Avaliação Geoespacial da Dinâmica Espaço-Temporal da Linha de Costa de São José da Coroa Grande, Pernambuco, Brasil
Geospatial Assessment of the Spatio-Temporal Dynamics of the São José da Coroa Grande Coastline, Pernambuco, Brazil
DOI:
https://doi.org/10.21680/2447-3359.2025v11n1ID36612Abstract
Coastline monitoring is essential to understanding the impact of human activities and climate change on the coastal zone. Regular monitoring of the position of the coastline is extremely important to analyze and select the most effective engineering solutions to contain coastal erosion, in addition to supporting a sustainable coastal management system. This study aims to evaluate the evolution of the coastline in São José da Coroa Grande, Pernambuco, over the last 49 years, using remote sensing techniques such as satellite images, unmanned aerial vehicles (UAVs), in addition to GNSS surveys. Coastal progradation and retrogradation rates were calculated, identifying the geomorphological elements that influence changes, such as erosion and sediment accumulation. The results revealed consistent patterns of erosion and accretion over the decades examined (1974, 1981, 1997 and 2023), highlighting a section with erosion of up to -114,291 m/year between 1974 and 1997. The study also highlighted seasonal dynamics of progradation and retrogradation in the area. It is recommended to integrate high spatial resolution remote sensing data and GNSS with oceanographic information for a more complete understanding of coastal changes in future research.
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