Update on Hurricane Modeling Scenarios in the Houston Region
Using ADCIRC
Clint Dawson and Jennifer Proft
Casey Dietrich, Nishant Panda, Adnan MuhammadAntonia Sebastian, Phil Bedient
SSPEED meeting Feb 14 2013
• Original landfall Ike
• Shifted Ike
• MightyIke (+15% windspeed )
• SuperIke (+30% windspeed)
• SH146 Levees and Hartman Bridge Gate
Hurricane Ike Scenarios
• Continuous Galerkin model
• OWI winds for Ike
• Coupled to SWAN
• 10 day simulation
• No tidal forcing, no riverine forcing
• Runs in about 5 hours on Lonestar with 2048 cores
ADCIRC Simulations
Bathymetry and Topography of Grid
Bathymetry and Topography of Grid
Bathymetry and Topography of Grid
Ike, Shifted Ike, MightyIke, SuperIke ADCIRC Scenarios
• Selected hurricane path and shifted landfall to 8 locations along coastline
• Modified OWI wind files to shift path of hurricane
• MightyIke: increase windspeed by %15 (high Category 3 at landfall)
• SuperIke: increase windspeed by %30 (Category 4 at landfall)
*Point 7 NEW LANDFALL (NL)
(OL)
Shifted Ike: Original Landfall and New Landfall
Shifted Ike: Original Landfall and New Landfall
Hurricane Ike: Original Landfall (max water surface elevation)
Hurricane Ike: New Landfall (max water surface elevation)
MightyIke (+15%): Original Landfall (max water surface elevation)
MightyIke (+15%): New Landfall (max water surface elevation)
SuperIke (+30%): Original Landfall (max water surface elevation)
SuperIke (+30%): New Landfall (max water surface elevation)
Hydrographsof Hurricane Ike scenarios showing characteristics at various points of concern
Some Additional Scenarios Tested
• Implementation of Oyster Reef
• Ike Dike
• Hartman Bridge Gate (Levee)
• Combined SH146 Levee and Hartman Bridge Levees
SH146 and Hartman Bridge Levees ADCIRC Simulations• Modification of grid to incorporate a Weir Levee along this
route at a 22’ height• Hurricane Ike scenario• MightyIke• Shifted to New Landfall
Location of the SH146 Gate/Hartman Levees
Hurricane Ike: Original Landfall, with Levees
Ike track Storm 089
Storm 136
Hurricane Ike: Original Landfall
Hurricane Ike: New Landfall, with Levees
Hurricane Ike: New Landfall
MightyIke (+15%): Original Landfall, with Levees
MightyIke (+15%): Original Landfall
MightyIke (+15%): New Landfall, with Levees
MightyIke (+15%): New Landfall
• Run SH146/Hartman Levee grid with SuperIke
• Run SH146/Hartman Levee grid on synthetic storm tracks
• Run additional levee scenarios provided by SSPEED
Current and future steps
Ike track Storm 089
Storm 136Storm 076