The effects of variable speeds of a submarine block slide on near-field tsunami amplitudes

Abdul Hayir

doi:10.1016/S0029-8018(03)00109-4

The effects of variable speeds of a submarine block slide on near-field tsunami amplitudes

Abdul Hayir^*

^*Corresponding author for this work

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

In this study, the motion of a submarine block slide, with variable velocities, and its effects on the near-field tsunami amplitudes are investigated. The numerical results show that the amplitudes generated by the slide are almost the same as those created by its average velocity when c̄/c_T>5, where c̄ is average velocity of the slide and c_T= √gh is the long period tsunami velocity in ocean of constant depth h. In contrast, the kinematic model of the slide must take into account time variations in the moving velocity, if c̄/c_T≤5, especially when c̄/c_T∼1.

Original language	English
Pages (from-to)	2329-2342
Number of pages	14
Journal	Ocean Engineering
Volume	30
Issue number	18
DOIs	https://doi.org/10.1016/S0029-8018(03)00109-4
Publication status	Published - Dec 2003

Keywords

Near-field tsunami amplitudes
Submarine block slide
Tsunami
Water waves
Wave focusing

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10.1016/S0029-8018(03)00109-4

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abstract = "In this study, the motion of a submarine block slide, with variable velocities, and its effects on the near-field tsunami amplitudes are investigated. The numerical results show that the amplitudes generated by the slide are almost the same as those created by its average velocity when {\=c}/cT>5, where {\=c} is average velocity of the slide and cT= √gh is the long period tsunami velocity in ocean of constant depth h. In contrast, the kinematic model of the slide must take into account time variations in the moving velocity, if {\=c}/cT≤5, especially when {\=c}/cT∼1.",

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N2 - In this study, the motion of a submarine block slide, with variable velocities, and its effects on the near-field tsunami amplitudes are investigated. The numerical results show that the amplitudes generated by the slide are almost the same as those created by its average velocity when c̄/cT>5, where c̄ is average velocity of the slide and cT= √gh is the long period tsunami velocity in ocean of constant depth h. In contrast, the kinematic model of the slide must take into account time variations in the moving velocity, if c̄/cT≤5, especially when c̄/cT∼1.

AB - In this study, the motion of a submarine block slide, with variable velocities, and its effects on the near-field tsunami amplitudes are investigated. The numerical results show that the amplitudes generated by the slide are almost the same as those created by its average velocity when c̄/cT>5, where c̄ is average velocity of the slide and cT= √gh is the long period tsunami velocity in ocean of constant depth h. In contrast, the kinematic model of the slide must take into account time variations in the moving velocity, if c̄/cT≤5, especially when c̄/cT∼1.

KW - Near-field tsunami amplitudes

KW - Submarine block slide

KW - Tsunami

KW - Water waves

KW - Wave focusing

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SP - 2329

EP - 2342

JO - Ocean Engineering

JF - Ocean Engineering

IS - 18

ER -

The effects of variable speeds of a submarine block slide on near-field tsunami amplitudes

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Keywords

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