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Modeling propagation and inundation of the 11 March 2011 Tohoku tsunami

F. Løvholt ; G. Kaiser ; S. Glimsdal ; L. Scheele ; C. B. Harbitz ; G. Pedersen

Natural hazards and earth system sciences, 01 April 2012, Vol.12(4), pp.1017-1028 [Evalué par les pairs]

  • Titre :
    Modeling propagation and inundation of the 11 March 2011 Tohoku tsunami
  • Auteur(s) : F. Løvholt ; G. Kaiser ; S. Glimsdal ; L. Scheele ; C. B. Harbitz ; G. Pedersen
  • Notes : On 11 March 2011 the Tohoku tsunami devastated the east coast of Japan, claiming thousands of casualties and destroying coastal settlements and infrastructure. In this paper tsunami generation, propagation, and inundation are modeled to hindcast the event. Earthquake source models with heterogeneous slips are developed in order to match tsunami observations, including a best fit initial sea surface elevation with water levels up to 8 m. Tsunami simulations were compared to buoys in the Pacific, showing good agreement. In the far field the frequency dispersion provided a significant reduction even for the leading wave. Furthermore, inundation simulations were performed for ten different study areas. The results compared well with run-up measurements available and trim lines derived from satellite images, but with some overestimation of the modeled surface elevation in the northern part of the Sanriku coast. For inundation modeling this work aimed at using freely available, medium-resolution...
  • Liens : Natural hazards and earth system sciences, 01 April 2012, Vol.12(4), pp.1017-1028 [Evalué par les pairs]
  • Sujets : Geography
  • Langue : Anglais
  • Type : Article
  • ISSN: 1561-8633 ; E-ISSN: 1684-9981 ; DOI: 10.5194/nhess-12-1017-2012

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