HR: 1330h
AN: H12B-0989    [PDF]
TI: Discriminant Flash-Flood Forecasting in an Urban Environment
AU: * Yates, D
EM: yates@Ucar.edu
AF: National Center for Atmospheric Research, 3450 Mitchell Ln., Boulder, CO 80301
AU: Sharif, H
EM: sharif@ucar.edu
AF: National Center for Atmospheric Research, 3450 Mitchell Ln., Boulder, CO 80301
AU: Rindahl, B
EM: rindahl@lrcwe.com
AF: Leonard Rice Engineering, 2000 Clay Street, Ste. 300, Denver, CO 80211
AB: This study demonstrates the application of high-resolution weather radar data, quantitative precipitation nowcasting, combined with simple hydrologic modeling to forecast flood potential for multiple, discriminate urban watersheds. The approach defines meta-data models based on the Extensive Markup Language (XML) to disseminate severe storm attributes (their size, orientation, history, and forecast position) and 5-minute, 2-hour rainfall accumulations for the watersheds to an Automated Location Evaluation in Real Time (ALERT) urban flood warning system- the Urban Drainage and Flood Control District (UDFCD), in Denver Colorado, USA. In addition, a simple graphical display system based on the World Wide Web Consortium's (W3C) Scalable Vector Graphics (SVG) format, requires only the simple exchange of small XML data files from the Nowcasting server to the UDFCD client for monitoring storm position and streamflow by the UDFCD in realtime. Example of severe storms that produce local flooding in the UDFCD domain will be shown.
DE: 1719 Hydrology
DE: 1821 Floods
DE: 1894 Instruments and techniques
SC: Hydrology [H]
MN: 2003 Fall Meeting