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Guide to Using DOQQs from the ARIA Site
Introduction
Arizona Regional Image Archive ( ARIA ) is making available the U.S. Geological Survey's Digital Orthophoto Quarter Quadrangles ( DOQQs ) for Arizona that were purchased by the University of Arizona Library .
DOQQS are scanned, ortho-rectified black-and-white (b/w) and color high-altitude aerial photographs from the National Aerial Photography Program ( NAPP ) program. You can directly link to ARIA's DOQQ page to find additional information. Each DOQQ image covers 1/4 of a U.S. Geological Survey 7.5 minute quadrangle (1:24,000 scale topographic map).
Searching
Search by various ways starting from the ARIA DOQQS screen or by clicking "Images" on the ARIA home page:
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Using the interactive map -- you can identify all image files that cover a particular point on the map. |
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Using the index map for DOQQs. |
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By U.S.G.S. 7.5' topographic quad sheet name (aka "place name") or by latitude and longitude. |
