Image:CloudOpticalThickness.jpg

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Earth Cloud Optical Thickness, April 2001.

False-colour image shows a one-month composite of cloud optical thickness measured by MODIS and averaged globally for April 2001.
Optical thickness is a measure of how much solar radiation is not allowed to travel through a column of atmosphere.

Source: NASA News Archive, Release No. 01-96 (October 17, 2001)

Image courtesy MODIS Atmosphere Group, NASA GSFC.


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