point to the Ekofisk field are here applied as input to calculate the evolution of random realizations of the sea surface and its statistical properties. Numerical simulations are carried out using the Euler equations with a higher-order spectral method (HOSM). Results are compared with some characteristics of the Andrea wave record measured by the down-looking lasers at Ekofisk.

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