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. |