Скупова података са тагом imagery има 4:
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Description "OpenAerialMap is an open collection of aerial photographs, collected into a single coherent view of the world." Openness: OPEN License: Public Domain of CC Attribution....
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Description Landsat ETM+, TM, and MSS data are available from USGS for free. Base data page leads on to: http://eros.usgs.gov/products/satellite/landsat_ortho.html Not entirely clear...
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About Since 2004, WisconsinView has made aerial photography and satellite imagery of Wisconsin available to the public for free over the web. As part of the AmericaView consortium,...
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CCRS has packaged and prepared this dataset for distribution through GeoGratis to offer interested individuals the opportunity to develop expertise in the use of satellite imagery.