STUDY ON SEA LEVEL RISE EFFECTS ON SHORELINE RETREAT ON A GRAVEL BEACH
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- FLORENTINA Sinta
- Dept. of Civil and Environmental Eng., Nagoya University
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- NAKAMURA Tomoaki
- Dept. of Civil and Environmental Eng., Nagoya University
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- CHO Yonghwan
- Dept. of Civil and Environmental Eng., Nagoya University
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- MIZUTANI Norimi
- Dept. of Civil and Environmental Eng., Nagoya University
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- TAKEUCHI Masayuki
- Mie Prefectural Government, Dept. of Prefectural Land Development
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抄録
<p> Climate change effects have become global concern through decades due to its emerging hazards. Sea Level Rise (SLR) is one of the effects which may cause harm to the coastal communities due to the risk of damages, such as shoreline retreat and beach erosion. There are many previous studies regarding the effect of SLR on sandy beaches. However, the study regarding gravel beach response under SLR is still rare. Therefore, this study is conducted to investigate the effect of SLR on the past shoreline change by using Bruun rule on currently eroded gravel beach, Ida beach in Shichiri-mihama coast, Mie Prefecture. By comparing the calculation result with the past shoreline change data obtained from network camera system, the proportion of SLR contribution in shoreline change can be assessed. Results shows that SLR contribution is ranging between 5.1 – 8.7% of the actual shoreline retreat from November 2017 to November 2019. This indicates that there are other factors such as extreme waves playing more dominant role in the shoreline change compared to SLR in this gravel beach.</p>
収録刊行物
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- 土木学会論文集B3（海洋開発）
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土木学会論文集B3（海洋開発） 77 (2), I_301-I_306, 2021
公益社団法人 土木学会
