Saturday, July 26, 2008

Digital Orthophoto Quarter Quadrangle (DOQQ)

This is a clipped portion of the NW quadrant of Union Springs, NY.
A digital orthophoto quadrangle (DOQ) is a computer-generated image of an aerial photograph in which image displacement caused by terrain relief and camera tilts has been removed. It combines the image characteristics of a photograph with the geometric qualities of a map. http://www.usgsquads.com/images/doqq_cir_unionsprg_small.jpg

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