2004 UC Proceedings Abstract
Converting a NEXRAD Map to a Floodplain Map Track: Water Resources Author(s): Oscar Robayo, Tim Whiteaker Using ArcGIS 9 ArcObjects and the new ModelBuilder environment, a methodology for converting a NEXRAD map to a floodplain map has been developed. The methodology integrates HEC-HMS and HEC-RAS modeling systems through flow change points in the stream network georeferenced in the Arc Hydro data model for water resources. The coupling of these external modeling systems via a common geographic framework enables dynamic and seamless end-to-end simulations for real time and planning operations. Two GIS-based alternative approaches have been explored for the coupling framework: the command button and the ModelBuilder construct. The integrating approach has been implemented in the San Antonio River basin, Texas, as part of a regional watershed modeling system being developed by the San Antonio River Authority, the City of San Antonio, and Bexar County. In particular, the Salado and Rosillo creeks were used to test a prototype version of the modeling framework. Oscar Robayo University of Texas at Austin-CRWR 3471 Lake Austin Blvd Apt B Austin , TX 78703 US Phone: 5124741655 Fax: 5124710072 E-mail: oskatrin@mail.utexas.edu Tim Whiteaker University of Texas at Austin 10100 Burnet Rd. Bldg 119 Austin , TX 78758 US Phone: 5124710073 Fax: 5124710072 E-mail: tlw9539@hotmail.com |
|||||
