Wisconsins Great Lakes Shoreline Viewer
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Wisconsins Great Lakes Shoreline Viewer

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Low level oblique 1976 and 2007 aerial photos covering the Lake Michigan and Lake Superior shorelines in Wisconsin were used for qualitative mapping of conditions along the shoreline in a GIS......

Low level oblique 1976 and 2007 aerial photos covering the Lake Michigan and Lake Superior shorelines in Wisconsin were used for qualitative mapping of conditions along the shoreline in a GIS database to support comparative analysis between the two time periods. Three components of the shoreline were captured for each time period: (1) beach/nearshore zone; (2) backshore zone; and (3) structure type (points), for non-linear or perpendicular structures (e.g. groins, jetties). This presentation will highlight some of the changes that did take place on the shoreline between 1976 and 2007. We will also present the processes and issues associated with capturing shoreline features using oblique photos within a GIS environment as well as issues related to storing, viewing and distributing these datasets. Finally, we will describe the applications and tools that are being developed to make the datasets and related information available to the public through a web-based mapping portal and its planned integration into the Wisconsin Coastal Atlas.

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  • 1. 1
    Identifying and Representing Wisconsin’s Great Lakes Shoreline
    Jeff Stone
    Project Manager
    Association of State Floodplain Managers
    David M. Mickelson
    Principal Investigator
    Geo-Professional Consultants, LLC
    WLIA Conference
    February 17, 2011
  • 2. 2
    ASFPM Mission
    Mitigate the losses, costs, and human suffering caused by flooding.
    Protect the natural and beneficial functions of floodplains.
  • 3. 3
  • 4. Identifying and Representing Wisconsin’s Great Lakes Shoreline
    Overview
    1976 oblique photos
    Comprehensive shore/bluff erosion project*
    2007/08 color oblique images
    Qualitative classification
    Changes between time periods
    Public Access to photos/data
    4
    *Mickelson, D.M., Acomb, L., Brouwer, N., Edil, T.B., Fricke, C., Haas, B., Hadley, D., Hess, C., Klauk, R., Lasca, N. and Schneider, A.F., 1977, Shoreline erosion and bluff stability along Lake Michigan and Lake Superior shorelines of Wisconsin: Shore Erosion Technical Study Technical Report, Coastal Management Program, State Planning Office, 199 p. plus appendices.
  • 5. 5
    Identifying and Representing Wisconsin’s Great Lakes Shoreline
    2008
    1976
    Door County
  • 6. 6
  • 7. Identifying and Representing Wisconsin’s Great Lakes Shoreline
    Project Tasks
    Geo-Locate 1976 oblique photos
    Capture 2007 oblique photos
    Photo Interpretation / Shoreline Classification
    Analysis, Results and Reporting
    Web Maps, Oblique Viewer & Public Access
    7
  • 8. 8
    Scan photos
    Manually geo-locate
    Virtual Earth/Bing Maps
    Geo-locating 1976 oblique photos
    Photo Count
    L. Michigan ~ 1,517
    L. Superior ~ 1,094*
    Green Bay n/a
    * Not complete
  • 9. 9
    Digital Cameras
    NIKON E8800
    Panasonic DMC-FZ30
    Garmin GPS
    GPS-Photo Link
    Capturing 2007 oblique photos
    Photo Count
    L. Michigan ~ 1,463
    L. Superior ~ 2,755
    Green Bay ~ 3,648
  • 10. 10
    GDB Feature Classes (3)
    Beach description (linear)
    Armored / Unarmored
    Protection class
    Beach class
    Backshore (linear)
    Type – no bluff / low bank or bluff
    Vegetation
    Condition – stable to failing
    Structure (point)
    Groin, jetty, or offshore breakwater
    Small Boat dock
    Photo Interpretation & Shoreline Classification
  • 11. 11
    Issues & Limitations
    Single Date Shoreline
    WDNR 24k Hydro
    Qualitative Classification
    Photo Interpretation Confidence levels
    Data Storage & Organization
    10,000 + photos
    Manual geo-location process – human error
    Photo Interpretation & Shoreline Classification
  • 12. 12
    Photo Interpretation & Shoreline Classification
    1976
    Port Washington
  • 13. 13
    Photo Interpretation & Shoreline Classification
    2007
    Port Washington
  • 14. 14
    Shoreline Analysis & Results
    Shore Structures
    Beach Classification
    Bluff Classification
  • 15. 15
    Web Mapping & Oblique Viewer
    OpenGeo Community Suite
    Premier open source spatial relational database—fast, robust, full-featured
    Map and feature server providing standardized web access to GIS data sources and cartographic quality maps
    Web map accelerator, intelligently caching and serving tiles to make maps scale
    Industry-standard Javascript map controls for viewing and editing data from multiple sources
    Rich user interface controls for the geospatial web.
  • 16. 16
  • 17. 17
  • 18. 18
    Applications
    Public Outreach & Education
    Tourism
    Hazard Management (storms, erosion)
    Identify area of concern – e.g. unstable bluff
    Compare photos over time
    Create maps w/ supporting photos
    Waterfront Planning
    Watershed Management
    Web Mapping & Oblique Viewer
  • 19. 19
    1. Web Map & Oblique Viewer
    2. Image/Feature Catalog
    Bulk downloads
    By Geography
    GeoNetwork
    Public Access to Photos and Data
  • 20. 20
    1. Web Map & Oblique Viewer
    w/ basic data access
    March – April 2011
    2. Image/Feature Catalog
    November – December 2011
    Coming Soon!
  • 21. 21
    Oblique Viewer
    Custom selection of photo points
    Additional navigation tools
    Historic Shorelines
    Erosion rates
    Additional Oblique Imagery
    Great Lakes Flood Hazard Mapping – FEMA/USACE
    City / County photos
    User-added photos
    Wisconsin Coastal Atlas
    Future Directions
  • 22. 22
    Funding provided by:
    Jason Hochschild, SK1 Consulting, LLC
    Web Map & Oblique Viewer
    Lisa Colville, UW Madison Geology Dept.
    Project Analyst
    David Hart, UW Sea Grant Institute
    Project Support
    Acknowledgments
  • 23. 23
    Thank You
    Jeff Stone
    jeff@floods.org
    WLIA Conference
    February 17, 2011