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Urbanization by Watersheds

1984 – 2009 Twin Cities Metropolitan Area. Urbanization by Watersheds. Tobias Fimpel & Alex Steele. Objective. Identify land cover changes within the 8 primary watersheds in the Twin Cities metro area from 1984 – 2009. Study Area. Data. Landsat images 8-15-1984 7-25-2009

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Urbanization by Watersheds

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  1. 1984 – 2009 Twin Cities Metropolitan Area Urbanization by Watersheds Tobias Fimpel & Alex Steele

  2. Objective • Identify land cover changes within the 8 primary watersheds in the Twin Cities metro area from 1984 – 2009

  3. Study Area

  4. Data • Landsat images • 8-15-1984 • 7-25-2009 • Watersheds in the Twin Cities Metropolitan Area • Shapefile,DNR Level 08 Catchments from the Metropolitan Council.

  5. Data

  6. Procedures – Training Areas • Classification Scheme: • Water • Urban • Undeveloped • Agriculture

  7. Procedures – Supervised Classification

  8. Procedures – Clipping

  9. Procedures – Accuracy Assessments • Stratified Random Samples • Reference Data: Landsat • Overall accuracies of 72% and 84%

  10. Procedures – Change Detection

  11. Procedures – Clip Watersheds

  12. Results

  13. Results

  14. Results Mississippi River – Rush – Vermillion North Fork – Crow River

  15. Results

  16. Results

  17. Urbanization

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