TSUNAMI RUNUP AMPLIFICATION OF BREAKING AND NON-BREAKING ERROR-FUNCTION WAVES OVER A SLOPING BEACH IN SHADOW ZONE BY A SMALL ISLAND

Sunghoon Han; James Kaihatu; Patrick Lynett; Costas Synolakis

doi:10.9753/icce.v36v.papers.13

No. 36v (2020), Full Length Papers

No. 36v (2020)

TSUNAMI RUNUP AMPLIFICATION OF BREAKING AND NON-BREAKING ERROR-FUNCTION WAVES OVER A SLOPING BEACH IN SHADOW ZONE BY A SMALL ISLAND

Full Length Papers

https://doi.org/10.9753/icce.v36v.papers.13

Published 2020-12-31

Sunghoon Han
James Kaihatu
Patrick Lynett
Costas Synolakis

Sunghoon Han

James Kaihatu

Patrick Lynett

https://orcid.org/0000-0002-2856-9405

Costas Synolakis

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How to Cite

Han, S., Kaihatu, J., Lynett, P., & Synolakis, C. (2020). TSUNAMI RUNUP AMPLIFICATION OF BREAKING AND NON-BREAKING ERROR-FUNCTION WAVES OVER A SLOPING BEACH IN SHADOW ZONE BY A SMALL ISLAND. Coastal Engineering Proceedings, (36v), papers.13. https://doi.org/10.9753/icce.v36v.papers.13

Abstract

The time series of free surface elevation measured in and outside the shadow zone were compared and analyzed in the time-frequency domain by employing the continuous wavelet transform. Regardless of the conditions of the ERF wave in the shadow zone, an increase in magnitude of energy is noticeable not only in the peak frequency within a range of approximately 0.8 to 1 Hz but also in the low-frequency range of around 0.1 Hz corresponding to second up to third crest of the leading wave. To determine the effective frequency of ERF waves and evaluate their runup characteristics, we applied a new method of describing the ERF wave, which consists of linear superposition of two solitary waves. As a result, the ERF waves show the same trend in runup characteristics as for solitary waves.

https://doi.org/10.9753/icce.v36v.papers.13

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References

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TSUNAMI RUNUP AMPLIFICATION OF BREAKING AND NON-BREAKING ERROR-FUNCTION WAVES OVER A SLOPING BEACH IN SHADOW ZONE BY A SMALL ISLAND

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