A 2-D Model for the Guaiba Estuary (Brazil)by Jose A. O. De Jesus, Univ of Sao Paulo, San Carlos, Brazil,
Joel M. Branski, Univ of Sao Paulo, San Carlos, Brazil,
Luis C. H. Ferreira, Univ of Sao Paulo, San Carlos, Brazil,
Abstract: On the northeastern edge of the Guaiba is Porto Alegre, with more than 1 million inhabitants. A navigation channel through the Guaiba Estuary and the Patos Lagoon links the city to the ocean. Hazardous raw materials that feed petrochemical industries are transported from the ocean through the navigation channel. The Brazilian National Water and Electrical Power Department began in 1980 a program of measurements with the aim of improving the management decisions in the Guaiba Estuary region. Later, a modeling approach was introduced using a 2-D depth-averaged hydrodynamic model to simulate the combined influences of variable bathymetry and geometry, atmospheric and tidal forcing, throughflow, residual and baroclinic circulation, Coriolis force and local and advective accelerations. A 2-D depth-averaged model for transport of dynamically passive constituents has been coupled to the hydrodynamic model. Refs.
Subject Headings: Two-dimensional models | Estuaries | Hydrologic models | Mathematical models | Developing countries | Hydrodynamics | Tides | Water circulation | Navigation (geomatic) | Brazil | South America
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