The report documents the theory, development, verification, and application of a mathematical model which predicts the hydrodynamic and water quality behavior of well-mixed tidal rivers and estuaries. The two-dimensional hydrodynamic behavior is predicted by solving by finite difference methods the one-dimensional forms of the equations of motion and continuity applied to a two-dimensional non-uniform grid network which characterizes the prototype. This same network is utilized as the basis for predicting simultaneously the distributions of up to five conservative or non-conservative water quality constituents utilizing advective and diffusive transport mechanisms. The results of model verification and sensitivity studies are presented as well as complete documentation, including program listings, flow diagrams, input and output formats, and sample output. (Author)

Includes bibliographical references. Microfiche.