November 2015 saw slightly more sea ice volume growth than November 2013, and so the difference with that first rebound year is still minimal (140 km3 more). The difference with second rebound year 2014, however, has increased some more, and 2015 has 1315 km3 less SIV than 2014 around this time. Because 2007 saw a lot of ice growth during November, 2015 is now lower than all the pre-2010 years. The difference with 2011 has also gone down from 1478 to 860 km3, as has the difference with 2012, down from 2146 to 1861 km3.
The differences are slightly clearer on Wipneus' PIOMAS volume graph:
Wipneus also left behind a treat on the Arctic Sea Ice Forum, a collage of how current volume distribution stacks up (according to the PIOMAS model), compared to other years. Red means the ice is thicker now than it was in that particular year, blue means the opposite:
This comparison shows that the ice in the 'safe haven' north of Greenland and the Canadian Archipelago is now thicker than it has been in the past decade. Maybe at the end of the freezing season measurements taken as part of the annual Ice Bridge operation can tell us more about that.
The trend line on the PIOMAS sea ice volume anomaly graph has creeped up some more, still above the linear trend:
As far as PICT is concerned (my crude average sea ice thickness calculation, derived by dividing PIOMAS volume numbers with Cryosphere Today sea ice area numbers), the 2015 trend line is maintaining its position relative to the other trend lines:
And as is often the case, the same goes for the Polar Science Center's thickness graph:
No really big changes so far, except that 2015 is now definitely lower than all pre-2010 years, and the difference with the post-2010 years has become smaller again. This difference could decrease some more in weeks to come, as most post-2010 years (and 2007) saw a relatively large volume increase during December. If things keep up like this, spring 2016 could start out with a similar amount of volume as the post-2010 years (and a lot less than 2015 at the start of the melting season). But it's much too early to speculate about that now. Sorry, couldn't help myself.