Establishment of the tsunami decay forecasting model

2015 Fiscal Year Final Research Report

• Project/Area Number: 24310132
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Natural disaster science
• Research Institution: Japan, Meteorological Research Institute
• Principal Investigator: Hayashi Yutaka 気象庁気象研究所, 地震津波研究部, 主任研究官 (40370332)
• Co-Investigator(Kenkyū-buntansha): IMAI Kentaro 国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, 研究員 (20554497) ; HOSHIBA Mitsuyuki 気象研究所, 地震津波研究部, 室長 (60510196)
• Research Collaborator: ABE Kuniaki ; OKADA Masami
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 津波 / コーダ波 / 水位観測 / 津波予測 / 伝達関数

Outline of Final Research Achievements

Studies focusing on "How tsunamis decay?" have been carried out by combining the analysis of observation data, numerical experiments of tsunami, analysis of ordinary coastal waves, and theoretical considerations. The new findings of this project include: the distribution of tsunami reflection points as estimated by observed waveforms, the periodic characteristics of tsunamis in inner bays or coastal areas derived from numerical experiences and ordinary coastal wave observations, and the theoretical considerations in the relationship between the strength of scattering in the open sea and the delay time between the arrival of the initial tsunami and its maximum tsunami. These findings will contribute to the development of a methodology to forecast "How long does this tsunami hazard continue?" in real-time.

Free Research Field

海岸工学・地球物理学