Antarctic sea ice extent from the NSIDC:
Regional Antarctic sea ice extent from ArctischePinguin:
Regional Antarctic sea ice area from ArctischePinguin:
SMOS thickness from the University of Bremen:
Antarctic Sea Ice Concentration
Here too is Wipneus‘ global sea ice area graph. The one that caused a Twitstorm and became The Guardian’s 11th Key Science Moment of 2016:
plus the long term anomaly:
See also Arctic sea ice graphs page, our Arctic ice mass balance buoys overview page, our Arctic sea ice images page and our Arctic sea ice videos page.
Constructive technical criticism is welcome on the introductory blog post. For discussions about interpreting the information please comment on the “About Our Arctic Sea Ice Resources” page.