The giant hole (polynia) that has opened up in Antarctica’s Weddell sea.At L-band, the difference between the emission of water (cold, blue colors) and frozen surface (higher TB, yellow to red) is important so that this phenomenon is easily captured by SMOS, and specially this one that is particularly large.These images are averages over 4 days, starting July 1-4 2107 to October 9-13Complementary info can be found here :http://robinwestenra.blogspot.fr/2017/10/a-large-polynia-discovered-in-antarctica.html