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Journal Article

Citation

Sato S. Proc. Jpn. Acad. Ser. B Phys. Biol. Sci. 2015; 91(6): 262-272.

Affiliation

Department of Civil Engineering, The University of Tokyo.

Copyright

(Copyright © 2015, Japan Academy)

DOI

10.2183/pjab.91.262

PMID

26062739

Abstract

Characteristics of the 2011 Tohoku Tsunami have been revealed by collaborative tsunami surveys extensively performed under the coordination of the Joint Tsunami Survey Group. The complex behaviors of the mega-tsunami were characterized by the unprecedented scale and the low occurrence frequency. The limitation and the performance of tsunami countermeasures were described on the basis of tsunami surveys, laboratory experiments and numerical analyses. These findings contributed to the introduction of two-level tsunami hazards to establish a new strategy for tsunami disaster mitigation, combining structure-based flood protection designed by the Level-1 tsunami and non-structure-based damage reduction planned by the Level-2 tsunami.


Language: en

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