NSIDC shows no ice north of Barrow, AK.
N_20180817_extn_hires_v3.0.png (1461×1740)
But visible satellite imagery shows lots of ice (red) there.
Unlike the fraudsters at NSIDC, the Danish Meteorological Institute correctly shows the ice.
I’ve also observed that NSIDC shows the edge of the ice consistently further back than satellite imagery shows. But when small fractions of a percent make for large differences in propaganda value, NSIDC consistently sides with the needs of propagandists.