The 2017 Antarctic Sea Ice Minimum Extent

In 2017 Antarctic sea ice extent is beating all the records. All flavours of the metric are already below the minimum of all previous years in the satellite record, and it looks like there’s still some more melting left to go. Here’s the NSIDC’s 5 day averaged extent:

Chantarctic-20170226

and here’s JAXA’s 2 day averaged version:

JAXA-antarctic-feb27-2017

Finally, for the moment at least, here’s the current map of Antarctic sea ice concentration from the University of Bremen:

Bremen_Antarctic_AMSR2_20170227

 

[Edit – March 12th]

It seems highly likely that the 2017 Antarctic sea ice minimum extent has now been reached. Here’s the NSIDC 5 day averaged extent graph:

Chantarctic-20170311

The minimum extent of 2.106 million square kilometers was reached on March 3rd. Here’s the University of Bremen’s Antarctic sea ice concentration map for March 3rd:

asi-AMSR2-s6250-20170303

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