Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features
Abstract Coastal areas, essential for human settlement and marine biodiversity, face persistent flood hazards. Integrating vegetation with traditional coastal defense structures, such as seawalls, offers a promising solution for robust and cost-effective flood mitigation. However, optimizing hybrid...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | npj Natural Hazards |
| Online Access: | https://doi.org/10.1038/s44304-025-00070-x |
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| _version_ | 1849761673514057728 |
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| author | Erfan Amini Reza Marsooli Somayeh Moazeni Bilal M. Ayyub |
| author_facet | Erfan Amini Reza Marsooli Somayeh Moazeni Bilal M. Ayyub |
| author_sort | Erfan Amini |
| collection | DOAJ |
| description | Abstract Coastal areas, essential for human settlement and marine biodiversity, face persistent flood hazards. Integrating vegetation with traditional coastal defense structures, such as seawalls, offers a promising solution for robust and cost-effective flood mitigation. However, optimizing hybrid vegetation-seawall solutions to enhance coastal protection while addressing varying risk tolerances is a challenging task. This study develops a novel framework combining a non-hydrostatic wave model, a data-driven surrogate model, and a multi-objective optimization algorithm to optimize hybrid designs. Results demonstrate that vegetation integration significantly reduces wave impacts, enhancing seawall performance. Optimized designs reveal that higher vegetation area provides greater wave energy dissipation, while vegetation density plays a more nuanced role depending on available space and risk tolerance levels. For critical infrastructure with low-risk tolerance, designs emphasize seawall height and moderate vegetation density, whereas high-risk tolerance prioritizes larger vegetated areas with lower density. The developed framework equips decision-makers to design hybrid systems that balance coastal protection and cost-effectiveness based on their specific objectives and constraints. |
| format | Article |
| id | doaj-art-31fede3505424da7aa44b310331b91f2 |
| institution | DOAJ |
| issn | 2948-2100 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Natural Hazards |
| spelling | doaj-art-31fede3505424da7aa44b310331b91f22025-08-20T03:05:56ZengNature Portfolionpj Natural Hazards2948-21002025-03-012111910.1038/s44304-025-00070-xHybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized featuresErfan Amini0Reza Marsooli1Somayeh Moazeni2Bilal M. Ayyub3Department of Civil, Environmental, and Ocean Engineering, Stevens Institute of TechnologyDepartment of Civil, Environmental, and Ocean Engineering, Stevens Institute of TechnologySchool of Business, Stevens Institute of TechnologyCenter for Technology and Systems Management, Dept. of Civil and Environmental Engineering, University of MarylandAbstract Coastal areas, essential for human settlement and marine biodiversity, face persistent flood hazards. Integrating vegetation with traditional coastal defense structures, such as seawalls, offers a promising solution for robust and cost-effective flood mitigation. However, optimizing hybrid vegetation-seawall solutions to enhance coastal protection while addressing varying risk tolerances is a challenging task. This study develops a novel framework combining a non-hydrostatic wave model, a data-driven surrogate model, and a multi-objective optimization algorithm to optimize hybrid designs. Results demonstrate that vegetation integration significantly reduces wave impacts, enhancing seawall performance. Optimized designs reveal that higher vegetation area provides greater wave energy dissipation, while vegetation density plays a more nuanced role depending on available space and risk tolerance levels. For critical infrastructure with low-risk tolerance, designs emphasize seawall height and moderate vegetation density, whereas high-risk tolerance prioritizes larger vegetated areas with lower density. The developed framework equips decision-makers to design hybrid systems that balance coastal protection and cost-effectiveness based on their specific objectives and constraints.https://doi.org/10.1038/s44304-025-00070-x |
| spellingShingle | Erfan Amini Reza Marsooli Somayeh Moazeni Bilal M. Ayyub Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features npj Natural Hazards |
| title | Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features |
| title_full | Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features |
| title_fullStr | Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features |
| title_full_unstemmed | Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features |
| title_short | Hybrid vegetation-seawall coastal systems for wave hazard reduction: analytics for cost-effective design from optimized features |
| title_sort | hybrid vegetation seawall coastal systems for wave hazard reduction analytics for cost effective design from optimized features |
| url | https://doi.org/10.1038/s44304-025-00070-x |
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