Greenland Subsun ~ Imaged by Stefan Kuna.  ©Stefan Kuna, shown with permission.

The subsun is a direct reflection of the sun from millions of plate shaped ice crystals in a thin lower cloud layer.

It followed the aircraft as it passed over SW Greenland .   Below are glaciers flowing from the Greenland ice cap. The cap is second only to Antarctica in size and in places is up to 3km (1.8 mile) thick.


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