GIS Applications for Tornado Damage Visualization

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Presented to the Hamilton County GIS User Group meeting on 01.26.2010. Overview of ArcGIS Server Flex applications built to assist in damage assessment and visualization after an EF-4 tornado in …

Presented to the Hamilton County GIS User Group meeting on 01.26.2010. Overview of ArcGIS Server Flex applications built to assist in damage assessment and visualization after an EF-4 tornado in Murfreesboro, Tennessee.

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  • 1. Tornado Damage Assessment & Visualization
    Good Friday Tornado – Murfreesboro/Rutherford County, TN
    David Speight, True North Geographic Technologies
  • 2. FINAL SUMMARY (TIMES BASED ON RADAR)...STRENGTH...EF-4MAXIMUM WINDS...170 MPHPATH LENGTH...23.25 MILESWIDTH...MAXIMUM 750 YARDSTOUCHDOWN TIME...1219 PMTORNADO END TIME...1255 PM
  • 3.
  • 4.
  • 5. Airport
    EOC
    MTSU
    911
    Special Ops
    Courthouse (OIT)
    ArcGIS Server
    ArcSDE
    Image Server
    Initial Estimated Damage Path
  • 6. GIS Response Timeline
    Friday Afternoon (April 10, 2009)
    Prep for damage assessment data collection during the initial response phase
    Friday Evening – Sunday Evening
    Perform data entry for initial damage reports
    Create mapping tools for the EOC
    Sunday Morning
    Imagery for damage path acquired
    Monday – Friday
    Continue data entry/scrubbing for damage reports
    Monday Afternoon
    Receive new imagery; publish using AGS/Image Server
    Locate unassessed damage using new imagery
    Thursday Afternoon
    Roll out public information website
  • 7. Damage Assessment Site
    Emergency Operations Center
    ArcGIS Server / Flex Viewer
  • 8. Damage Assessment Site
    Provide access to landbase & cadastral
    Monitor progress of damage assessment
  • 9. Damage Assessment Site
    Provide access to landbase & cadastral
    Monitor progress of damage assessment
  • 10. Damage Assessment Site
    Define damage path more precisely
    Provide more accurate information to media
  • 11. Public Information Site
    Tools for public/media access
    Damage visualization
  • 12. Public Information Site
    Used Flickr for geotagging photos
  • 13. Public Information Site
    Imagery tells the story
  • 14. Public Information Site
    Property damage general Info
    Minimize public presence in damage area
  • 15. What Worked
    Data collection prep
    GIS manager & techs @ Courthouse
    GIS public safety tech @ EOC
    Editing via remote desktop to Courthouse
    ArcSDE database for multi-editor feature classes
    ArcGIS Server/Image Server
    Able to construct map services & reuse for multiple applications
    Able to use existing map services from other agencies
    Able to quickly turn around new imagery & incorporate into web application
    Flex viewer
    Quick, easy access to essential data
    Provided EMA staff with up-to-the-minute progress info on damage estimates
    Flex API
    Stood up public facing web site within a week of event
    Powerful visualization tools
  • 16. What Can Be Improved (technically) ?
    Data collection prep
    Emergency response data model
    Maps – editing/publishing
    Web dashboards
    Have a plan for document/photo management
    Data collection
    Eliminate paper & manual data entry
    Multiple mobile options
    Use cameras with geotagging capability
    Data integration
    Prepare existing systems to share data easily
    GeoRSS, XML, WMS, KML, web services