Comparison of sea-ice concentration in 2017 and 2019

According to a recent article, the sea-ice in the Nares Strait has broken up months ahead of schedule. It is stated that this also happened in 2017, which lead to favorable conditions for mooring deployment in the Arctic Ocean.

Below, a side-by-side comparison between the sea-ice concetration plots from 2017 and 2019 is given.