~The snow conundrum is suggested
WE look back Novaya Zemlya area wide open water mid October 2017
Then we take NOAA daily composites and calculate surface temperature anomalies:
As I recall, it was much warmer most of winter North Central Russia Arctic Ocean area , mostly more than +6 C warmer, mean temperatures would have been higher was it not until end of winter cooling.
Yet the ice is supposedly substantially thicker, I wonder what would do that?
But more snow of course, although there are no measurements for wide areas of the Arctic, precipitable Daily Composites water gives an idea. There is most likely more snow on the sea ice in the areas where the sea ice is proposed to be thicker, it would of course delay its melting, but also likely mask its thickness.
A closer June 8 2018 look at the same ice area reveals broken up ice pans, many areas held together by the fragile glue of very thin sea ice caused by a late winter freeze up...
WD June 8,2018