Visualizing Dam Removal and RiverRestoration in the Pacific Northwest    ASPRS/CaGIS Specialty Conference               No...
Agenda1.   Background2.   Approach3.   Results4.   Outcomes
Background•   250-mile river system•   Once 3rd largest salmon run on    west coast•   Pacific Corp Klamath Hydro    Power...
Overall Approach1.   Model existing conditions     a) Terrain     b) Features     c) Textures2. Model future conditions   ...
ChallengesLarge AreaComplex terrainForestedData quality/availability  •   Ortho imagery  •   Lake/river bed texturesLimite...
Existing Conditions•   Terrain•   Reservoir surface•   Vegetation•   Structures    –   Dams    –   Buildings
nested, seamless TINs   TERRAIN CREATIONregional context: USGS DEM
nested, seamless TINs   TERRAIN CREATIONregional context: USGS DEM
nested, seamless TINs   TERRAIN CREATIONareas of interest
LandSat imagery     TEXTURE CREATIONcolor, but low resolution
DOQQ imagery        TEXTURE CREATIONhigh resolution, but no color
Solution         TEXTURE CREATIONmerged using Photoshop
Existing trees    FEATURE CREATIONUSFS tree stand data
Existing trees   FEATURE CREATIONTree images
Existing trees   FEATURE CREATIONTree “fences”
Existing trees   FEATURE CREATIONTree “fences”
Structures      FEATURE CREATIONDam and powerhouse
Existing conditions   RESULTSDam and powerhouse
Existing conditions   RESULTSDam and powerhouse
Future Conditions•   Reservoir bottom•   River bed•   Re-vegetation•   River surface
nested, seamless TINs   TERRAIN CREATIONExisting conditions
nested, seamless TINs    TERRAIN CREATIONReservoirs clipped out
nested, seamless TINs   TERRAIN CREATIONReservoir bottom
TEXTURE CREATION    Historic mapDigitized river course
hillshade raster      TEXTURE CREATIONrandom color rampon elevation rasterphoto-realsediment texture
Future conditions   TEXTURE CREATIONReservoir draw-down
hillshade                      TEXTURE CREATIONelevationslopeaspectphoto-realrestoration texture
Future conditions   TEXTURE CREATIONReservoir draw-down
Future conditions   TEXTURE CREATIONRe-vegetation/river restoration
Results1. Interactive fly-through2. Animation videos3. Still shots (before and after)
existing conditions   RESULTSDam and powerhouse
future conditions       RESULTSRestored river valley
existing conditions   RESULTSDam and powerhouse
future conditions    RESULTSReservoir drawdown
future conditions       RESULTSRestored river valley
OutcomesThe visualizations were used            “The visualizationsextensively by American Rivers          allayed many fe...
OutcomesNovember 2008•   PacifiCorp, the federal    government, and the    states of California and    Oregon signed an   ...
MORE INFOCommunityVizhttp://www.communityviz.comAmerican Rivershttp://www.americanrivers.orgKlamath informationhttp://www....
Visualizing Dam Removal and RiverRestoration in the Pacific Northwest    ASPRS/CaGIS Specialty Conference               No...
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Dam Removal Visualization

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Detailed presentation of dam removal and river restoration visualization project which helped in the decommissioning of two power dams in California.

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Dam Removal Visualization

  1. 1. Visualizing Dam Removal and RiverRestoration in the Pacific Northwest ASPRS/CaGIS Specialty Conference November 16, 2010 Lex Ivey
  2. 2. Agenda1. Background2. Approach3. Results4. Outcomes
  3. 3. Background• 250-mile river system• Once 3rd largest salmon run on west coast• Pacific Corp Klamath Hydro Power Project began in 1918• Relicensing process in 2001• American Rivers involved in 2001• Hired TerraCognito to create 3D visualizations
  4. 4. Overall Approach1. Model existing conditions a) Terrain b) Features c) Textures2. Model future conditions a) Terrain b) Features c) Textures
  5. 5. ChallengesLarge AreaComplex terrainForestedData quality/availability • Ortho imagery • Lake/river bed texturesLimited budget
  6. 6. Existing Conditions• Terrain• Reservoir surface• Vegetation• Structures – Dams – Buildings
  7. 7. nested, seamless TINs TERRAIN CREATIONregional context: USGS DEM
  8. 8. nested, seamless TINs TERRAIN CREATIONregional context: USGS DEM
  9. 9. nested, seamless TINs TERRAIN CREATIONareas of interest
  10. 10. LandSat imagery TEXTURE CREATIONcolor, but low resolution
  11. 11. DOQQ imagery TEXTURE CREATIONhigh resolution, but no color
  12. 12. Solution TEXTURE CREATIONmerged using Photoshop
  13. 13. Existing trees FEATURE CREATIONUSFS tree stand data
  14. 14. Existing trees FEATURE CREATIONTree images
  15. 15. Existing trees FEATURE CREATIONTree “fences”
  16. 16. Existing trees FEATURE CREATIONTree “fences”
  17. 17. Structures FEATURE CREATIONDam and powerhouse
  18. 18. Existing conditions RESULTSDam and powerhouse
  19. 19. Existing conditions RESULTSDam and powerhouse
  20. 20. Future Conditions• Reservoir bottom• River bed• Re-vegetation• River surface
  21. 21. nested, seamless TINs TERRAIN CREATIONExisting conditions
  22. 22. nested, seamless TINs TERRAIN CREATIONReservoirs clipped out
  23. 23. nested, seamless TINs TERRAIN CREATIONReservoir bottom
  24. 24. TEXTURE CREATION Historic mapDigitized river course
  25. 25. hillshade raster TEXTURE CREATIONrandom color rampon elevation rasterphoto-realsediment texture
  26. 26. Future conditions TEXTURE CREATIONReservoir draw-down
  27. 27. hillshade TEXTURE CREATIONelevationslopeaspectphoto-realrestoration texture
  28. 28. Future conditions TEXTURE CREATIONReservoir draw-down
  29. 29. Future conditions TEXTURE CREATIONRe-vegetation/river restoration
  30. 30. Results1. Interactive fly-through2. Animation videos3. Still shots (before and after)
  31. 31. existing conditions RESULTSDam and powerhouse
  32. 32. future conditions RESULTSRestored river valley
  33. 33. existing conditions RESULTSDam and powerhouse
  34. 34. future conditions RESULTSReservoir drawdown
  35. 35. future conditions RESULTSRestored river valley
  36. 36. OutcomesThe visualizations were used “The visualizationsextensively by American Rivers allayed many fears,throughout the settlement filled in gaps and also served tonegotiation process inspire many people about howand in meetings with legislators, and soon a free-flowing Klamath“inspiring” to River could become a functional,potential funders who may be aesthetic resource thatcalled upon to help could benefit the environmentwith the costs of restoration. and community.” —Steve Rothert, American Rivers California Field Office Director
  37. 37. OutcomesNovember 2008• PacifiCorp, the federal government, and the states of California and Oregon signed an Agreement in Principle stating the preliminary view that “…..the benefits of dam removal outweigh the potential costs and impacts.”
  38. 38. MORE INFOCommunityVizhttp://www.communityviz.comAmerican Rivershttp://www.americanrivers.orgKlamath informationhttp://www.americanrivers.org/our-work/restoringrivers/dams/projects/restoring-klamath-river.htmlKlamath visualizationshttp://www.americanrivers.org/our-work/restoringrivers/dams/projects/envisioning-a-restored-klamath.htmlTerraCognito GIS Services, Inc:http://www.terracog.com
  39. 39. Visualizing Dam Removal and RiverRestoration in the Pacific Northwest ASPRS/CaGIS Specialty Conference November 16, 2010 Lex Ivey

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