Sunday, 27 January 2019

The mixing of fresh and saline water - a major positive feedback loop in the Arctic

Some things are worth repeating until people get this important message.In fact, I can't think of anything MORE important than this part from , perhaps, the methane rising to the surface above Siberia.

See from the map just how close Novaya Zemlya, where this is happening, is.

'Tipping point' risk for Arctic hotspot


I am reading this article from the BBC because it is so important as it confirms the conclusions Margo and I have reached by looking at solid data on the Arctic.



A rapid climate shift under way in the Barents Sea could spread to other Arctic regions, scientists warn.

The Barents Sea is said to be at a tipping point, changing from an Arctic climate to an Atlantic climate as the water gets warmer.

In what may be a first the BBC I acknowledging a positive feedback loop

In what’s known as a feedback loop - the more the layers mix, the warmer the surface gets. And the warmer the surface gets, the more the waters mix.

However, they place the problem a whole decade away

So it’s now only a matter of time, the researchers say, before this section of the Arctic effectively becomes part of the Atlantic. It could happen in as little as a decade, they warn

Here is the Barents Sea. I got it mixed up with the Barents Strait near Alaska


We are in high-winter in the Arctic and you can see that the Barents Sea is ice-free - not in a decade but right now.


Sea temperatures NOW - not in a decade are up to 0 deg C with a couple of warm areas that are up to 16 deg C.

Compare that with 17 deg. C in Cook Strait, New Zealand in SUMMER, in the context of a marine heatwave!


The following shows the high degree of mixing of salt and fresh water in the Arctic - about 35% for the Barents Sea.





2 comments:

  1. Awesome work Robin, added to the ever growing comments section of my blog post on tipping points and feedback loops
    https://kevinhester.live/2016/08/10/climate-change-beyond-the-climate-tipping-point/comment-page-1/#comment-508

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  2. Earlier than expected - summer 2019 European's will wake up anxiously... thanks for putting the pics together.

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