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Aerial photographs and satellite images
By: Water Resources Division, U.S. Geological Survey
Because photographs and images taken from the air or from space are acquired without direct contact with the ground, they are referred to as remotely sensed images. The U.S. Geological Survey (USGS) has used remote sensing from the early years of the 20th century to support earth science studies and for mapping purposes.
Suggested Citation
Water Resources Division, U.S. Geological Survey, 1995, Aerial photographs and satellite images, 20 p., https://doi.org/10.3133/70045325.