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USGS High Resolution Orthoimagery for York County, south Carolina: 17SMU740790_200502_0x3000m_CL_1


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2015-10-14 07:39:00


U.S. Geological Survey, and Kucera International Inc, 2014, USGS High Resolution Orthoimagery for York County, south Carolina: 17SMU740790_200502_0x3000m_CL_1: U.S. Geological Survey: Sioux Falls, SD,,,


"A digital orthophoto (DO) is a digital raster image of an aerial photograph which, through a process of differential rectification, has been brought to an accurate, uniform scale with a specified tolerance. The differential rectification process involves relating the digital photo imagery to terrain coordinates and elevations (e.g., a digital terrain model) so as to correct for scale variation due to terrain relief and image displacement due to the angular offsets of the aerial camera at the time of exposure. A digital orthophoto is essentially the image-based equivalent ofa photogrammetrically compiled planimetric map." There is no image overlap between adjacent files.Data received at Earth Resources Observation and Science Center [...]


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A digital orthoimage is a geometrically accurate photographic record of landscape conditions at the time of the corresponding aerial photography. As such, High Resolution Orthoimagery is useful for a variety of applications, such as environmental monitoring, facility engineering/maintenance, city/county planning, property line review, etc. The digital orthoimage can be used alone or as a raster basemap for corresponding vector line mapping. The detailed focus of High Resolution Orthoimagery provides emergency responders critical information in determining the best evacuation routes, alternative routes and safe access to aid. High Resolution Orthoimagery assists law enforcement personnel in determining the best locations to place surveillance cameras in high-traffic urban areas and popular attractions. The data assists Federal, State and local emergency responders in planning for homeland security efforts. This data also supports The National Map.

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Type Scheme Key
id gda 7380683

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