Surface Water Modeling and Analysis
In order to understand complicated surface-water networks within a basin and conduct different land-planning scenarios that affect the hydrology of the system, computer models need to be constructed to account for all the variables in the water budget such as rainfall and evaporation and the effects of the land surface and soils on the timing and amount of runoff. These rainfall-runoff or watershed models use the comparison of observed runoff against simulated runoff to calibrate and validate the model. Hydraulic models examine channel geometry and channel features to simulate river channel velocity and stage for a given river discharge. These models are often used in flood-hazard studies and habitat analysis.