The complexity of the coastal zone: definition of typologies in Portugal as a contribution to coastal disaster risk reduction and management

• Autor(a) principal: Barros, José Leandro
• Data de Publicação: 2023
• Outros Autores: Santos, Pedro Pinto, Tavares, Alexandre Oliveira, Freire, Paula, Fortunato, André Bustorff, Rilo, Ana, Oliveira, Filipa S.B.F.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10451/57459
• topic: Coastal typologies; Coastal zone; Portugal; Risk management; Disaster risk reduction; Cluster analysis; Principal component analysis

Mainland Portugal presents an extensive, diversified and complex coastal zone. This diversity gives rise to diverse geomorphologic features which support different densities of human occupancy and a range of land uses and activities. In this sense, the coastal zone becomes an area of great national strategic value, but has also into a multi-hazard zone. To understand this complexity, two statistical techniques, namely Cluster Analysis and Principal Component Analysis, were used to identify and differentiate, between the different coastal typologies, based on a set of variables that express the territorial complexity and the occurrences and impacts of coastal flooding. The chosen methodology enabled a diverse set of coastal typologies to be identified, which contributes towards differentiating local specific characteristics. The holistic and differentiating nature of the applied methodology and the results obtained allows it to contribute to the definition of mitigation strategies and the implementation of adaptation measures. The results enable us to define a set of typologies associated with Coastal Disaster Risk Reduction and Management which are an important contribution to comprehensive coastal flood risk assessment and management.