Arctic Ice Vulnerable In Summer 2013 vs. Record Ice Growth

We know Bush and the Repugs don’t do the numbers as they are neither mathematicians nor scientists but are believers and put their trust in providence. Has worked out well for the mighty and wealthy. Ask Rmoney.

Republican “Real Science” – Arctic Ice Growth Blows Away All Records

Arctic ice area has increased by 10.5 million km^2 since mid-September 2012. The press corpse continues to report this event as record ice loss. Leading experts say that the Arctic will be ice-free in a few months, or sooner.

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Arctic ice in retreat (BBC - year 2007)

Northwest Passage – Global Warming is Opening Canada’s Arctic

Ice Breaking News: This Is Your 2013 Arctic Freezing Season On Crack

(ThinkProgress) – The sea ice cap on top of the Arctic Ocean is often imagined to be a monolithic, continuous sheet of ice floating on water. A closer look quickly shows it is rather a collection of larger and smaller pieces of sea ice. Of course, we have all seen the images of ice floes separated by open water during summer, but even during winter the ice pack gets fractured, leading to leads that quickly freeze over again.

Cont’d below the fold …

Strangely enough those who deny the reality and potential consequences of AGW still like to abuse this event and claim it somehow proves that nothing unusual is happening up North. It doesn’t prove or disprove anything, as cracks and leads have always been a normal feature of the Arctic sea ice pack. But `normal’ is a word that has become less and less applicable to the Arctic in recent times. The 2012 melting season was the latest climax in a series of record years, that showed conclusively that the ice is thinner than it has been for a very long time.

We don’t even have to await the coming melting season to see this re-confirmed. We can see it right now, at the end of the freezing season. Like I just said, cracks are a regular feature of the Arctic, but this video below, made by NOAA’s Visualization Lab, shows a cracking event that is very rare, if not unique:

Ice, however thin, doesn’t fracture by itself. It needs wind to pull the ice pack apart. This wind was provided by a big, intense and stubborn high pressure area that started about a month ago and kicked the Beaufort Gyre into action, which is an ocean circulation pattern that transports the ice in a clockwise fashion from the North American coast towards Siberia.

CryoSat-2 satellite redraws Arctic sea-ice thickness map

Annual maximum Arctic sea-ice extent reached

On March 15, 2013, Arctic sea ice extent appears to have reached its annual maximum extent, marking the beginning of the sea ice melt season. This year’s maximum extent was the sixth lowest in the satellite record. NSIDC will release a detailed analysis of the 2012 to 2013 winter sea ice conditions in early April.

Arctic sea ice reached its maximum extent for the year, at 15.13 million square kilometers (5.84 million square miles). The maximum extent was 733,000 square kilometers (283,000 square miles) below the 1979 to 2000 average of 15.86 million square kilometers (6.12 million square miles). The maximum occurred five days later than the 1979 to 2000 average date of March 10. The date of the maximum has varied considerably over the years, with the earliest maximum in the satellite record occurring as early as February 24 in 1996 and as late as April 2 in 2010.

This year’s maximum ice extent was the sixth lowest in the satellite record. The lowest maximum extent occurred in 2011. The ten lowest maximums in the satellite record have occurred in the last ten years, 2004 to 2013.

Author: Oui

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