Abstract
A two‐dimensional (2‐D) vertically‐averaged finite element model suite was adapted to investigate the hydrodynamics, water quality (WQ), and sediment‐toxicant transport in San Diego Bay. The hydrodynamic model was calibrated and verified with two sets of observed data. Model predictions were also compared with the results from a previous study wherein a one‐dimensional (1‐D) finite difference approach was used. The 2‐D model predictions of water surface elevations and velocities at specified locations in the bay were generally superior. The results of simulation of WQ constituents (temperature, nitrate‐nitrogen, algae, and dissolved oxygen) using the 2‐D WQ model compared well with the results from the 1‐D WQ model, both in the general trend as well as the specific distribution of constituent concentrations. Investigations were also carried out to determine the spatial and temporal distribution of sediments and a hypothetical sediment‐borne toxicant in the bay. Results were found to be in general agreement with conclusions drawn from the hydrodynamic study.
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