Sunday, August 3, 2008

DOQQ


DOQQ or Digital Orthophoto Quarter Quadrangle iimages are GIS images of aerial photos scanned into a computer with seams and angle displacements corrected. A DOQQ is a one meter pixel resolution that covers areas measuring 3.75-minutes longitude and latitude at a 1:12,000 scale. The above DOQQ is of Washington, D.C.

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