Morphology change caused by the 2011 great tohoku tsunami wave - Mechanism of recent closure and breaching of the Nanakita River Mouth

Nguyen Xuan Tinh, Hitoshi Tanaka, Ryutaro Hirao, Eko Pradjoko, Akira Mano, Keiko Udo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The 2011 Great Tohoku Earthquake and Tsunami in March had caused a lot of damages to people and infrastructure in Japan. With a giant tsunami height plus the subsidence due to earthquakes have destroyed most of the nearshore constructions and coastal zone areas. According to measured data from the survey group (Mori et al. 2011); maximum tsunami wave height measured at the Nanakita area is about 14m. This Tsunami made the topography of this region changed drastically. Many breaching places occurred along the coast and river mouth. This study will focus on investigating the mechanisms of sediment transport and hydrodynamics leading to the river mouth was closed in about five months after the event and then breached in a different location during the river flood.

Original languageEnglish
Title of host publicationProceedings of the 33rd International Conference on Coastal Engineering 2012, ICCE 2012
Publication statusPublished - 2012 Dec 1
Event33rd International Conference on Coastal Engineering 2012, ICCE 2012 - Santander, Spain
Duration: 2012 Jul 12012 Jul 6

Publication series

NameProceedings of the Coastal Engineering Conference

Other

Other33rd International Conference on Coastal Engineering 2012, ICCE 2012
CountrySpain
CitySantander
Period12/7/112/7/6

Keywords

  • Breaching
  • Erosion
  • Great Tohoku Earthquake
  • Morphology Change
  • Nanakita River
  • Tohoku Tsunami

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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