Model Development and Application

A model is an essential tool to gain overall understanding of a complex system. It enables to predict the effects of critical decisions. Advances in computer technology, in the technology of communication and mathematical modelling of hydraulic and hydrological cycles have improved the potential to mitigate the damages of floods and inadequate drainage. Hydrologic or hydraulic models, based on a mathematical formulation of the flow of water under certain topography and boundary conditions, have proven to be effective tools in land and water development and management projects. The output of such models is in the form of water levels and discharges at various locations in space and time. These results can be used by various interest groups. It is quite natural that a designer or a planner wishes to see some of the changes of the design and their possible effects after rerunning the model.