dam removal visualization
DESCRIPTION
Detailed presentation of dam removal and river restoration visualization project which helped in the decommissioning of two power dams in California.TRANSCRIPT
![Page 1: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/1.jpg)
Visualizing Dam Removal and River Restoration in the Pacific Northwest
ASPRS/CaGIS Specialty Conference
November 16, 2010
Lex Ivey
![Page 2: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/2.jpg)
Agenda
1. Background
2. Approach
3. Results
4. Outcomes
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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
![Page 4: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/4.jpg)
Overall Approach
1. Model existing conditionsa) Terrain
b) Features
c) Textures
2. Model future conditionsa) Terrain
b) Features
c) Textures
![Page 5: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/5.jpg)
Challenges
Large Area
Complex terrain
Forested
Data quality/availability• Ortho imagery
• Lake/river bed textures
Limited budget
![Page 6: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/6.jpg)
Existing Conditions
• Terrain
• Reservoir surface
• Vegetation
• Structures– Dams
– Buildings
![Page 7: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/7.jpg)
TERRAIN CREATIONnested, seamless TINs
regional context: USGS DEM
![Page 8: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/8.jpg)
TERRAIN CREATIONnested, seamless TINs
regional context: USGS DEM
![Page 9: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/9.jpg)
TERRAIN CREATIONnested, seamless TINs
areas of interest
![Page 10: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/10.jpg)
TEXTURE CREATIONLandSat imagery
color, but low resolution
![Page 11: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/11.jpg)
TEXTURE CREATIONDOQQ imagery
high resolution, but no color
![Page 12: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/12.jpg)
TEXTURE CREATIONSolution
merged using Photoshop
![Page 13: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/13.jpg)
FEATURE CREATIONExisting trees
USFS tree stand data
![Page 14: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/14.jpg)
FEATURE CREATIONExisting trees
Tree images
![Page 15: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/15.jpg)
FEATURE CREATIONExisting trees
Tree “fences”
![Page 16: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/16.jpg)
FEATURE CREATIONExisting trees
Tree “fences”
![Page 17: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/17.jpg)
FEATURE CREATIONStructures
Dam and powerhouse
![Page 18: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/18.jpg)
RESULTSExisting conditions
Dam and powerhouse
![Page 19: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/19.jpg)
RESULTSExisting conditions
Dam and powerhouse
![Page 20: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/20.jpg)
Future Conditions
• Reservoir bottom
• River bed
• Re-vegetation
• River surface
![Page 21: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/21.jpg)
TERRAIN CREATIONnested, seamless TINs
Existing conditions
![Page 22: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/22.jpg)
TERRAIN CREATIONnested, seamless TINs
Reservoirs clipped out
![Page 23: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/23.jpg)
TERRAIN CREATIONnested, seamless TINs
Reservoir bottom
![Page 24: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/24.jpg)
Historic map
Digitized river course
TEXTURE CREATION
![Page 25: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/25.jpg)
hillshade raster
photo-real sediment texture
random color ramp on elevation raster
TEXTURE CREATION
![Page 26: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/26.jpg)
TEXTURE CREATIONFuture conditions
Reservoir draw-down
![Page 27: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/27.jpg)
hillshade
photo-real restoration texture
elevation
TEXTURE CREATION
aspect
slope
![Page 28: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/28.jpg)
TEXTURE CREATIONFuture conditions
Reservoir draw-down
![Page 29: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/29.jpg)
TEXTURE CREATIONFuture conditions
Re-vegetation/river restoration
![Page 30: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/30.jpg)
Results
1. Interactive fly-through
2. Animation videos
3. Still shots (before and after)
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RESULTSexisting conditions
Dam and powerhouse
![Page 32: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/32.jpg)
RESULTSfuture conditions
Restored river valley
![Page 33: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/33.jpg)
RESULTSexisting conditions
Dam and powerhouse
![Page 34: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/34.jpg)
RESULTSfuture conditions
Reservoir drawdown
![Page 35: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/35.jpg)
RESULTSfuture conditions
Restored river valley
![Page 36: Dam Removal Visualization](https://reader033.vdocuments.us/reader033/viewer/2022051411/547dd632b47959c5508b49e5/html5/thumbnails/36.jpg)
Outcomes
The visualizations were usedextensively by American Rivers throughout the settlement negotiation processand in meetings with legislators, and “inspiring” topotential funders who may be called upon to helpwith the costs of restoration.
“The visualizationsallayed many fears,filled in gaps and also served toinspire many people about howsoon a free-flowing KlamathRiver could become a functional,aesthetic resource thatcould benefit the environmentand community.”—Steve Rothert,American Rivers CaliforniaField Office Director
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Outcomes
November 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.”
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MORE INFO
CommunityViz
http://www.communityviz.com
American Rivers
http://www.americanrivers.org
Klamath information
http://www.americanrivers.org/our-work/restoringrivers/dams/projects/restoring-klamath-river.html
Klamath visualizations
http://www.americanrivers.org/our-work/restoringrivers/dams/projects/
envisioning-a-restored-klamath.html
TerraCognito GIS Services, Inc:
http://www.terracog.com
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Visualizing Dam Removal and River Restoration in the Pacific Northwest
ASPRS/CaGIS Specialty Conference
November 16, 2010
Lex Ivey