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Arctic Sea Ice Rebounding?

Ron Clutz, Science Matters

In May Arctic ice continues to be more extensive than recently.  As previously reported, central and Atlantic sea ice is above decadal averages.

The image below shows surprising growth since day 120 (April 30), with a pause the last few days.

Things are different on the Pacific side where Bering in particular has melted ahead of schedule, and now extending in Chuchi sea, inside the actual Arctic basin.

The graph below shows how in recent days 2017 NH ice extents have grown above average, even including the exceptionally low amounts of ice in the Pacific, Bering in particular.

Note that as of day 138, yesterday, 2017 NH ice was ~200k km2 above average, 300k above SII estimates, 600k above 2007 and nearly 800k km2 more than last year.

The graph below shows Arctic ice excluding the Pacific seas of Bering and Okhotsk.  This provides an even more dramatic view of this years ice extents.  Mid April Arctic ice was average, and look what has happened since May began on day 121.  There was a drop and a rise, with a current surplus of 450k km2.

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