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USGS High Resolution Orthoimagery for the Dallas and Fort Worth, Texas Urban Areas: 14SPB450405_200512_0x4800m_CL_1


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2015-11-18 23:04:00


U.S. Geological Survey, 2012, USGS High Resolution Orthoimagery for the Dallas and Fort Worth, Texas Urban Areas: 14SPB450405_200512_0x4800m_CL_1: U.S. Geological Survey: Sioux Falls, SD,,,


"An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. For this dataset, 0.5-foot pixel resolution natural color digital orthoimages were obtained through a joint effort with NGA, USGS and NCTCOG. The orthoimages were mosaicked and reprojected by the USGS from the State Plane coordinate system to Universal Transverse Mercator (UTM) projection with a NAD83 datum. Resampled pixel sesolution is 3.0-meters. Each orthoimage provides 1500 x 1500-meter ground coverage. There is no image overlap between adjacent files." An [...]


Point of Contact :
U.S. Geological Survey
Process Contact :
U.S. Geological Survey
Distributor :
U.S. Geological Survey
Metadata Contact :
U.S. Geological Survey
Originator :
U.S. Geological Survey
Publisher :
U.S. Geological Survey

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"This data depicts geographic features on the surface of the earth. It was created to provide easily accessible geospatial data which is readily available to enhance the capability of Federal, State and local emergency responders, as well as plan for homeland security efforts. This data also supports The National Map." 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 7650011

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