Tsunami flow measurement using the video recorded during the 2011 Tohoku tsunami attack

Shunichi Koshimura, Satomi Hayashi

Research output: Contribution to conferencePaperpeer-review

19 Citations (Scopus)

Abstract

The 2011 Tohoku earthquake tsunami totally devastated the communities of Sanriku coast. Because of the destruction of tsunami observation facilities, such as tide gauges, there are difficulties to understand local tsunami characteristics. The author analyzed the videos recorded at two sites to identify the local tsunami inundation characteristics. The video analysis based on 2-D projective transformation and field measurements enables to estimate the tsunami front and flow velocities precisely, e.g. 8 m/s on Sendai plain and 6 m/s at Onagawa town. The results contribute to understand the local tsunami flow characteristics that were not documented by the observation.

Original languageEnglish
Pages6693-6696
Number of pages4
DOIs
Publication statusPublished - 2012
Event2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany
Duration: 2012 Jul 222012 Jul 27

Conference

Conference2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
Country/TerritoryGermany
CityMunich
Period12/7/2212/7/27

Keywords

  • Flow measurement
  • GIS
  • The 2011 Tohoku earthquake tsunami
  • Video analysis

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