USACE Post-Hurricane Monitoring requirements Post-storm assessments of Corps Projects Damage...
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USACE Post-Hurricane Monitoring requirements • Post-storm assessments of Corps Projects • Damage estimates (economic & engineering) • Extreme event data – forensic storm analysis – High Water Marks and storm surge hydrograph – Wave observations, including over land – Used for model development/evaluation • Most information is time-sensitive, need it quickly – Presents funding and other agency/contracting challenge
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Transcript of USACE Post-Hurricane Monitoring requirements Post-storm assessments of Corps Projects Damage...
USACE Post-Hurricane Monitoringrequirements
• Post-storm assessments of Corps Projects• Damage estimates (economic & engineering)• Extreme event data – forensic storm analysis
– High Water Marks and storm surge hydrograph– Wave observations, including over land– Used for model development/evaluation
• Most information is time-sensitive, need it quickly– Presents funding and other agency/contracting
challenge
Email Questions • What works now with respect to interagency post-
storm assessment activities? • Do you know what the other agencies are doing?
Are you aware of duplication of efforts? • What can be improved? How can a workgroup a
with high-level representation help our folks in the field?
• Summarize your 2008 post-storm activities (Ike, Gustav, etc).
• Describe 2009 plans. • Are you interested in the plans of the other
agencies?
Summary Comments Received• Lots of data being collected – need shared data dump: federal, state, local• Need maximum wind speed map along track (immediately afterward) –
based on observations and radars, NWS, TV, airports, etc• FEMA/Corps coordination could be improved• Also some discussion is warranted on the optimal time to do post-storm
beach surveys for various purposes: FEMA requires surveys to assess how much help a beach should be awarded based on sand loss. If the survey is done too soon, before natural recovery, the assessment may overestimate sand loss.
• If post-storm LIDAR happens too late, then the storm effects and natural recovery can no longer be separated from everyday sediment processes.
• It would help to have:– a measure of the beach width before a storm; – a measure of the berm width after the storm; – location of vertical erosion damage indicators (0.5, 2.0, 4.0 ft) with respect to
structures– Associated structure damage.
2008 Activities (incomplete)
• Jacksonville District assisted FEMA in post-storm beach assessments around Florida and into North Carolina during 2008.
• LIDAR surveys – coordinated with USGS, NOAA, NAVY, NASA
• Street-level real-time ADCIRC forecasts for the New Orleans district during Gustav – Intense, tiring, technically challenging, useful
Jennifer M. WozencraftDirector
Joint Airborne Lidar BathymetryTechnical Center of Expertise
7225 Stennis Airport Road, Suite 100Kiln, MS 39556
[email protected] (phone)
228-806-6044 (cell)
7 April 2009
USACE National Coastal & Post-Storm Mapping
Program
USACE National Coastal & Post-Storm Mapping
Program
Activities/Flights coordinated with USGS
USACE National Coastal Mapping Program
USACE National Coastal Mapping ProgramMapping summary
FY10
FY11
10,000 km mapped to date: 2004 Post-hurricane 2004 2005 Post-hurricane 2005 2006-2008
Future surveys
FY09
Available data products• ASCII xyz• RGB mosaics• Zero contour• 1-m bathy/topo DEMs• LAS format topo• 1-m bathy/topo bare
earth DEMs• Hyperspectral mosaics• Bottom reflectance• Basic landcover
classification
USACE National Coastal Mapping Program
USACE National Coastal Mapping ProgramPost-hurricane survey
requirements 2008Post- Ike
Post- Gustav
USACE National Coastal Mapping Program
USACE National Coastal Mapping ProgramPost-hurricane survey analysis
05/06 Texas GLO color infrared aerial photography
Rollover P
ass
2006 – High Water Line2008 – Storm Impact Lineoverwash
Ike overwashsand deposit extent
County
County
Gilchrist
Shorelines
87
Galveston
Galveston
Rollover Pass 2006 Pre - Ike Conditions
09/15/08 NOAA-NGS color photography
Rollover P
ass
Geotube Exposed by storm
County
County
Gilchrist
87
Galveston
Galveston
Rollover Pass2008 Post - Ike Conditions
2006 (Pre-Ike Texas GLO) – 2008 (Post-Ike USGS)2006 (Pre-Ike Texas GLO) – 2008 (Post-Ike USGS)LIDAR Difference MapLIDAR Difference Map
2006 – High Water Line2008 – Storm Impact Lineoverwash
Ike overwashsand deposit extent
Gilchrist
Shorelines
Geotube Exposed by storm
Elevation Change (m)
Erosion
Accretion
No Change
Rollover P
ass
USACE National Coastal Mapping Program
USACE National Coastal Mapping ProgramFY09/FY10/ARRA
2004Post-hurricane 20042005Post-hurricane 20052006-2008Post-hurricane 20082009-2010
2009 Plans (incomplete)• Fly the coast, send out teams to inspect the projects
before and after the storms.• etc.....
Concerns• Funding
– Affects our level of involvement– Can OFCM still accumulate funds for post-storm use?
• Rapid access to other agency/contractor data is important to our post-storm efforts/reports/preparations
Post-meeting plans
• Build internal/external email lists – HQ, district, laboratory POCs– Agency contacts
• Convey out meeting results• Serve as POC from USACE to other agencies
during the season, as needed• Keep engaged
