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1 Meter Digital Orthoimagery Quarter Quadrangles (DOQQ)
Contents:
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 1m DOQQ subset image
(Washington DC) |
Description
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. To see the areas where
the seamless product is available, at the map interface, click on the 1m Ortho Index.
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Specifications
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1 Meter Digital Orthoimagery Quarter Quadrangles (DOQQ)
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| Resolution
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1 Meter
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| Projection
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UTM
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| Horizontal Datum
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NAD83
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Format Information
TIFF with world file, includes a projection file.
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Download Information
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1 Meter Digital Orthoimagery Quarter Quadrangles (DOQQ)
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| Delivery
Options |
Cost |
Format |
Availability |
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Free Download up to 250 MB increments |
No
Charge |
TIFF with world file |
Conterminous US and Portions of Alaska (see SDDS for current coverage)
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