Risk Assessment and Design of Prevention Structures for Enhanced Tsunami Disaster Resilience (RAPSODI)/Euro-Japan Collaboration

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Date

2016-12-01

Author

Harbitz, C. B.
Nakamura, Y.
Arikawa, T.
Baykal, Cüneyt
Dogan, G. G.
Frauenfelder, R.
Glimsdal, S.
GÜLER, HASAN GÖKHAN
Issler, D.
Kaiser, G.
Kanoğlu, Utku
KISACIK, DOĞAN
Kortenhaus, A.
Lovholt, F.
Maruyama, Y.
Sassa, S.
Sharghivand, N.
Strusinska-Correia, A.
Özyurt Tarakcıoğlu, Gülizar
Yalçıner, Ahmet Cevdet

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The 2011 Tohoku event showed the massive destruction potential of tsunamis. The Euro-Japan "Risk assessment and design of prevention structures for enhanced tsunami disaster resilience (RAPSODI)" project aimed at using data from the event to evaluate tsunami mitigation strategies and to validate a framework for a quantitative tsunami mortality risk analysis. Coastal structures and mitigation strategies against tsunamis in Europe and Japan are compared. Failure mechanisms of coastal protection structures exposed to tsunamis are discussed based on field data. Knowledge gaps on failure modes of different structures under different tsunami loading conditions are identified. Results of the wave-flume laboratory experiments on rubble mound breakwaters are used to assess their resilience against tsunami impact. For the risk analysis, high-resolution digital elevation data are applied for the inundation modeling. The hazard is represented by the maximum flow depth, the exposure is described by the location of the population, and the mortality is a function of flow depth and building vulnerability. A thorough search for appropriate data on the 2011 Tohoku tsunami was performed. The results of the 2011 Tohoku tsunami mortality hindcast for the city of Ishinomaki substantiate that the tsunami mortality risk model can help to identify high-mortality risk areas and the main risk drivers.

Subject Keywords

Concert-Japan rapsodi project, Risk analysis, Laboratory experiments, Numerical modeling, Impact loads, Coastal mitigation, Field survey, 2011 Tohoku tsunami

URI

https://hdl.handle.net/11511/46965

Journal

COASTAL ENGINEERING JOURNAL

DOI

https://doi.org/10.1142/s057856341640012x

Collections

Department of Civil Engineering, Article

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Citation Formats

C. B. Harbitz et al., “Risk Assessment and Design of Prevention Structures for Enhanced Tsunami Disaster Resilience (RAPSODI)/Euro-Japan Collaboration,” COASTAL ENGINEERING JOURNAL, pp. 0–0, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46965.