State of Polar Sea Ice – January 2013: Arctic Below and Antarctic Above Normal

By: Tuesday January 15, 2013 3:56 pm

Global polar sea ice area in early January 2013 remains below climatological normal conditions (1979-2009), but has improved in the past month. Antarctic sea ice loss is occurring at a climatological normal rate. Arctic sea ice gain is slightly more rapid than normal, but we should expect this given the record low extent that occurred in September 2012. Polar sea ice recovered from an extensive deficit of -2.5 million sq. km. area late last year to a -500,000 sq. km. anomaly within the last week.


State of the Poles – Mid-September 2012: Record Low Arctic Ice Extent; Antarctic Ice Above Climatological Normal

By: Sunday September 23, 2012 5:00 pm

The state of global polar sea ice area in mid-September 2012 remains significantly below climatological normal conditions (1979-2009). Arctic sea ice loss is solely responsible for this condition. In fact, if Antarctic sea ice were closer to its normal value, the global area would be much lower than it is today. Arctic sea ice melted quickly in August and the first half of September because it was thinner than usual and winds helped push ice out of the Arctic where it could melt at lower latitudes; Antarctic sea ice has refrozen at a faster than normal rate during the austral winter. Polar sea ice recovered from an extensive deficit of -2 million sq. km. area late last year to a +750,000 sq. km. anomaly in March 2012 before falling back to a -2.2 million sq. km. deficit earlier this month.

State of Polar Sea Ice: Arctic Near Record Low; Antarctic Normal

By: Tuesday June 7, 2011 1:56 pm

Sea ice in the Arctic continues to track significantly below average, with the 3rd lowest readings for the month in the modern era. Antarctic sea ice recovered somewhat more quickly to normal conditions than was the case the month before. Global sea ice area has therefore remained near historical lows for an extended period of time this year. Within the last month, global sea ice area has finally improved from the 1 million sq. km. deficit from climatological conditions that characterized the first four months of 2011. To help put this in context, only 2006 and 2007 saw similar conditions. In 2007, the Arctic (and global) sea ice area fell to its lowest extent in modern history.

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