Hawaii Pacific GIS Conference 2012: LiDAR for Intrastructure and Terrian Mapping - Maximizing the Benefits of LiDAR Data in GIS
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This document discusses how GIS organizations can maximize the benefits of LiDAR data. It describes what LiDAR is, different LiDAR systems, and challenges of working with large LiDAR datasets. Traditionally, LiDAR data was managed on a project-by-project basis, but an enterprise GIS workflow allows data to be accessible for multiple applications and users. Example applications shown include forestry, natural resource management, energy, and emergency management. The presentation concludes that cloud computing, web services, and open data sharing are enabling easier and more collaborative use of LiDAR data within GIS.
Hawaii Pacific GIS Conference 2012: LiDAR for Intrastructure and Terrian Mapping - Maximizing the Benefits of LiDAR Data in GIS
- 1. Maximizing the Benefits of LiDAR with GIS Presented by Steve Snow Esri Industry Specialist
- 2. Agenda • What is LiDAR • Different types of LiDAR systems • Challenges to working with LiDAR data • How GIS organizations work with LiDAR • Example GIS-LiDAR applications • A New Vision Is Emerging • Summary/Questions
- 3. LiDAR – Light Detection And Ranging Optical remote sensing technology that measures the distance from the sensor to a target LAS: Binary file format for LiDAR data storage developed by the ASPRS in conjunction with private and government stakeholders
- 4. Types of LiDAR • Airborne - Captured from aircraft • Terrestrial and Mobile - Captured from the surface
- 6. LiDAR Data Very rich, but contains a lot of data not required for many applications First Return SecondReturn ThirdReturn Last Return
- 7. LiDAR Data Very rich, but contains a lot of data not required for many applications First Return DSM SecondReturn ThirdReturn Last Return
- 8. LiDAR Data Very rich, but contains a lot of data not required for many applications First Return DSM SecondReturn ThirdReturn DTM Last Return
- 9. Challenges of Working with LiDAR Data • Huge data volumes • Storing & serving • Integration with other spatial data • How to manage? • How to access? • How to analyze?
- 10. Traditional Workflows • Project based: - Collection – Project based - Analysis – For specific project
- 11. Traditional Workflows • Project based: - Collection – Project based - Analysis – For specific project - Archive data
- 12. Traditional Workflows • Project based: - Collection – Project based - Analysis – For specific project - Archive data - Move on to next project
- 13. Traditional Workflows • Project based: - Collection – Project based - Analysis – For specific project - Archive data - Move on to next project • Data not accessible to - Multiple applications ? - Multiple users • Value is lost
- 14. The Enterprise GIS Lidar Workflow Manage Collect and Integrate Visualize and Analyze Share
- 15. LAS Dataset – Visualize and Analyze Points
- 16. LAS Dataset – Visualize and Analyze Surface
- 17. LAS Dataset – Manage Interactive Editing-manual or batch reclassification of raw LAS files
- 18. LAS Dataset – Visualize and Analyze Data courtesy Merrick & Co.
- 19. Mosaic Dataset Optimum Model for Image Data Management • Manage • Multiple projects as single dataset • Metadata • Visualize • On the fly representation as surface or point cloud • View as 2D or 3D • Share • As a single dataset • As Image Service • WMS/WCS
- 20. Sharing LiDAR data • Share via ArcGIS Server • An Image Service - Access - Discover - Download • A map service
- 21. GIS LiDAR Data Applications
- 22. Forestry Tasmania Lidar provided quality improvements and cost savings ArcGIS Image Extension provided the tool to access large amounts of lidar data seamlessly and quickly. Lidar was integrated into harvest planning, inventory assessment and planning analysis Lidar is an excellent means for characterizing the forest resource as a basis for forest management Cost saving found areas such as: haul road location timber inventory Result of decrease in measurement and planning effort Estimated recoup acquisition and processing costs in 5 years
- 23. Natural Resource Management - Forestry See the forest AND the trees
- 24. Slope Map
- 26. Canopy Cover & Flow Direction Map
- 27. Energy – Transmission Lines • True 3D Data NADIR or Down Looking Perspective
- 28. Energy – Transmission Lines • View, measure or analyze from any location Profile Perspective
- 29. Energy – Transmission Lines Data courtesy of Optech, Inc. • Great detail • Highly accurate
- 30. Emergency management • North Carolina Geospatial & Technology Information Management Office (GTM) • Tsunami Indundation modeling-Oregon State (DOGAMI)
- 31. Statewide Building Footprints • 100% Statewide Coverage • 5.5 Million Building Footprints Collected and Quality Reviewed
- 33. Building Footprints and Finished Floor Elevations 100YR Flood Elevation = 13 ft. FFE = 5.2 ft.
- 35. Emergency management Potential tsunami inundation: Bandon, Oregon Data courtesy of DOGAMI
- 36. Lidar Data dissemination View and download your source data for further uses http://www.oregongeology.org/dogamilidarviewer/
- 37. A New Vision Is Emerging for LiDAR/Imagery with GIS Easier, Accessible and Collaborative Enabled By • Cloud Architecture • Web Services • Information Integration • Crowd Sourcing • Open Data Sharing • On the fly processing • One environment • 2D/3D visualization • Spatial Data Infrastructure Empowering the GIS Professional . . . . . . And the Broader Community . . . . And Software
- 38. Learn more Workshops following conference Two Free 1 day hands on workshops • Lidar at ArcGIS 10.1 - Thursday March 8, 8:00AM – 4:30PM - or - Friday March 9, 8:00AM – 4:30PM • Seating is limited. Please contact Connie Clinton at 808-947-0993 x15635 / cclinton@esri.com • Location: Esri training room 1357 Kapiolani Blvd Suite 1100, Honolulu, HI 96816
- 39. Questions Thank you! Steve Snow Ron Behrendt Esri Industry Specialist behron@centurytel.net Twitter @lidar_geek 1.406.250.1550 ssnow@esri.com 1-909-793-2853 x 3769 http://www.esri.com/industries/map-chart-dataproduction/lidar/