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O aumento do nível do mar representa um desafio crescente para as zonas costeiras portuguesas. Este estudo avaliou a exposição das áreas urbanas do território continental português a diferentes cenários de subida do nível do mar (SNM) para os horizontes temporais de 2040, 2070 e 2100, com base no cálculo do Total Water Level, que integra maré astronómica, tempestades, runup, e projeções de SNM (RCP 2.6, 4.5 e 8.5). Os resultados indicam que 23% das áreas costeiras perigosas já são urbanas, podendo atingir 30% até 2100. Foram identificados 12 municípios prioritários para adaptação, evidenciando a urgência de políticas públicas integradas de gestão costeira sustentável.
Sea level rise (SLR) poses an increasing threat to Portugal’s coastal zones. This study assessed the exposure of urban areas along mainland Portugal to sea level rise scenarios (2040, 2070, and 2100) using Total Water Level estimation, integrating tidal, storm surge, runup, and IPCC/NASA SLR projections (RCP 2.6, 4.5, and 8.5). Results show that 23% of coastal hazard zones are currently urbanized, potentially rising to 30% by 2100. Twelve municipalities were identified as high-priority for adaptation. The findings highlight the urgent need for integrated coastal management policies and spatial planning strategies to mitigate risks and promote sustainable coastal resilience.
Sea level rise (SLR) poses an increasing threat to Portugal’s coastal zones. This study assessed the exposure of urban areas along mainland Portugal to sea level rise scenarios (2040, 2070, and 2100) using Total Water Level estimation, integrating tidal, storm surge, runup, and IPCC/NASA SLR projections (RCP 2.6, 4.5, and 8.5). Results show that 23% of coastal hazard zones are currently urbanized, potentially rising to 30% by 2100. Twelve municipalities were identified as high-priority for adaptation. The findings highlight the urgent need for integrated coastal management policies and spatial planning strategies to mitigate risks and promote sustainable coastal resilience.
Descrição
Palavras-chave
Riscos costeiros Subida do nível do mar Ordenamento do território Coastal risks Sea level rise Environmental management
Contexto Educativo
Citação
Editora
Universidade Aberta
