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 Antarctic Snow Dunes1075 viewsExtensive snow dunes wrinkle the surface of large parts of East and West Antarctica. The dunes are up to 100 kilometers long and separated by 2 to 4 kilometers, but only a few meters high. Comparison of modern satellite images with images acquired four decades earlier reveals that the dunes are nearly motionless.
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 826 viewsWood braces stabilize a snow pit on the East Antarctic Ice Sheet.
Image Credit: Ted Scambos, NSIDC
   
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