Verificação e comprovação das modelagens hidrodinâmica e de transporte de sedimentos na área costeira do Porto do Pecém

Abstract

In order to understand and predict geomorphologic evolutions in coastal seas and estuaries a model is needed which describes the motion water dynamics, sediment movement and the boundaries erodible evolution (like the bottom). The latter two modules require quantitative information about erosion, deposition and sediment transport. The structures are built long the coast for some purposes and cause modifications in the natural environment with change of the circumstantial shoreline. The conception of the port of Pecém required the government to study and to hinder the possible alterations of the coast line next to the constructed structures. Then, through numerical simulation, using modern software, MIKE21 and LITPACK, it was studied and foreseen the behavior of the shoreline in the ten following years from the beginning of the construction, 1996. This work verifies the reality of that forecast. The results of the shoreline dynamics in the port of Pecém region had been gotten through comparisons of its evolution since the beginning of its construction, revealing the transformations caused by the sediment transport in two periods of study, before and after the construction of the provisory docking, in comparison with the results determined by the numerical simulations.