This paper presents the development of a water quality model coupled with an open source Geographic Information System (GIS) software representing the impacts of large scale pollutant releases, with a systemic view of the entire basin, and simplified tools to deal with typical data scarcity situations. In the proposed model, called SIAQUA-IPH, a methodology based on the pollutant transport equation analytical solution through a scheme of linear superposition is adopted. The paper also presents tests in which model results were compared to tracer releases experiments in the Paraíba do Sul river, where promising results were obtained considering the uncertainties involved.
water quality; modeling; SIAQUA-IPH
