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USGS High Resolution Orthoimagery for Franklin County, Massachusetts: 18TYN230085_201404_0x3000m_4B_1


Publication Date
Time Period
File Modification Date
2015-10-14 04:01:00


U.S. Geological Survey, 2014, USGS High Resolution Orthoimagery for Franklin County, Massachusetts: 18TYN230085_201404_0x3000m_4B_1: U.S. Geological Survey: Sioux Falls, SD,,,


"This data set consists of 0.3 meter pixel resolution (approximately 1-foot), four band (R,G,B,IR) orthoimages covering the FY2014 Massachusetts area of interest. 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. The design accuracy is estimated not to exceed 1.52-meters NSSDA 95% confidence (0.88-meters Root Mean Squared (RMSE) Error XY (0.62 meter RMSE X or Y). Each orthoimage provides imagery over a 1500-meter by 1500-meter block on the ground. There is no image overlap between adjacent files. The tile naming [...]


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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Original FGDC Metadata

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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.

Additional Information


Type Scheme Key
id gda 7355982

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