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This data has achieved Bronze level on 25 October 2015 which means this data makes a great start at the basics of publishing open data.

High Resolution 7.5' Quarter-Quad Orthoimages for the state of West Virginia, UTM Zone 17 for entire state, MrSID Compressed

Summary

Type of release
ongoing release of a series of related datasets

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
19 June 2015
Modified Date
19 June 2015
Update Frequency
irregular
Publishers
Federal Emergency Management Agency, Department of Homeland Security
Identifier
high-resolution-7-5-quarter-quad-orthoimages-for-the-state-of-west-virginia-utm-zone-17-for-ent2e3aa
Landing Page
http://catalog.data.gov/dataset/high-resolution-7-5-quarter-quad-orthoimages-for-the-state-of-west-virginia-utm-zone-17-for-ent2e3aa

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Description

An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation has been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. For this dataset, 2-foot pixel resolution natural color digital orthimages were obtained from the West Virginia Statewide Addressing and Mapping Board. The orthoimages were mosaicked and reprojected by the USGS from the original 2-foot pixel, West Virginia North and South State Plane (feet) Coordinate Systems to Universal Transverse Mercator (UTM) (meters), Zone 17, NAD83 datum. Each orthoimage (DOQQ) provides the equivalent to a quarter of a 7.5-minute map (3.75 minutes of latitude and longitude) with overedge. The overedge is approximately 300 meters beyond the extremes of the corners of coverage. The naming convention is based on the U.S. Geological Survey 1:24,000 Topographic Map Series with the quadrant abbreviation, i.e. athens_ne.tif, etc. This data set covers the entire state of West Virginia including into UTM zone 17 on the east edge.

General Information

Legal Information

This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

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  • Find out how to contact someone about this data at

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