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Saturday, August 12, 2017

Global Sea Ice Extent Sets a Record Low

Every year, global sea ice extent -- the simple sum of Arctic SIE and Antarctic SIE -- has two maxima.

The first, lower maximum, usually occurs sometime in July. The second, higher maximum, in November.

This year's first maximum is a record low:


and here's the plot of the annual first maximum:


Currently, Arctic SIE is 2nd lowest in the satellite record, and Antarctic SIE is 4th lowest. But they add such that global SIE is lowest, and it has been for most of 2017. 

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