Coupling Hydrological and Hydrodynamic Models for Assessing the Impact of Water Pollution on Lake Evaporation

The present study evaluated the impact of hydrological variability on hydrodynamics an urban lake in Brazil, considering water quality dynamics and its effects evaporation. Storm Water Management Model (SWMM) was applied to basin, two-dimensional model CE-QUAL-W2 used simulate two models were coupled carry out integrated basin-lake modeling. Then, applied: a transient complete mixing empirical based wind speed. Time series total phosphorus (TP) generated, correlations between TP variables proposed. Modeled measured biochemical oxygen demand (BOD) correlated with monthly Class A pan coefficients (K) adjusted for lake. K-values negatively modeled by (R2 = 0.76) 0.52), as well BOD measurements 0.85). This indicates that pollution attenuates evaporation rates. Scenarios level reduction due also analyzed. results from this are important improve management lakes reservoirs including balance.