1. Minnesota Elevation Mapping Project Public Meeting Presentation Willmar, Marshall, Worthington, Mankato September 24 th, 2009 3/6/2014Minnesota Elevation Mapping Project

2. Agenda for todays meeting Introductions and Overview (10 minutes) An Introduction to LiDAR (15 minutes) The Southeast Minnesota Mapping Initiative The Minnesota Elevation Project (15 minutes) Goals Timelines Partnering Opportunities Q & A (20 minutes) Minnesota Elevation Mapping Project

3. Steering Committee Tim Loesch – MnDNR Project oversight and technical guidance Chris Cialek – MnGEO State agency coordination and contracting Pete Jenkins – MnDOT Validation point coordination and technical guidance Ron Wencl – USGS Coordination with Federal activities 3/6/2014Minnesota Elevation Mapping Project

4. 3/6/2014Minnesota Elevation Mapping Project What is LiDAR? Light Detection and Ranging Laser Rangefinder Inertial Measurement Unit GPS On-Board Computer Produces accurate and detailed land elevation data Hydrologic analysis Construction Pre-design 1 – 2 Foot contours Slide courtesy of USGS Source: Aero-Metric, Inc.

5. Minnesota Elevation Mapping Project Advantages Large areas can be gathered economically Data has a wide variety of applications Can penetrate some level of ground-cover High level of accuracy and precision <1 meter horizontal <15 cm vertical 3 cm vertical seperation 3/6/2014Minnesota Elevation Mapping Project

6. Limitations Limited window of opportunity to collect Vegetation and snow free periods in the spring and fall Flooding is bad too! Cannot penetrate Water Heavy canopy cover Rain, Snow, Clouds Lots of data volume New technology and data Minnesota Elevation Mapping Project

7. The typical LiDAR Project involves Definition of Project Requirements Accuracy, Extent, Projection, Delivery Formats Mission planning & execution Data Processing Product Generation Data Delivery/distribution Validation and Acceptance Minnesota Elevation Mapping Project

8. 3/6/2014Minnesota Elevation Mapping Project Saturday August 18 th – 2007 Tropical Storm Erin 24-hour rain totals 15.10 Hokah 17 – Caledonia (unofficial)

9. 3/6/2014Minnesota Elevation Mapping Project Towns Evacuated Stockton, Houston, Elba, Minnesota City and portions of Winona Whitewater State Park 4,200 Homes Damaged 7 Deaths $67 Million Damage

10. 3/6/2014Minnesota Elevation Mapping Project 7 Counties Declared Disaster Areas Steele, Dodge, Olmsted, Wabasha, Winona, Fillmore, Houston Special Session Legislation appropriated monies for flood relief and mitigation

11. 3/6/2014Minnesota Elevation Mapping Project Great Example of Cooperation and Partnering $625K – State of MN (flood recovery funds) DNR – Project Management and oversight DOT – Validation and project support $75K – USGS Cooperative Agreement $122K – Mower and Freeborn Counties Shell Rock River Watershed District Turtle Creek Watershed District Cedar River Watershed District County Governments Surveyors GIS Technicians

12. 3/6/2014Minnesota Elevation Mapping Project Objectives To support flood mitigation and prevention efforts Produce a Highly Accurate Elevation Data set FEMA specifications Publicly available data – no restrictions

13. 3/6/2014Minnesota Elevation Mapping Project Deliverables Classified LAS Files Vegetation, Buildings, Bare Earth, Bridges Edge of Water Break lines 2 Contours – Break line Enforced 1 meter DEM units in meters – Break line Enforced Projection UTM Zone 15 projection, NAD83 Datum Vertical Datum NVD88

14. Minnesota Elevation Mapping Project 3/6/2014Minnesota Elevation Mapping Project

15. Breaklines 3/6/2014Minnesota Elevation Mapping Project

16. GEOSPATIAL COORDINATION TECHNICAL INFRASTRUCTURE TECHNICAL SUPPORT Coordination, Outreach, Communication Data Coordination Technology Coordination Data Services Web Services Training Guidance Consulting & Project Support New Geographic Information Office Dr. David Arbeit - Minnesotas Geographic Information Officer www.gis.state.mn.us/committee/MSDI

17. Minnesota Elevation Mapping Project Minnesota Statewide Projects Digital Elevation Committee Governors Council on Geographic Information Working to achieve publicly available, high accuracy statewide elevation data Federal, State and County representatives Limited funding Ensure data compatibility across collects via standards Provided guidance and technical expertise 3/6/2014Minnesota Elevation Mapping Project

18. Minnesota Clean Water Legacy Act Citizens of the state have invested in water quality High resolution elevation data can be used for all future water quality projects Legislative leadership from: Representative Rick Hanson (39A Dakota Co.) Senator Ellen Anderson (66 St. Paul) 3/6/2014Minnesota Elevation Mapping Project

19. Project Scope and Costs 40,000 square miles to complete state $8.5 million Supported Funding $2.8 Million FY10 $2.8 Million FY11 Return to Legislature for additional $2.9 million if necessary 3/6/2014Minnesota Elevation Mapping Project

20. The Schedule July Form steering committee September Public Meetings October Design RFP November Post RFP December Award contract(s) Spring 2010 First acquisition flight Fall 2010 Data delivery 3/6/2014Minnesota Elevation Mapping Project

21. Three Phases SOUTHWEST – including Minnesota River Basin CENTRAL LAKES - Mississippi River Basin ARROWHEAD – Lake Superior Basin 3/6/2014Minnesota Elevation Mapping Project

22. Anticipated Project Deliverables Point data – LiDAR LAS files Edge of water break lines 2 Contours – Break line Enforced 1 meter DEM units in meters – break line enforced Projection and Datum UTM Zone 15 projection, NAD83 datum Vertical Datum NAVD88 NO concurrent ortho-imagery 3/6/2014Minnesota Elevation Mapping Project

23. 3/6/2014Minnesota Elevation Mapping Project Data will be publicly available DNR and MnGEO Actively exploring web delivery options Web Services –Print a map with an Air Photo backdrop with 2 contours? Clip and Ship products USGS National Elevation Dataset (NED - http://ned.usgs.gov/ ) http://ned.usgs.gov/ Raster DEMs Center for LiDAR Coordination and Knowledge (CLICK) LAS Point Cloud Data (http://lidar.cr.usgs.gov/)http://lidar.cr.usgs.gov/

24. SE Mn Users Group 3/6/2014Minnesota Elevation Mapping Project LiDAR ViewerLiDAR Viewer - http://iwi.houstoneng.com/iwi_lidar/iwi.html

25. 3/6/2014Minnesota Elevation Mapping Project Data will be publicly available DNR and MnGEO Actively exploring web delivery options Web Services –Print a map with an Air Photo backdrop with 2 contours? Clip and Ship products USGS National Elevation Dataset (NED - http://ned.usgs.gov/ ) http://ned.usgs.gov/ Raster DEMs Center for LiDAR Coordination and Knowledge (CLICK) LAS Point Cloud Data (http://lidar.cr.usgs.gov/)http://lidar.cr.usgs.gov/

26. Minnesota Elevation Mapping Project Partnering Opportunities County and local government County GIS Coordinator Point of Contact for Data Delivery Data conversion and distribution within the county Survey/Engineering point of contact Validation point collection Sharing of existing high-resolution data Federal Cost sharing opportunities to stretch $s 3/6/2014Minnesota Elevation Mapping Project

28. 3/6/2014Minnesota Elevation Mapping Project Vertical Accuracy Validation Surveyed points with x,y,z 100 Points per County 20 points in each of 5 cover categories Help from county surveyors and other staff Why do we need this? Data Validation – we got what we bought Data Integrity – we want people to trust the data

29. Minnesota Elevation Mapping Project 3/6/2014Minnesota Elevation Mapping Project SE Minnesota 1,092 Surveyed Validation Points!

30. SE Minnesota LiDAR Update 3/6/2014Minnesota Elevation Mapping Project Winona County Validation Report RMSE across cover Types

31. Minnesota Elevation Mapping Project 3/6/2014Minnesota Elevation Mapping Project Winona County Validation Report

32. Minnesota Elevation Mapping Project Thank you for attending Q&A 3/6/2014Minnesota Elevation Mapping Project