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Real Time Flood Event Modeling Program. Ataul Hannan, P.E., CFM Harris County Flood Control District. National Flood Workshop Houston, TX, October 24-26, 2010. Harris County. Elevation Contour. Our Soaked History. Tropical Storm Allison. Floodplain Map. - PowerPoint PPT Presentation
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Ataul Hannan, P.E., CFMHarris County Flood Control District
Ataul Hannan, P.E., CFMHarris County Flood Control District
National Flood Workshop Houston, TX, October 24-26, 2010
National Flood Workshop Houston, TX, October 24-26, 2010
Real Time Flood Event Modeling Program
Real Time Flood Event Modeling Program
Harris CountyHarris County
Elevation ContourElevation Contour
Our Soaked HistoryOur Soaked History
Tropical Storm AllisonTropical Storm Allison
Floodplain MapFloodplain Map
• To create a planning and information To create a planning and information resource for:resource for:– Better understanding the ability of current Better understanding the ability of current
models to reflect observed flooding models to reflect observed flooding conditionsconditions
– Providing real-time and post-event Providing real-time and post-event evaluations of the effectiveness of county evaluations of the effectiveness of county flood management facilitiesflood management facilities
– Supporting existing Flood ALERT efforts Supporting existing Flood ALERT efforts staffed by HCFCD personnelstaffed by HCFCD personnel
• To create a planning and information To create a planning and information resource for:resource for:– Better understanding the ability of current Better understanding the ability of current
models to reflect observed flooding models to reflect observed flooding conditionsconditions
– Providing real-time and post-event Providing real-time and post-event evaluations of the effectiveness of county evaluations of the effectiveness of county flood management facilitiesflood management facilities
– Supporting existing Flood ALERT efforts Supporting existing Flood ALERT efforts staffed by HCFCD personnelstaffed by HCFCD personnel
PurposePurpose
• Web-based intranet toolWeb-based intranet tool• Utilize existing HEC-HMS and HEC-RAS Utilize existing HEC-HMS and HEC-RAS
models developed for Harris Countymodels developed for Harris County• Link programs together to ingest rainfall Link programs together to ingest rainfall
and produce a real-time flood inundation and produce a real-time flood inundation mapmap
• Web-based intranet toolWeb-based intranet tool• Utilize existing HEC-HMS and HEC-RAS Utilize existing HEC-HMS and HEC-RAS
models developed for Harris Countymodels developed for Harris County• Link programs together to ingest rainfall Link programs together to ingest rainfall
and produce a real-time flood inundation and produce a real-time flood inundation mapmap
ObjectivesObjectives
• Buffalo Bayou and White Oak Bayou Watersheds (unsteady flow network)
• Buffalo Bayou and White Oak Bayou Watersheds (unsteady flow network)
Pilot StudyPilot Study
Link 1
External ProcessingNatural
Link
Link 2
Link 3
Timing AspectsTiming Aspects• Rainfall Data = 15 minutes Rainfall Data = 15 minutes
(continuous feed)(continuous feed)• Computation Time = 11 to 14 Computation Time = 11 to 14
minutesminutes• Antecedant Rainfall = 10 daysAntecedant Rainfall = 10 days
FEMPFEMP
Parent ProgramParent Program
Web ToolWeb Tool
Web ToolWeb Tool
Web ToolWeb Tool
Web ToolWeb Tool
Web ToolWeb Tool
Web ToolWeb Tool
TestTest
TestTest
TestTest
TestTest
TestTest
Reduce the risk and rediscover the beautyReduce the risk and rediscover the beauty
QUESTIONS????