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Federal
USGS Digital Orthophoto Quadrangles
National Aeronautics and Space Administration —
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... -
Federal
Aerial Photographs (from AMES Pilot Land Data System); USGS EDC, Sioux Falls
National Aeronautics and Space Administration —
The aerial photography inventoried by the Pilot Land Data System (PLDS) at NASA AMES Research Center has been transferred to the USGS EROS Data Center. The photos... -
Federal
Committee on Earth Observation Satellites (CEOS) International Directory Portal
National Aeronautics and Space Administration —
The CEOS IDN is an international effort developed to assist researchers in locating information on available datasets and services. The directory is sponsored as a...