Seeing clearly despite the clouds

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Clearly cloudy: Using the ratio method (right) clears up the satellite view (left) of a partly cloudy sky. Credit: PNNL
Clearly cloudy: Using the ratio method (right) clears up the satellite view (left) of a partly cloudy sky. Credit: PNNL

Satellites taking atmospheric measurements might now be able to see blue skies as clearly as optimists do. Researchers have found a way to reduce cloud-induced glare when satellites measure blue skies on cloudy days, by as much as ten-fold in some cases. The result might lead to more accurate estimates of the amount of sunlight penetrating the atmosphere. Because clouds represent one of the largest areas of uncertainty, eventually this could lead to improved climate models.


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