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Wednesday, September 9, 2015

Shades of Blue on the Greenland Ice Sheet

From NASA's Earth Observatory:




Shades of Blue on the Greenland Ice Sheet
When it comes to the blue hue of meltwater lakes, darker means deeper; satellites can help scientists discover just how deep. Read more at http://earthobservatory.nasa.gov/IOTD/view.php?id=86564&src=fb

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