A Water-Quality Simulation Model for Well Mixed Estuaries and Coastal Seas

Vol. II, Computation Procedures

by Jan J. Leendertse, Eugene C. Gritton

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A water-quality model developed in RM-6230 is extended to include the transport of several waste constituents and a reaction model that simulates the biological and chemical interactions among these constituents in coastal waters. The report describes the numerical methods used to approximate the system of partial differential equations for the tidal flow and dispersion and transport of constituents. The model simulates changes in boundaries that occur in shallow areas of estuaries as a result of the changing tide level. The procedures used to make these time-dependent boundary changes have been extensively revised from previous work. Examples are given of the necessary input parameters and output data obtained from the computer program developed from this simulation model. The examples are taken from a modeling effort currently under way in Jamaica Bay, Long Island, New York. (See also R-709.)

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