Danish Meteorological Institute Arctic Sea Ice Records
When there is persistent year-round ice at the poles, we are technically in an ice age, and have been for 2.58 million years. (Or 34, if you use the definition of ice at one pole.)
What is often colloquially called an “ice age”, when the ice sheets spread south and cover large parts of the continents, is properly a “glaciation” and the relatively balmy and livable interval we are currently enjoying, the Holocene, is called an “interglacial”.
And long may it last, because the previous four interglacials were shorter than this one, albeit warmer. But wait, you say, hasn’t the Arctic ice all melted?
Nope. It builds up until April, partially melts back every summer and reaches a minimum around September, then rebounds again in the winter.
Which is not surprising since winter temperatures in the Arctic are usually in the range of -20C to -40C. And while the summer melt has led to lower ice coverage than there used to be, the minimum hasn’t changed much since 2012.
How do we know? We looked it up.
The data are available at the Danish Meteorological Institute website. The sea ice volume record looks like this:
Even at its lowest there is still lots of ice. (If you want to see a visualization of the September sea ice minimum since 1979 click here.)
There was clearly a drop in the ice volume from around 2004 to 2012, that led a lot of people to extrapolate in a panic and declare the North Pole would be ice free by 2016 or 2018 or 2020.
And yet the process leveled out and the ice has stayed around. We fearlessly predict that by the end of the winter (April) Arctic sea ice will be well over 20,000 cubic km.
And we wouldn’t be surprised if it begins edging up towards 25,000 again, but we’ll have to wait and see.
And when the time comes, we’ll #Lookitup.
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jchr12
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2.58m years, eh? Evolutionists will love you for that, but no, that theory is dead & buried.
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Jerry Krause
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Hi People at Climate Discussion Nexus (CDN) and any PSI Readers,
CDN has drawn our attention to unquestionablely valuable data and there has been one frivolous comment.
This comment is to suggest that which the Danish have begun with their data could be first compared with a review of atmospheric weather data of the same time period, due to the winter Arctic atmosphere which periodically drains southward across the plains of Canada to borders of the Dakota’s and southward
to the Gulf of Mexico and even southeastward to Florida. It would seem very useful to see actual data being considered.
Have a good day
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Jerry Krause
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Hi People at Climate Discussion Nexus (CDN) and any PSI Readers,
Another river which drains the Arctic water and atmosphere that I have seldom read about concerning the Arctic Ocean is the Yukon. For a FACT IS most of the Asia continent drains its water and atmosphere into the Arctic during the winter.
Have a good day
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Jerry Krause
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Hi People at Climate Discussion Nexus (CDN) and any PSI Readers,
What I have pointed to is obvious; however, I have learned by experience that “the moms obvious is the most difficult to see.”
Have a good day
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