A Study on Detecting T-Phase for Tsunami Warning System

• HANATANI Hitoshi

  East Nippon Expressway Company Limited

• KOSHIMURA Shunichi

  Tohoku University

• MEGURO Kimiro

  The University of Tokyo

Bibliographic Information

Other Title

• 海中音波観測による津波の検知と津波警報システムへの応用に関する研究
• カイチュウ オンパ カンソク ニ ヨル ツナミ ノ ケンチ ト ツナミ ケイホウ システム エ ノ オウヨウ ニ カンスル ケンキュウ

Abstract

This research aims to discuss a possibility of tsunami early warning system with the observation of hydro-acoustic waves (T-phase) caused by sudden sea-bed disturbance by a fault rupture. The authors derived an analytical solution of sea surface disturbances of slightly compressible ocean when the limited width of sea bottom is uplifted on a uniform slope to push up overlying water with the speed of V₀ and within the time duration of τ. Based on the analytical solutions obtained, we discuss the relationships between T-phase characteristics and the seismic parameters of rupture width, rise time and rupture velocity.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 66 (1), 1321-1325, 2010

  Japan Society of Civil Engineers

Keywords

• T-phase
• tsunami forecasting

Details

• CRID: 1390001205320097024
• NII Article ID: 130004956506
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.66.1321
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 11237373
• Web Site: http://id.ndl.go.jp/bib/11237373
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11237373
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed