Utilizing Advanced Satellite Imagery and GIS to Re-think...
Transcript of Utilizing Advanced Satellite Imagery and GIS to Re-think...
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Utilizing Advanced Satellite Imagery and GIS to Re-think Leak Detection
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The Water Loss Problem
• Aging water systems
• 650 water main breaks
everyday in the US (AWWA)
• “Non-Revenue Water”
▪ 16% of potable water lost
every day
▪ Up to 75% is recoverable
• Replacement efforts are
expensive
• Role of leak detection services
1. Thornton, J., Sturm, R., Kunkel, G., Water Loss Control Manual (2nd Edition), McGraw‐Hill, 2008.
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Current Standard Acoustic Surveying MethodsExample: section of a system that would require field crews to listen on all system hydrants,followed by correlation on any sites that registered noise
1,873 miles of pipe
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Satellite Guided Acoustic SurveyExample: section of a system that would require field crews to perform only correlation on any sites identified by satellite technology. Circles (or buffers) indicate an area where leak plume was detected
1,873 miles of pipe
42 miles of pipe
(within buffers)
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“Seeing” Rather than Listening
Satellite unaffected by:
• Proximity to leak
• Pipe material
• Leak volume
• Technician listening skills
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Technology Overview
• Partnership with Utilis LTD.
• Founded in 2013
• Based in Israel with global
reach
Satellite Spectral Image
Acquisition
Radiometric Corrections
Algorithmic Analysis
Web-based App and
Intuitive UI
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Field Correlation
Dashboard & Data Delivery
Webmap Production
Criticality Analysis
Geoprocessing & Buffer Generation
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Supporting Crews in the Field
1. Real-time location feedback via Collector App
2. Overlaying client-provided data on webmaps
• Pipe material/size
• Maximizing use of listening points
3. Daily plan of action
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Improved Data Collection
aaaaaaaaaa
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Operations Dashboard
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StandardAcoustic Survey
Satellite Guided Acoustic Survey[Satellite + Traditional Acoustic]
<1.16leaks/day/person
Up to 6leaks/day/person
Leaks Foundper person / day
National Average1 Leak Finding per
2.5-3.7miles
Leak DensityLeaks per mile
Satellite-guided Program Average 1 Leak Finding per
0.5 Miles
Survey Cyclelength of time
MonthlyMonthly, quarterly, yearly options
1-5 years
Comparing Standard vs. Satellite
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•Entire systems can be
surveyed quickly
•Survey difficult-to-reach areas
•Reduce leak run times
•Priority leaks can be targeted
•Keep non-revenue water down
•Reduce carbon foot print
•More efficient use of human
and financial capital
resources
Summarizing the Benefits
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•Entire systems can be
surveyed quickly
•Survey difficult-to-reach areas
•Reduce leak run times
•Priority leaks can be targeted
•Keep non-revenue water down
•Reduce carbon foot print
•More efficient use of human
and financial capital
resources
Summarizing the Benefits
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• Algorithm continues to improve
• Smaller buffers
• Terrain versatility
• 3D mapping integration
• Combining with asset management
programs – better data, better results
• Informing new leak detection
technologies
• Insights for ArcGIS
• Analysis and predictive modelling
opportunity
• On the fly prioritization
Looking to the Future
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Andrew FryData Analyst, Water DivisionHydromax [email protected]
Thank You for Listening
Shane MajetichManager, National Water Distribution ServicesHydromax [email protected]