Sediment Pollution in the Lake Pontchartrain, LA
Flood release from the Mississippi River to the Lake Pontchartrain, LA, is operated once in few years to reduce flood threat to the New Orleans City. A large amount of sediments in the Mississippi River is brought into the Lake with the flood water downgrading the water quality. It takes many days for the sediment to deposit and to be transported out of the Lake. CCHE2D-SED has been applied to simulate the sediment transport process.
Comparisons of the CCHE2D simulated sediment transport process in the Lake Pontchartrain, LA, after the 1997 flood release from the Mississippi River are shown. The simulated distributions of suspended sediment are very close to those observed with satellite imagery.