Hydraulic models are mathematical models of a fluid flow system such as a water system, a sewer system, or a storm system, and are used to analyze systems’ hydraulic behavior.  Hydraulic models illustrate the effects of changing demand and climactic conditions on water distribution and wastewater collection systems – predicting pressures and identifying bottlenecks – and… Read More →

Water Quality Models  included in this inventory are generally used in the prediction of water pollution using mathematical simulation techniques.  In  most cases, these models simulate runoff or streamflow and calculate the position and fate of water quality parameters. Some models described hereafter are for individual components of the hydrological system such as runoff; others are basin-wide models… Read More →

Hydrology / watershed models listed in this inventory are generally used in the simulation of components of or the entire water cycle. They are primarily used for hydrologic prediction and for understanding hydrologic processes. Specific component processes of the water cycle simulated include (1) Precipitation – condensed atmospheric water falling to earth (2) Evaporation – phase transition of a… Read More →