Infrared aerial photos use infrared film which is sensitive to a portion of the spectrum of light. The image that results from that is a very useful tool that is used in many research fields. All the images are taken high above the ground aboard aircrafts or other flying mechanisms that allow us to look at these great aerial views. The picture above is the Sacramento river and gives us a look at how different changes to the environment can occur. Researchers are able to look at the colors given from the photos and tell us what changes may have occurred.
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