In this image, the asphalt roads, sidewalks, and patios absorb heat throughout the day and continue to radiate heat into the evening and morning hours when the surrounding areas cool off, therefore they appear lighter in color. Vegetation appears dark because it cools off in the evening hours. Storage sheds, and cars appear darker due to the fact that they are made of materials that cool down. With the exception of cars with a lighter spot in the front, this occurs due to the heat of the engine under the hood. Bright spots that appear on the rooftops of homes can be caused by possible heating units for the home, or steam vents on the roof.
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