Polar Stability: Antarctic Cold Deepens, Arctic Refuses To Melt Faster In June/July 2017

Schneefan at his excellent German climate and weather site wobleibtdieerderwaermung.de here reports that Arctic sea ice has grown in mass recently, defying the doomsday scenarios that a re-hyperventilating Al Gore has been hawking lately.

Schneefan writes that Arctic sea ice volume at the start of August at about the mean of the 2004 – 2013 values (see black line below in chart).

Source: http://ift.tt/1WN8UzG

The current ice volume is well above that seen in the previous two years, 2015 and 2016. Greenland surface mass balance also shows significantly more snow and ice this year.

Arctic summer melt slows down

Arctic sea ice area at the end of July 2017 showed an unusual levelling off (curve correction?), as indicated by the red curve inside the black circle in the following chart and thus shows a far less likelihood of setting a new low, which a number of experts had been speculating earlier this year.

Source: http://ift.tt/1rJAvVu

Another point is central Arctic sea ice extent, which in 2017 was at the highest July level in 2017 seen in the past 5 years, Schneefan points out:

Source: http://ift.tt/2ffj5zz

After a mild winter, Arctic temperatures north of 80°N latitude have been below normal since April, according to data and he chart by by the Danish Meteorological Institute (DMI) below.

With this development in mind, Schneefan writes that Arctic sea ice extent is virtually unchanged since 2006/2007, and:

There is nothing to the almost ice-free Arctic projections by 2016 at the latest and the ridiculous prognoses made by Al Gore and Peter Wadhams!”

2-m surface temperature satellite data of Antarctica in the following chart showed a sub-cooled South Pole in June, 2017 (left) and also in July 2017 (right):

South polar temperature anomaly for June (left) and July (right) 2017 with respect to the WMO 1981-2010 mean. The circle indicates the area of the Larsen C Ice Shelf where a large chunk of ice broke off due to calving recently. Source: http://ift.tt/2aXzeBH.

 

via NoTricksZone

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August 4, 2017 at 10:08AM

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