| Flood Warning Systems are not a new commodity to the hydrologic world, however, the advancements in GIS data, hydrologic modeling tools, NEXRAD, and internet capabilities have allowed for improvements in flood prediction. This study applied techniques originally used in FAS-1 for a watershed in Houston, Texas to a large, highly sloped watershed in Austin, Texas where aquifer recharge is prominent. GIS was helpful in the framework of the model producing valuable hydrologic parameters and delineating the watershed. HEC-1 was used to create a model as the basis for a real-time radar based Flood Alert System. Advantages to the HEC-1 model are its ability to run in real time and the addition of gage-adjusted radar to the input. The HEC-1 model was tested and calibrated to various historical storms and is ready for real-time application. Together, these entities provide a strong foundation for the Flood Alert System in Austin, Texas. |
