Sea Ice Volume is calculated using the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, Zhang and Rothrock, 2003) developed at APL/PSC. Watch the video now
Sea Ice Decline 1979-2012
Arctic Sea Ice Volume Anomaly
Polar Science Center: Monthly averaged ice volume for September 2012 was 3,400 km3 This value is 72% lower than the mean over this period, 80% lower than the maximum in 1979, and 2.0 standard deviations below the 1979-2011 trend. September ice volume was about 800 km3 less than the prior minimum on September 10 2011 though this difference is within the estimated uncertainty of PIOMAS.