8 July 2013 regional ice chart from the Canadian Ice Service showing
the predominant ice type; first year ice is shown in green, multi-year ice is shown in brown.
10 June 2013 regional ice chart from the Canadian Ice Service showing
the predominant ice type; first year ice is shown in green, multi-year ice is shown in brown.
There has been little change in the distribution of MYI as seen in the 8 July 2013 ice chart colored by
the predominant ice type (Figure 1b).
At the beginning of June
the predominant ice type along the northern route of the Northwest Passage was mostly first - year sea ice (Figure 1, first - year ice is shown in green).