Infrared Aerial Photo

Infrared aerial photos are made with cameras either digitally or with film that is sensitive to infrared light rays. The uses for infrared aerial photos vary from tracking rainfall, to migratory patterns of animals.

http://www.umesc.usgs.gov/data_library/gis_data/aerial_photos/1994_illinois_river_72dpi/la_grange/187-013-lg-1994.jpg