Color Digital Orthophotoquads (DOQs) from USGS
The USGS EROS Data Center (EDC) now has Color 7.5 min Digital Orthophoto
Quadrangles (DOQs) available for sale. Until recently, areas in Alaska and
Washington/Oregon had only Black and White (BW) 7.5 min DOQ coverage. USGS
EDC recently received 94 color (CIR) 7.5 min DOQs for Alaska, with more
color DOQ's on the way. DOQs are digital representations of aerial
photographs, usually at 1 meter resolution.
Quick Facts:
Orderable on Earth Explorer - earthexplorer.usgs.gov
Price: $15 per file (same price as the BW 7.5min DOQs)
Plus standard digital base charges of $45.00/CD,
$60.00/DVD, or $30.00/FTP in addition to the
$5.00 handling charge
Product Code: TU61 (same as the BW 7.5min DOQs)
Average file size of the 94 we have: ~90mb
There's no quick way yet to determine which areas are in color and which
are B&W - best way is to look at earthexplorer.usgs.gov or call 1 888 ASK
USGS for the area you're interested in.
Author:
Dr. Joseph J. Kerski
Geographer
Box 25046 - MS 507
Denver, CO 80225-0046 USA
Tel 303 202 4315
U.S. Department of the Interior