Greenland’s glaciers are losing ice at an unprecedented pace 🇬🇱
The bad news: vast quantities of freshwater entering the North Atlantic could disrupt major ocean currents - changing ocean ecosystems and European climate.
The good news: this GIANT collaboration is getting to the bottom of it, fast ⬇
British Antarctic Survey 🐧
Exciting paper answering a question we have been asking for years:
Why is the ocean-sea ice model ACCESS-OM2-01 simulating the formation of Dense Shelf Water around Antarctica so well?
More in this paper by colleagues from ANU and @antarcticsciaus.bsky.social
🌊🇦🇶
🚢 Can you imagine submitting your PhD thesis from the deck of Australia’s icebreaker en route to Antarctica?
That’s exactly what @christinaocean.bsky.social (UNSW) did earlier this year.
Explore this beautiful multimedia story from UNSW 👉 news.unsw.edu.au/en/breaking-...
@ccrc.bsky.social
A new paper led by @christinaocean.bsky.social investigates the sensitivity of Antarctic Bottom Water (AABW) formation and export to horizontal model resolution
👉 formation of dense shelf waters decrease while the export of AABW increases with finer model resolution
doi.org/10.1029/2024...
Our paper on a new ice shelf basal melt parameterisation is out! tc.copernicus.org/articles/19/...
Small-scale processes in the ocean drive ice shelf basal melt, and large-scale ocean models can’t resolve these processes. Therefore, models use melt parameterisations, but these can still be improved.
Video
Christina Schmidt
Australian Centre for Excellence in Antarctic Science (ACEAS)
This week I started a new chapter @bas.ac.uk 🎉
As part of the GIANT project I will be modelling how Greenland’s glaciers are melting 🧊🌊 I am excited to see how this multi-disciplinary approach will improve our understanding of such an important topic!
www.bas.ac.uk/project/gian...
I am thrilled to share this multimedia story highlighting my experience on the #Denman Marine Voyage earlier this year, alongside the inspiring work of 3 other Antarctic scientists:
news.unsw.edu.au/en/breaking-...
✍️ @melissalyne.bsky.social
🌊🇦🇶 #DMV @antarcticsciaus.bsky.social @ccrc.bsky.social
Abstract. Ocean-driven basal melting of Antarctic ice shelves is an important process that affects the Antarctic Ice Sheet, global climate and sea level. Basal melting is controlled by small-scale pro...
tc.copernicus.org
From unique wildlife to resilient microbes, world-changing climate dynamics to untapped biotechnological potential – four UNSW scientists outline what makes Antarctica a laboratory like no other.
We figured out a cheap-ish way to make ocean models create Dense Shelf Waters (DSW) on the surface of the Antarctic continental shelf! How?
Fast answer: Ocean surface cells thinner than 1 m!
Long answer on the paper: dx.doi.org/10.1029/2024...
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More info in the thread
From unique wildlife to resilient microbes, world-changing climate dynamics to untapped biotechnological potential – four UNSW scientists outline what makes Antarctica a laboratory like no other.
Dense Shelf Water formation decreases when the model resolution is refined from 1/10° to 1/20° to 1/40° due to shelf freshening Antarctic Bottom Water export increases with finer model resolution...
The ability of ocean models with depth coordinates to form Antarctic Dense Shelf Water (DSW) depends on their surface vertical resolution
Deeper surface cells shift the direction of surface Ekman...
