http://seamless.usgs.gov/website/seamless/products/1doqq.asp
http://www.usgsquads.com/prod_doqq.htm
A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines the image characteristics of the original photograph with the georeferenced qualities of a map.
DOQs are black and white (B/W), natural color, or color-infrared (CIR) images with 1-meter ground resolution.
The source data is the original USGS DOQQ's, but have been made available as a seamless product. There is a limited area for the initial release. As more data is loaded, they will be incorporated into the seamless system. To see the areas where the seamless product is available, at the map interface, click on the 1m Ortho Index.
http://www.usgsquads.com/prod_doqq.htm
A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines the image characteristics of the original photograph with the georeferenced qualities of a map.
DOQs are black and white (B/W), natural color, or color-infrared (CIR) images with 1-meter ground resolution.
The source data is the original USGS DOQQ's, but have been made available as a seamless product. There is a limited area for the initial release. As more data is loaded, they will be incorporated into the seamless system. To see the areas where the seamless product is available, at the map interface, click on the 1m Ortho Index.
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