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Free Picture: Spring in Southeastern Illinois and Central Indiana
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Description Vegetation across southeast Illinois and central Indiana is shown in this set of multispectral and multiangle images from the Multi-angle Imaging SpectroRadiometer (MISR). Across the center of the image area, the Wabash River runs southward, and in some places corresponds with the Illinois-Indiana border. The White River flows through the city of Indianapolis (to the right of image center), and into Monroe Lake (a dark-colored reservoir at bottom-right). The majority of these fertile lands are used to grow crops, with woodlands present along the rivers and in the rolling hills of South Indiana, indicated in the lower right-hand portion of the images. The top-left panel is a natural color image from MISR's nadir camera, and the top-right panel is false-color image, also from MISR's nadir camera, but displaying data from MISR's near-infrared, red and green bands as red, green and blue, respectively. Living vegetation is highly reflective at near-infrared wavelengths and so appears in red hues in the false-color image. The lower-left panel is a multi-angular composite in which data from the red band of MISR's 46 backward, nadir, and 46 forward viewing cameras are displayed as red, green and blue, respectively. The lower-right panel displays near-infrared band data in the same configuration from the same cameras. Color variations in the angular composites serve as a proxy for changes in angular reflectance, which are in turn influenced by the vegetation structure, terrain, soil type, and the solar illumination conditions.
Keywords earth science, environment, environmental, geography, illinois, indiana, indianapolis, jpl, monroe lake, nasa, vegetation, wabash river, white river, spring in southeastern illinois and central indiana, free photography, free photo, free photos, free picture, free pictures, free image, free images
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