The state of Arctic sea ice is roughly in the same condition as it was a in 2012

The state of Arctic sea ice is roughly in the same condition as it was a in 2012

An examination of Arctic sea 


ice extent – mid-June, 2020

Here are the slides from the video



Arctic sea ice extent

Air temperatures at the North Pole


It is raining in the Arctic

Sea ice comparison from NASA Worldview


June 14, 2020

June 14, 2012

August 14, 2012

Compare the state of the ice with 2012.



August 14, 2019

The biggest clue to the state of Arctic ice is not just sea ice extent but sea ice volume or thickness.


June 15, 2020

June 11, 2018

The prognoses one might make may be, in part, determined by what data set you use.


This shows sea ice 2-4 meters thick, which is quite different from the US Navy site I usually use.I have found these figures are not well borne out by satellite pictures.


Sea ice concentration

June, 14, 2020

Sea ice concentration – from NASA Worldview


June 14, 2020

June 14, 2019

.

June 13, 2012

Another important indicator of the state of sea ice is the level of salinity, which is particularly high in the Atlantic sector.


Finally, there are signs of contradictions between data sets, if not an altering of data

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