Persistent August Arctic Ice

Science Matters

Click on image to enlarge.

The image above shows ice extents for yesterday, day 239, from 2007 to 2017.  Particularly interesting is the variation in the CAA (Canadian Arctic  Archipelago), crucial for the Northwest Passage.  (The region is located just north of the word “Sea” in gold.)  Note that 2016 was a fine year for cruising with the passage completely open at this date.  That was not the case in 2014, and this year also has places frozen solid.

Crystal Serenity is going through the Northwest Passage again this year, having left Seward Alaska on Aug. 15, 2017.  She arrives at Cambridge Bay today, having traveled in the wake of icebreaker RRS Ernest Shackleton.  The next part of the voyage could be challenging.

The graph of August NH ice extents shows 2017 has moved above the decadal average in recent days. (Ten-year average is for 2007 to 2016 inclusive)

This…

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