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2010 LiDAR Collection in West Virginia’s Coal Fields

2010 LiDAR Collection in West Virginia’s Coal Fields. WVAGP Meeting December 7, 2010. LiDAR collection specifications. Horizontal postings: 1 meter Vertical accuracy: 15 centimeters Additional derived data products include: ESRI elevation grid Hillshade 2 foot contours used in AML program

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2010 LiDAR Collection in West Virginia’s Coal Fields

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  1. 2010 LiDAR Collection in West Virginia’s Coal Fields WVAGP Meeting December 7, 2010

  2. LiDAR collection specifications • Horizontal postings: 1 meter • Vertical accuracy: 15 centimeters • Additional derived data products include: • ESRI elevation grid • Hillshade • 2 foot contours used in AML program • Intensity image  useful in QCing LiDAR data • ~ 2 TB of data before derived products

  3. Initially Contracted LiDAR AoI Initial AoI encompassed about 5,000,000 acres or about 33% of the State AoI polygons are watershed rather than county-based.

  4. Project Status as of Nov. 29, 2010 A 1,162,728 acres 1,162,728 acres B 1,322,454 acres Highest priority area of the state was about 3,000,00 acres.2,485,182 acres have been completed collected.

  5. Built an ICI (=isolated computing island) • Isolated three VERY high performance computers from central IT C&C duringVERY long compute jobs: • No pushes of server OS upgrades • … followed by the requisite reboots • Isolated from any network dependence for software licenses  network outages • Enough local storage and bandwidth to create more than 8 TB of local storage and a peer-to-peer within-the-room network • UPS on each PC  still working on this.

  6. QCing LiDAR & LiDAR software Approval of software purchase still pending 10 months after start of the project … no end in site!!! • QCing LiDAR deliverables • 2003 Statewide GCPs file • Multiple LiDAR datasets that overlap  difference grid calculation • Trimble R8 GNSS receivers • Outsource via FEMA monies  a go too • Software  64 bit, use multicores • Virtual Geomatics  2 floating seats • Applied Imagery’s Quick Terrain Modeler  1 seat

  7. Two Shorted URISA LiDAR Workshop Topics • Wide area vs. corridor LiDAR • Use of LiDAR intensity data as a substitute for aerial photography • LAS Version 1.1 (… dates back to 1.0)

  8. LiDAR Intensity Image Produced from spring 2009 flight contracted by the Cabell County Assessor’s Office  two whole LiDAR tiles

  9. LiDAR Intensity Image Zoom in from here Produced from spring 2009 flight contracted by the Cabell County Assessor’s Office  two whole LiDAR tiles

  10. LiDAR News Headlines … • The good • WVDEP has some more funding for additional LiDAR data deliverables • The bad • About 50% of our initial AoI remains uncollected  17% of West Virginia • The ugly • WVU’s existing LiDAR hardware and software is supported by Optech for only 1 more year.

  11. The end If we don’t take a shot at partnering more effectively … … future opportunities may be lost

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