viesore: visual impact evaluation system for offshore renewable energy
DESCRIPTION
30-minute presentation given at the Mid-America GIS Consortium Biennial Meeting, Kansas City, MO, April 2012.TRANSCRIPT
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VIESOREVisual Impact Evaluation System for Offshore Renewable Energy
Chad Cooper, Jackson Cothren, Malcolm Williamson, Snow WintersCenter for Advanced Spatial TechnologiesUniversity of Arkansas, Fayetteville
Robert SullivanArgonne National LaboratoryArgonne, Illinois
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Offshore wind 101
• First offshore wind farm – Denmark 1991• 2010 – 39 offshore farms off coasts of UK,
Europe, and Scandinavia• Largest turbines now over 500 feet tall• Power carried to land via transmission cable• Wind energy contractors submit site proposals
to governing bodies– Contractors provide photomontages
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Offshore wind is coming...Cape Windwww.capewind.org
www.capewind.org
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Offshore wind is coming...Cape Windwww.capewind.org
www.capewind.org
photom
ontages!
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...and so will the proposals
Bureau of Ocean Energy Management (BOEM) reviews all project proposals• offshore oil and gas exploration• offshore wind• wave• tidal flow• ocean current• environmental laws and regulations
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Offshore wind 101 – Cape Wind
• Siemens SWT 3.6-107– rotor diameter – 107m (351ft)– total turbine height – 132m (433ft)
• 130 turbines arranged in a grid• 12.5 miles of transmission cable• anchored in seabed, out of shipping channels
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BOEM system requirements
The system must:• enable spatial design of offshore facility• import geospatial data• allow user control of atmospheric, lighting, wave conditions• generate spatially accurate and realistic visualizations • output reports and images• provide a user-friendly interfaceIt shall enable users to:• evaluate photomontages in environmental impact
statements (EISs)• independently assess proposed facilities
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ApproachPhotomontages
Pros:• realistic• accepted• accurate* *dependent upon lens used
Cons:• need photos from every potential point of interest
– oops, we didn’t take a photo from there!• difficult to show different lighting/weather conditions• human error
www.capewind.org
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ApproachPhotomontages
Pros:• realistic• accepted• accurate* *dependent upon lens used
Cons:• need photos from every potential point of interest
– oops, we didn’t take a photo from there!• difficult to show different lighting/weather conditions• lots of room for human error
www.capewind.org
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Approach
3D visualizations
Pros:• CAST does 3D• photorealistic• Vue Python APICons:• user interface is scary• learning curve• you need horsepower
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Approach
3D visualizations viaGIS interface
Pros:• CAST does 3D• photorealistic• Vue Python APICons:• user interface is scary• learning curve• you need horsepower, but affordable
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Approach
3D visualizations viaGIS interface
Pros:• CAST does 3D• photorealistic• Vue Python APICons:• user interface is scary• learning curve• you need horsepower, but affordable
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System design
SHP
ArcGIS 10.0Script tools
JPG
ReportsRenders
Input data
ArcGIS 10.0friendly interface
Videos
HMTL
batch
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System design
SHP
ArcGIS 10.0Script tools
JPG
ReportsRenders
Input data
ArcGIS 10.0friendly interface
Videos
HMTL
batch
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System design
SHP
ArcGIS 10.0Script tools
JPG
ReportsRenders
Videos
Input data
ArcGIS 10.0friendly interface
XML
Log
Log
Log
.vue
XMLtemplateHMTL
.atm.mat
batch
project
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Development to date
• translate data for import into Vue– digital elevation– wind turbine generator (WTG) point locations– key observation points (KOPs)
• import above data into Vue• move objects around as needed, adjust size• import 3D WTG model• set camera and sun position• render to jpeg
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Development to date
• translate data for import into Vue– digital elevation– wind turbine (WTG) point locations– key observation points (KOPs)
• import above data into Vue• move objects around as needed, adjust size• import 3D WTG model• set camera and sun position• render to jpeg
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Current results
• Successful import of real-world GIS data into Vue 3D software package for use in visualizations
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Current results
• Successful import of real-world GIS data into Vue 3D software package for use in visualizations
• Creation of photorealistic visualization renderings of planned offshore renewable energy installations
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Current results
• Successful import of real-world GIS data into Vue 3D software package for use in visualizations
• Creation of photorealistic visualization renderings of planned offshore renewable energy installations
• User provided with friendly interface which allows them to import data
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Issues tackled
• Vue data formats• Data translations galore• Using real-world data in software that wasn’t
really made for it• Coarse-grained Vue Python API makes you
come up with creative workarounds
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Still to do
• User interface to Vue– Toolbox designs and
linkage to Python scripts• ArcToolbox tools• wxPython
• Report generation– Python
• Help/documentation