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Abstract

The hydrodynamic and morphodynamic characterization of areas with potential for the installation of wind farms in Lagoa dos Patos is necessary as part of the planning for future wind energy projects. The aim of this study is to use computational modeling to describe the hydrodynamics of the lagoon system, focusing on areas with the greatest potential for wind farm installation. The three-dimensional hydrodynamic module TELEMAC-3D and the morphodynamic module SISYPHE, both from the Open TELEMAC-MASCARET system, were used in coupling for numerical simulations covering the period from 2005 to 2009. The analyses considered parameters that force the lagoon system, such as wind components and the intensity of river discharges into the system, and variables that respond to these forces, such as flow rate, current velocity, and bottom evolution. The results indicate significant seasonal variations in wind components and discharge events that respond to climatic events, but mainly to meteorological events that control hydrodynamic parameters such as currents and the free surface of the lagoon. This relationship controls sediment mobilization and bottom morphology evolution, highlighting the need for a deep understanding of these interactions for the proper planning of wind farm installation and maintenance operations, in order to minimize environmental impacts

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