Destruction of the atafona beach system: relationship between the decrease in the flow of the Paraíba do Sul River and local geomorphology
DOI:
https://doi.org/10.19180/2177-4560.v19n22025p37-60Keywords:
Coastal erosion, Flow, Paraíba do Sul RiverAbstract
The Paraíba do Sul River, one of the most important watercourses in the Southeast region, flows through three states: São Paulo, Rio de Janeiro and Minas Gerais. Classified as a federal river, its management is carried out by the Paraíba do Sul River Basin Integration Committee (CEIVAP). Over the years, its flow has decreased due to projects such as transpositions, diversions of watercourses and reservoirs for power generation. One of the most obvious consequences of this reduction is the increase in the erosion process at the mouth of the river, in Atafona. The objective of this study is to analyze the flow of the Paraíba do Sul River basin, seeking to verify whether the decrease in flow is related to the increase in erosion on the Atafona beach. The methodology of the work is based on the analysis of studies already carried out on the subject, as well as on the monitoring of the flow of the river basin. We hypothesize that the reduction in river flow may have affected the transport and deposition of sediments in its lower course, contributing to the erosion process observed in Atafona. The results obtained through this analysis show that the reduction in flow has in fact accelerated the erosion process at the mouth.Downloads
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