Análise da morfodinâmica de uma seção do rio Ibicuí através de imagens de satélite para o período de 1985 a 2024

Abstract

The city of Itaqui, located on the western border of the state of Rio Grande do Sul, is a region marked by its close relationship with the waters that surround it. Over the years, this proximity to watercourses has brought both benefits and challenges, with one of the most notable being the recurrence of floods due to the high rainfall volume in the area. In this context, the present study focuses on the analysis of the morphodynamics of the Ibicuí River, a watercourse of great significance in the region. The Ibicuí River is a tributary of the Uruguai River, which in turn is part of the Platina Basin, eventually flowing into the Atlantic Ocean to the west of the state of Rio Grande do Sul. The importance of this river in the life of the Itaqui community is undeniable, influencing economic, social, and environmental aspects. The objective of this work is to conduct a thorough monitoring of the evolution of the Ibicuí River over five decades, covering the period from 1970 to 2024. Using remote sensing techniques and geomorphological mapping, the research aims not only to understand the river's fluvial dynamics but also to investigate the impacts of extreme hydrological events on the rainfall and river discharge regime in the region. The knowledge generated by this analysis will provide valuable information for understanding changes in the landscape and in water resource management.