As always, (modeled) sea ice volume has also hit its minimum in September: 6810 km3. This number is comparable to that of 2009, and well above the lowest three minima on record (2010: 4582 km3, 2011: 4302 km3, 2012: 3673 km3). This year's minimum is almost 1500 km3 higher than last year's, which itself was more than 1700 km3 higher than the 2012 record.
Like I wrote last month:
It was always clear that the Arctic could be very volatile, but this swing is huge and shows what two consecutive melting seasons with conditions that are relatively good for ice retention (2013 was cold and cloudy, 2014 cold and cloudy at the start, followed by little movement) can mean for the ice pack.
The PIOMAS sea ice volume graph produced by Wipneus shows the differences even more clearly, 2014 is right up there with 2007, 2008 and 2009: