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Spatial Data and Technology in Land Administration
Property Rights and Resource Governance Issues and Best Practices
Washington, DCOctober 2012
Presenter: Jill Urban-Karr
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Contents
• What is spatial data?• GIS/LIS/GPS/Remote Sensing• Approaches• Points to Take Away
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What is Spatial Data?
• “the data or information that identifies the geographic location of features and boundaries on Earth”
• Spatial Reference System• Maps• Imagery• Geography• Scale • Time• Twitter
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GIS/LIS – Geographic/Land Information Systems
“is a facility for preparing, presenting,and interpreting facts that pertain to the surface of the earth”• Web Mapping• Google Earth/Open Street
Maps• INSPIRE/SDI• Crowd Sourcing
Parcel Linked to RPT+RGD
Parcel Linked to RGD
Parcel Linked to RPT
Parcels Not Linked
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GPS-Global Positioning Systems
• Geodesy “science of measuring and monitoring the size and shape of the Earth”
• Developed by USDOD in 1978• Constellation of 32 satellites• GLONASS, Beidou, Galileo• Time measurement
– Distances i.e. Meter
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Remote Sensing
• Satellites• Aerial Photography
– Nadir– Oblique– Video– LIDAR
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Remote Sensing-Aerial Photography
• High Resolution
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Remote Sensing-Aerial Photography
• Medium Resolution
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Remote Sensing-Aerial Photography
• Low Resolution
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Remote Sensing
• Analysis
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Approaches: Flexible Systems
• Index maps • Properties by
Points• Identify Features• Local knowledge• Evidence
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Approaches: Appropriate Technology
• Cell Phones• Solar Power• Wifi/Cell networks • GPS• High Resolution
Satellite Imagery• Digital Still/Video
Cameras• Commercial off the
Shelf Software/Open Source
• Web systems and data12
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Points to Take Away
• Spatial data is key to property rights but also to many other development needs
• Collect once – use many times• Use various modes of spatial
data tools and gathering approaches
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• Blending scales and accuracies is acceptable in data poor environments
• Spatial data has considerable value but must be maintained
• Maintenance requires good governance• Emerging economies must look to partnerships with
private sector to develop and sustain spatial data