急激な底面変動により水面に発生する高周波成分に関する水理実験

抄録

A reliability of the tsunami warning system depends on its capacity for detecting tsunamis and the present systems use observed seismic waves to detect them. Unfortunately, the detection method may underestimate some kinds of tsunamis. Then, it is expected to develop a new tsunami detection system to observe sea surface directly by using remote sensing. The authors had proposed high frequency component of sea surface water waves due to a crustal deformation as the detection index. In this study, the waves were generated by using an underwater shaking table and spectral analysis was carried out to understand a relationship between the waves and bottom deformation.