Análise temporal da morfodinâmica da praia de Ponta Negra (Natal/RN): comparação entre os anos de 2012 a 2024

Abstract

Beach morphodynamics is essential to understand the compartmentalization and evolution of beaches, integrating natural processes and anthropic actions. This study aimed to evaluate the temporal morphodynamic trend of Praia de Ponta Negra, located in the city of Natal, the capital of the state of Rio Grande do Norte, between 2012 and 2024, with a focus on changes in sedimentary balance. The research employed bibliographic analysis, fieldwork, and data processing using geospatial software, covering topographic, sedimentary, hydrodynamic, and climatic aspects. The results indicated significant changes in coastal dynamics, showing that interventions such as revetments partially mitigated erosion but did not prevent its intensification in specific areas, exacerbated by disorderly occupations. Granulometric, hydrodynamic, and climatic analyses revealed marked variations in 5 I beach compartments. In light of the results obtained, the integration of management actions with research that reveals the natural dynamics of beaches is emphasized. The findings of this study contribute to the development of effective territorial planning and coastal management strategies, as well as to future monitoring based on historical comparisons, essential for hydraulic fill management and mitigation of coastal erosion impacts.