Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 8
Articles | Volume 26, issue 8
https://doi.org/10.5194/nhess-26-3839-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-3839-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 8
Research article
 | 
17 Aug 2026
Research article |  | 17 Aug 2026

Regional modeling of the impacts of tidal flooding in the context of average sea level rise in low-lying areas of Brazil's semi-arid coast

Thiago Cavalcante Lins Silva, Marco Túlio Mendonça Diniz, Paulo Victor do Nascimento Araújo, José Yure Gomes dos Santos, Bruno Ferreira, and Jucielho Pedro da Silva

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Short summary
This study analyzes the risks of sea-level rise along Brazil’s semi-arid coast, a vulnerable, low-lying region. We used open-access data to assess future flood risks and estimate potential damage to homes, cities, and salt production areas. The results show that up to 14 % of the region could be flooded under extreme conditions, causing significant impacts on local communities and their livelihoods. These findings can support planning and adaptation efforts in vulnerable coastal regions.
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