2018 vs 2012 what is the difference ? about 200,000 km2 in extent
~Because Hudson and Baffin Bay + Kara sea still have not melted completely
Kara had a late freeze up South of Novaya Zemlya in 2018, but still has some sea ice, while 2012 close to 0 one day later (selected due to clouds).
Hudson + Baffin Bay with still lots of sea ice compared to 2012, meaning the large difference is in Beaufort sea, which as we know, is flooded still with a continuous stream of sea ice. WD July 19 2018