ArcGIS 10.1 Lidar Workshop Lidar in ArcGIS 10.1

Transcription

1 ArcGIS 10.1 Lidar Workshop Lidar in ArcGIS 10.1 Introduction by Steve Snow Esri Industry Specialist 3D mapping and Lidar

2 Introduction to Lidar and ArcGIS Introduction to Enterprise GIS Challenges and user expectations Review existing lidar support ArcGIS 10.1 lidar solutions GIS Lidar applications Future possibilities Q&A

3 Lidar Light Detection And Ranging Optical remote sensing technology that can measure the distance to, or other properties of a target by illuminating the target with light LAS Binary file format for Lidar storage developed by the ASPRS in conjunction with private and government stakeholders Lidar data (LAS) is increasingly available and affordable, and many users want to leverage this data in their GIS

4 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

5 Types of LiDAR Airborne - Captured from aircraft Terrestrial and Mobile - Captured from the surface

6 LiDAR Technology

7 Lidar Data Very rich, but contains a lot of data not required for many applications First Return 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 Last Return

9 Lidar Data Very rich, but contains a lot of data not required for many applications First Return DSM SecondReturn ThirdReturn DTM Last Return

10 Lidar Data Very rich, but contains a lot of data not required for many applications And is missing some data that is critical to some applications First Return DSM SecondReturn ThirdReturn Breakline DTM Last Return

11 Lidar Industry Usage Just to name a few

12 Lidar Users Users - States, counties, cities, government agencies - Military - Forestry, water resources, urban management - More User Roles - Data managers - Interested in managing large collections of LAS files - Data consumers - Interested in tools to analyze LAS

13 Key Lidar Functionality Surface analysis - First-return - Bare-earth Feature extraction - Digitizing - Point classification Background information - Measuring - Data validation Sharing - Serving - Zip-and-ship

14 Challenges of Working with Lidar Data Huge Volumes Multiple Sources Multiple Projections Varying Accuracy Multiple Representations How to manage? How to analyze? How to access? Use of elevation data has been a challenge

15 Traditional Workflows Project based - Collection Project based - Analysis For specific project

16 Traditional Workflows Project based - Collection Project based - Analysis For specific project - Archive data

17 Traditional Workflows Project based - Collection Project based - Analysis For specific project - Archive data - Move on to next project

18 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

19 User Expectations End Users and Decision Makers Lidar lives beyond project Information has to be: - Simple - Accessible - Timely Application and data integration is critical

20 User Expectations: Simple End Users and Decision Makers Single interface Zoom/Roam/Search Visualize data Perform analysis Discover relevant information

21 User Expectations: Accessible End Users and Decision Makers Accessible with other data Imagery Base Maps Operational Layers Internally within your organizations and online

22 User Expectations: Timely End Users and Decision Makers ArcGIS enables timeliness by Using server based on-the-fly processing Automated analysis and geoprocessing 2D and 3D visualization

23 The Lidar Workflow Manage Collect and Integrate Visualize and Analyze Share

24 Overview of LAS Support in ArcGIS 10.1 File01.las File02.las File99.las Multiple Files / Folders Tiled / Overlapping Extents (Location / Time) P R O J E C T S O R G A N I Z E Analyze / Update Data LAS Dataset 1 LAS Dataset 2 LAS Dataset Manage Serve / Share Mosaic Dataset

25 Mosaic Dataset Optimum Model for Image Data Management Manage Multiple projects as single dataset Metadata Visualize Share On the fly representation as surface or point cloud View as 2D or 3D As a single dataset As Image Service WMS/WCS

26 Sharing Lidar Data Share via ArcGIS Server An image service - Access - Discover - Download A map service

27 Sharing Lidar Demo - Desktop editing (ASPRS classification) - Sharing through Imagery services (Desktop, Browser, ArcGIS Online)

28 Expanding Analysis Capabilities Lidar API Raster API Detect planar surfaces Create 3D polygons

29 GIS LiDAR Data Applications

30 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

31 Natural Resource Management - Forestry See the forest AND the trees

32 Slope Map

33 Canopy Height Map

34 Canopy Cover & Flow Direction Map

35 Energy Transmission Lines True 3D Data NADIR or Down Looking Perspective

36 Energy Transmission Lines View, measure or analyze from any location Profile Perspective

37 Energy Transmission Lines Great detail Highly accurate Data courtesy of Optech, Inc.

38 Emergency management North Carolina Geospatial & Technology Information Management Office (GTM) Tsunami Indundation modeling-oregon State (DOGAMI)

39 Statewide Building Footprints 100% Statewide Coverage 5.5 Million Building Footprints Collected and Quality Reviewed

40 Supporting Hurricane Preparations

41 Building Footprints and Finished Floor Elevations 100YR Flood Elevation = 13 ft. FFE = 5.2 ft.

42 Damage assesments

43 Emergency management Potential tsunami inundation: Bandon, Oregon Data courtesy of DOGAMI

44 Lidar Data dissemination View and download your source data for further uses

45 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.... And Software Empowering the GIS Professional And the Broader Community

46 Documentation New LAS dataset book in the Help Available on the 3D ArcGIS resource center -

47 2012 Esri Lidar events Event Date Location Pacific GIS Conference March 5-7, 2012 Honolulu, HI ASPRS 2012 March 19-21, 2012 Sacramento, CA SPAR International April 15-18, 2012 Houston, TX Esri UC July 23-27, 2012 San Diego, CA ISPRS Aug 25-Sep 1, 2012 GIS Pro 2012 Sept 30-Oct 4, 2012 Melbourne, Australia Portland, Oregon SPAR Europe Nov 12-14, 2012 The Hague, Netherlands ELMF Dec 4-5, 2012 Salzburg, Austria

48 Esri UC 3D Mapping and Lidar User Group Sunday July 22nd, San Diego, CA, USA Location San Diego Convention Center Room 7 A/B Key speakers Various Esri speakers Commercial speakers ASPRS USGS DOGAMI US Airforce US Special Forces (USACE and US NAVO) JALBLTX

49 ArcGIS Online community Search groups Lidar

50 Questions Thank you! Steve Snow Esri Industry Specialist x