Published By Federal Emergency Management Agency, Department of Homeland Security
Issued about 9 years ago
US
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Summary
Description
Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for sensor distortions and orientation, and terrain relief. Digital orthoimages have the geometric characterstics of a map and image qualities of a photograph. (Source: Circular A-16, p.16)