Remote Sensing / GIS Conference. The Louisiana Proposed Elevation for the Nation Business Plan Components
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1 Remote Sensing / GIS Conference 08 April 2008 The Louisiana Proposed Elevation for the Nation Business Plan Components David Gisclair, Louisiana Oil Spill Coordinators Office, Office of the Governor david.gisclair@la.gov
2 LIDAR Presentation Topics Project Implementation Project Status Katrina MicroGIS-Tour LIDAR Technical Issues LIDAR Management Issues
3 LA LIDAR Project Implementation Seven (7) Phase Project Each Phase approximately one year Deliverables: Vegetation On (Point Cloud or Raw Points) Vegetation Off (Cleaned or Edited/Bare Earth) Breaklines DEM (5-meter grid) 2-foot contours Completion Scheduled for timeframe
4 LA LIDAR Phases
5 LA LIDAR Tasks
6 2007 CLICK Presentation Topics Project Implementation Project Status Katrina MicroGIS-Tour LIDAR Technical Issues LIDAR Management Issues
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10 2007 CLICK Presentation Topics Project Implementation Project Status Katrina MicroGIS-Tour LIDAR Technical Issues LIDAR Management Issues
11 1878 topographic map
12 1919
13 1940 s
14 Source: Campanella. R Time and Place in New Orleans. New Orelans: Pelican Publishing Co.
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16 New Orleans unique topography and levee protection New Orleans East Jefferson/Orleans Lower 9 th /St. Bernard
17 10 meter SPOT Satellite Image: 2 Sep 05 With Water depth overlays LIDAR derived 17 th Street canal break London Ave Canal Breaks IHNC Overwash Old Metarie DeWitt Braud and Rob Cunningham Maximum Flood elevation: +3ft NAVD 88
18 LIDAR derived flood depth overlays
19 SEA LEVEL Subsidence Due to Soil oxidation After Drainage of Wetland Soils
20 LOSCO/FEMA LIDAR Mosaic 3D Perspective Blue areas above sea level Lake Ponchartrain DeWitt Braud and Rob Cunningham Mississippi River
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22 2007 CLICK Presentation Topics Project Implementation Project Status Katrina Tour LIDAR Technical Issues LIDAR Management Issues
23 2007 CLICK Presentation Topics Technical Issues Acquisition (Flight) Specifications Post-Processing (Filtering) Specifications Quality Control / Quality Assurance (QA/QC) Product Deliverables Documentation (Multi-dimensional Spatial Metadata)
24 2007 CLICK Presentation Topics Acquisition (Flight) Specifications Point Spacing Flight Line Length GPS Base Stations System Calibration (Boresite) Overlap Area Number of Returns PDOP
25 2007 CLICK Presentation Topics Post-Processing (Reduction &Filtering) Specifications Terrain Type Ephemeris Information Base Stations Bore-site Calibration Overlap Area Filtering
26 2007 CLICK Presentation Topics Quality Assurance / Quality Control (QA/QC) Tie Line Ground Control Breaklines
27 Tie-line Example
28 2007 CLICK Presentation Topics Product Deliverables Point Cloud Bare Earth Breaklines TIN DEM Contours Formats
29 Product Deliverables DEM Contours Bare Earth (Edited) Point Cloud (Raw) Breaklines (in-progress for distribution) TIN
30 2007 CLICK Presentation Topics Documentation (Multi-dimensional Spatial Metadata) Metadata assembled in a spatial context Define spatial constraints Define multi-temporal constraints
31 Temporal LIDAR Metadata
32 LIDAR Work Flow Metadata
33 2007 CLICK Presentation Topics Management Issues Acquisition Issues Terrain Type Spatial Extent (footprint) Storage & Retrieval Issues Processing Disk Connectivity (massive parallel buses) Distribution Issues Data Structure Data Format Delivery Mechanism Detailed Discussion:
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37 Quarter-Quarter Quad Detail
38 LA GIS DVD Louisiana GIS Digital Map - May 2007 Compilation Contains 460 data sources
39 Remote Sensing / GIS Conference 08 April 2008 Thank You The Louisiana Proposed Elevation for the Nation Business Plan Components Presented by David Gisclair Louisiana Oil Spill Coordinator s Office (LOSCO) Office of the Governor david.gisclair@la.gov
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US Army Corps of Engineers BUILDING STRONG
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