October Days in Nunavut
Previous posts described how the Northwest Passage was treacherously laden with ice this year. The image above shows how the freezing proceeded in this region over the last 16 days. Oct. 1 the CAA ice extent (Canadian Arctic Archipelago) was 609k km2, then waffled back and forth until growing sharply the last four days to 786k km2. On the right, Baffin Bay also doubled in that period up to 150k km2. On the left and bottom, Beaufort Sea added 324k km2 up to 943k km2, nearly 90% of the maximum last March.
The graph shows MASIE reporting ice extents totaling 5.96M km2 yesterday, 700k km2 below the 11 year average (2007 to 2017 inclusive). Note how 2018 started on average, then went fairly flat the first week or so, and lately is adding extent at the same rate as the average. Presently, 2018 is about five…
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