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Tim Kennedy
Program Specialist
Overview
 Wisconsin Land Survey Network Pilot
  Project
 Project goals and objectives
 Results to date
 Realizations
 Next steps
Wisconsin Land Survey Network

A Statewide
(geospatial
dataset)
Representation
of the PLSS
Goals & Objectives
 Improved dataset of statewide PLSS data
 Improved coordinates in participating counties
 Integration of Landnet where local data
  unavailable
 Replicable data model for statewide data
  integration
 Broad data access
 Sustainable
Pilot Project
  Study Area
 Varied status of
  remonumentation
 Abundance of
  diverse meander
  features
 Non-PLSS areas
 Data availability
SCO Pilot Project Efforts to Integrate County PLSS Datasets - Timothy Kennedy
SCO Pilot Project Efforts to Integrate County PLSS Datasets - Timothy Kennedy
Coordinate Accuracy
 Number of Landnet section corner points in
  study area: 6,184


 Number of county section corner points in
  study area: 5,491
Coordinate Accuracy
Mean distance between Landnet and county
corner points: 8.33   m

Maximum distance: 124.95      m

Minimum distance: 0.05    m
SCO Pilot Project Efforts to Integrate County PLSS Datasets - Timothy Kennedy
SCO Pilot Project Efforts to Integrate County PLSS Datasets - Timothy Kennedy
Expectations vs. Experience
      Expectation                Experience
Automated data ingestion     Resource intensive
    County x, y data          Limits usefulness
   Pin cushion effect           Very minimal
 Unique corner point i.d.    Resource intensive
  Automated indexing        Many datasets include
      assignment                  indexing
Next Steps
1.   Townships
2.   Quarter-sections
3.   Quarter-quarter sections
4.   Half-quarter sections?
5.   Half quarter-quarter sections?
6.   Primary display point determination
7.   Lines
8.   Polygons
Project Expecations
Phase I
   – Pilot study using nine counties
   – Solicit partners and support
   – Finalize data model and data integration procedures
   – Geodatabase of study counties PLSS data
Phase II
   – Statewide coverage (non-PLSS areas – long lots, metes &
     bounds, etc.)
   – Distribution network (web-mapping
     application, download)
PLSS Finder




              http://maps.sco.wisc.edu/PLSSFinder/
Project Team
                     Howard Veregin
                    State Cartographer
                      608-262-6852
                    veregin@wisc.edu

                    Brenda Hemstead
                      Data Services
                       Professional
                      608-263-4371
                   hemstead@wisc.edu

                     Timothy Kennedy
                     Program Specialist
                       608-890-3793
www.sco.wisc.edu   ttkennedy@wisc.edu

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SCO Pilot Project Efforts to Integrate County PLSS Datasets - Timothy Kennedy

  • 2. Overview  Wisconsin Land Survey Network Pilot Project  Project goals and objectives  Results to date  Realizations  Next steps
  • 3. Wisconsin Land Survey Network A Statewide (geospatial dataset) Representation of the PLSS
  • 4. Goals & Objectives  Improved dataset of statewide PLSS data  Improved coordinates in participating counties  Integration of Landnet where local data unavailable  Replicable data model for statewide data integration  Broad data access  Sustainable
  • 5. Pilot Project Study Area  Varied status of remonumentation  Abundance of diverse meander features  Non-PLSS areas  Data availability
  • 8. Coordinate Accuracy  Number of Landnet section corner points in study area: 6,184  Number of county section corner points in study area: 5,491
  • 9. Coordinate Accuracy Mean distance between Landnet and county corner points: 8.33 m Maximum distance: 124.95 m Minimum distance: 0.05 m
  • 12. Expectations vs. Experience Expectation Experience Automated data ingestion Resource intensive County x, y data Limits usefulness Pin cushion effect Very minimal Unique corner point i.d. Resource intensive Automated indexing Many datasets include assignment indexing
  • 13. Next Steps 1. Townships 2. Quarter-sections 3. Quarter-quarter sections 4. Half-quarter sections? 5. Half quarter-quarter sections? 6. Primary display point determination 7. Lines 8. Polygons
  • 14. Project Expecations Phase I – Pilot study using nine counties – Solicit partners and support – Finalize data model and data integration procedures – Geodatabase of study counties PLSS data Phase II – Statewide coverage (non-PLSS areas – long lots, metes & bounds, etc.) – Distribution network (web-mapping application, download)
  • 15. PLSS Finder http://maps.sco.wisc.edu/PLSSFinder/
  • 16. Project Team Howard Veregin State Cartographer 608-262-6852 veregin@wisc.edu Brenda Hemstead Data Services Professional 608-263-4371 hemstead@wisc.edu Timothy Kennedy Program Specialist 608-890-3793 www.sco.wisc.edu ttkennedy@wisc.edu