The three images above all show different ways in which a remotely sensed image can be viewed in order to examine different features of interest. In this image showing part of the coast of Ecuador, a feature that seems to be fields is visible to the lower right of the island. Each image shows the same feature, but what each band combination highlights is different. In the true color image, the colors are what would be "expected" - vegetation is green, bare earth is grey, urban areas are tan. The smaller rivers and streams show variation in depth based on the lightness or darkness of the brown and grey hues. When the band combination is changed to the configuration in the upper right image, much of the vegetation stands out as bright green, but several areas, including the focus feature, show up as blue. This highlights the moisture content of various elements in the image, including all rivers and streams, as well as areas of agriculture that are moist. The third image shows Layer 6 - the Thermal band, in one color ramp. The feature stands out as both an area of vegetation, and an area of relatively high moisture content because of the radiant energy produced by water in comparison to other substances.
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