New Jersey 2007 – 2008 High Resolution Orthophotography, False Color Near-Infrared
NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS)
This service displays 3 band false color infrared (near IR) images from the 4-band project.The native data set spatial reference system is State Plane Coordinate System NAD83 Coordinates, U.S. Survey Feet. In most client software, the default spatial reference system of the service will be Geographic Coordinates, WGS84. Multi-spectral digital orthophotography was produced at a scale of 1:2400 (1″ = 200′) with a 1 foot pixel resolution for the State of New Jersey totaling approximately 8,162 square miles. The GeoTIFF tiles delivered to the State of New Jersey were then converted to lossless JPEG2000 files, which are used in this service. Aerial photography of the entire State of New Jersey was captured during March-May, 2007. Two flight dates (2007-04-30 and 2007-05-03) were rejected from the original 2007 flight due to excessive leaf conditions. Spring 2008 re-flights were planned and acquired in three missions dating: 2008-04-03, 2008-04-10, and 2008-04-15. The final orthophotos for parts of Warren, Hunterdon, Sussex, Passaic, Essex, Union, and all of Bergen and Hudson Counties were created utilizing both years of imagery.
In February of 2007, the acquisition of new state-wide digital aerial photography and the production of multi-spectral digital orthoimagery was planned, initiated and primarily funded by the NJ Office of Information Technology in partnership with other State Agencies: NJ Department of Transportation, NJ Department of Military and Veterans Affairs, and NJ Transit. Funding also was provided by U.S. Geological Survey (USGS) and the U.S. Department of Agriculture, Natural Resources Conservation Service (NRCS). A contract team responsible for orthophoto production and independent quality assurance was led by Photo Science Inc. and included a team of subconsultants consisting of Lucerne International, TerraSurv Inc. and BAE Systems.The Web Map Service was developed and is provided by the NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS).
Horizontal Position Accuracy
The original GeoTIFF orthophotography has a plus or minus 4.0 ft horizontal accuracy at 95% confidence level, National Standard for Spatial Data Accuracy (NSSDA) , for a 1.0 foot Ground Resolution Distance (GRD). Because the WMS provides a resampled image, the accuracy of this image may be slightly poorer. This effect has not been examined in a quantitative manner.
Acknowledgement of “NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS)” as the data source would be appreciated. Reference date for the data set in a citation should be 2007 – 2008.
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