Assessment of future stability of breakwaters under climate change

Hiroshi Takagi; Hidehiro Kashihara; Miguel Esteban; Tomoya Shibayama

doi:10.1142/S0578563411002264

Assessment of future stability of breakwaters under climate change

Hiroshi Takagi^*, Hidehiro Kashihara, Miguel Esteban, Tomoya Shibayama

^*Corresponding author for this work

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

54 Citations (Scopus)

Abstract

Climate change is expected to lead to increases in both sea level and typhoon intensity, which could threaten the stability of breakwaters in the future. In this study, calculations using the SWAN model showed that a 10% potential increase in the future wind speed of typhoons resulting from the warming of surface sea temperatures can lead to a 21% increase in the significant wave heights generated by these winds. To understand the effect that this would have on breakwater stability, the expected sliding distances for the breakwaters at Shibushi Ports in Japan were estimated using a probabilistic design method. The results show that in the future the expected sliding distances may become five times greater than at present, due to a combination of increases in sea level and wave height.

Original language	English
Pages (from-to)	21-39
Number of pages	19
Journal	Coastal Engineering Journal
Volume	53
Issue number	1
DOIs	https://doi.org/10.1142/S0578563411002264
Publication status	Published - 2011 Mar

Keywords

Breakwater
SWAN model
climate change
expected sliding distance
probabilistic design method

ASJC Scopus subject areas

Civil and Structural Engineering
Modelling and Simulation
Ocean Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1142/S0578563411002264

Cite this

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AU - Takagi, Hiroshi

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AU - Esteban, Miguel

AU - Shibayama, Tomoya

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AB - Climate change is expected to lead to increases in both sea level and typhoon intensity, which could threaten the stability of breakwaters in the future. In this study, calculations using the SWAN model showed that a 10% potential increase in the future wind speed of typhoons resulting from the warming of surface sea temperatures can lead to a 21% increase in the significant wave heights generated by these winds. To understand the effect that this would have on breakwater stability, the expected sliding distances for the breakwaters at Shibushi Ports in Japan were estimated using a probabilistic design method. The results show that in the future the expected sliding distances may become five times greater than at present, due to a combination of increases in sea level and wave height.

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Assessment of future stability of breakwaters under climate change

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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