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Scientists fear catastrophe after 'mind-boggling' world record temperature jump in Antarctica (www.newshub.co.nz)

submitted 7 months ago by [email protected] to c/[email protected]

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On March 18, 2022, scientists at the Concordia research station in the east Antarctic recorded the largest spike in temperature ever recorded with the region experiencing a rise of 38.5C above its seasonal average.

Unfortunately, it's not an isolated event with an increasing number of meteorologic anomalies being reported on the continent in the past two years.

The sea level rise map that was linked is interesting, I propose Hamilton to be the new international airport since both Auckland and Wellington's will be underwater

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[–] [email protected] 9 points 7 months ago (4 children)

Admittedly I've only read one article on it and nothing further, but how does a near 40 deg jump even happen. It's honestly gone straight past mind boggling and I can't really fathom it, if that makes sense.

[–] [email protected] 9 points 7 months ago (1 children)

So when this happened it looks like the record high temp was -11.5C, whereas it's normally around -49C.

The article is light on details except:

Scientists say an increasing amount of warm and humid air from lower latitudes are being pushed into the continent, which are to blame for the dramatic temperature rise.

From what I can gather there was a heat wave in eastern Antarctica in March 2022

[–] [email protected] 4 points 7 months ago

I wonder what the timeframe were talking of here. As in, was it a heatwave for a day, month, etc.

Regardless, it's quite amazingly shocking. They should use that number as part of some campaign, it's that shocking.

[–] [email protected] 2 points 7 months ago

If you look at prehistoric temperatures there was a time before humanity where the climate did massive swings up and down. Apparently there are some feedback effects which can cause these kinds of swings.

https://reasons.org/explore/blogs/todays-new-reason-to-believe/discovery-challenges-cause-of-earth-s-climate-stability

If this happens again it's the end of not only humanity but probably most other animals and plants on the planet too.

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago)

This article illustrated it a bit.

Scientists say an increasing amount of warm and humid air from lower latitudes are being pushed into the continent, which are to blame for the dramatic temperature rise.

But this also implies the regional jet stream has been weak enough to allow that to happen.

One big main issue of climate change: exacerbation of local, regional, global meteorological / oceanographic systems.

Ice is melting, reducing albedo, allowing for more heating and heat retention (water is dark, absorbs heat).
Stronger low and high pressure systems leading to longer and more sustained regional weather extremes.
Ocean water thermal / salt systems losing stability, and causing heat transfer issues.

And on and on.