Fall Colors in US Northeast
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Fall Colors in US Northeast

October 21, 2004
Every year, fall brings a wash of color to the northern states. In this true-color Terra MODIS image from October 10, 2004, the foliage around Lake Michigan and Lake Superior has turned golden brown and orange. The underlying image, acquired by the Aqua MODIS instrument on October 6, 2004, shows the same scene before the foliage changed. The change is most noticeable along Superior's southern shore, though throughout the scene the green has deepened in color. Meanwhile, a small swirl of pale blue color snakes through the waters of southern Lake Michigan. This swirl is likely formed of calcium carbonate drifting up from the lake's limestone bed. These swirls are more pronounced in warmer weather, when they form what is called a whiting event.

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