Next generation hydraulic modeling for inundation mapping and flood warning in complex urban systems.

摘要

This thesis presents a novel methodology for predicting flooding in complex urban environments. MIKE-FLOOD was used to dynamically model the interactions between overland flow, storm sewer drainage, and tail water by linking a modeled storm sewer system and outfall with a detailed 2D hydrodynamic overland flow model to generate animations displaying the location, depth, and duration of flooding. This research project focused on the Texas Medical Center (TMC), located in the Harris Gully watershed, which endured over 3 billion dollars in flood damage from Tropical Storm Allison in 2001. The system of integrated models was calibrated versus TS Allison and matched commendably with an absolute average error of less than 3 inches. This new approach to predicting flooding in complex urban systems has shown to be easier to set up and more dynamic and powerful than other more conventional approaches to urban inundation mapping and flood prediction.