Saturday, December 4, 2010

DOQQ (Digital Orthophoto Quarter Quadrangles)



A DOQQ is a map where evenly measured samples are taken of the earth's surface and manipulated through computer software to fit the photo samples to the actual shape of the earth.  This form of mapping creates a more true interpretation of what is shown.

The DOQQ images above were used by two students at the University of Texas to show how erosion rates had changed in the area shown after Dell built a plant there.

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