| Title |
Determination of Mass Transport Coefficients Using Water Quality Model EUTRO5 |
| Abstract |
In assessing water quality conditions of coastal bays in Maryland, two extensive monitoring efforts have been conducted in the summer months of 1983 and 1992, respectively. Data from these two studies were used for the model development and calibration effort presented in this paper. According to data analysis, tidal actions are the primary force responsible for the horizontal mixing and transport of pollutants in the bays. Thus, characterizing such a process and determination of the mass transfer coefficients such as advective flows and dispersion coefficients are important in modeling interactions between water quality constituents. To quantify the mass transport and flushing rates in the bays under summer seasonal conditions, a two-dimensional hydrodynamic model was developed for as part of this modeling effort. Results from the hydrodynamic model were analyzed to assign the advective flows in the eutrophication model. In this study, an ad-hoc approach, which compares a solution of the mass transport equation with the measured salinity distribution, was used to quantify the dispersion coefficients. For mass transport calculation, the current version of the eutrophication module in WASP was configured to simplify the model input file since only salinity calculation is needed. |