Jacqueline Halpin

ACEAS Research Forum 2025: a national gathering of Antarctic science excellence - ACEAS More than 140 researchers from across Australia gathered in Hobart last week for the Australian Centre for Excellence in Antarctic Science (ACEAS) Research Forum, held from 5 to 7 November at the Univ...

🌍 Last week, 140+ Antarctic scientists came together in #Hobart for our ACEAS Research Forum 2025 to share the latest research and insights about the climate risks emerging from #Antarctica and the #SouthernOcean.

Read more: antarctic.org.au/aceas-resear...

🦠🧪 Congratulations to our biogeochemistry team on winning an Australian Research Council (ARC) Discovery Project grant to iron out wrinkles in climate models.

▶️https://aappartnership.org.au/unlocking-how-iron-shapes-ocean-life-and-climate/

@hochmuth.bsky.social @imas-utas.bsky.social @utas.edu.au

How vulnerable is East Antarctica’s ice in a warming world? 🧊🌍

Thrilled to be awarded #ARC funding with my stellar collaborators!

We will explore geological archives that record how the ice sheet reacted to past warm periods — and what that could mean for our future.
@antarcticsciaus.bsky.social

What's the future for Antarctic sea ice? Next Tuesday (11th November I'll be giving a free lunchtime talk at TMAG on @antarctic.bsky.social @imas-utas.bsky.social efforts to answer that very question. You can register here: url.au.m.mimecastprotect.com/s/UVHnCE8kD7...
#hobart #utas #antarctica

The epic story of Australia and its first peoples — like you've never seen it The story of Australia and its peoples is vast and deep. It's one you should know, but possibly one you've never been told. Well, not like this anyway.

🪨 Australia’s climate story is written in stone – and sea 🌊

This ABC Deep Time feature explores how Australia’s landscapes have shifted over millennia, shaped by rising seas and changing climates – told by First Nations voices alongside scientists, linking deep cultural memory with geological time.

Subglacial geology and palaeo flow of Pine Island Glacier from combining glacial erratics with geophysics - Communications Earth & Environment A nearly 175 Ma granite body in West Antarctica reveals ice flowed across the southern Hudson Mountains at the Last Glacial Maximum, resulting in erratics derived from local subglacial bedrock, as rev...

Ever wondered what lies beneath the fastest melting glacier in #Antarctica? Read on….

🔥New paper just out🔥led by my brilliant @bas.ac.uk colleague Tom Jordan: www.nature.com/articles/s43...
Combining #geology & #geophysics, we discovered a huge granite beneath Pine Island Glacier! 🧵 below…. 1/n
🧪❄️🥼

Ace! Look forward to reading this 👏🪨🇦🇶

Wrap your hands around a 3 billion year old piece of Antarctica! I’ll see you there 🤘

Congratulations to AAPP ice-sheet modeller Dr Chen Zhao for her recognition in the 2025 Tasmanian Tall Poppy Science Awards.

▶️ www.utas.edu.au/about/news-a...

@utas.edu.au @imas-utas.bsky.social

❄️ A landmark new study has revealed that glaciers on Australia’s remote sub-Antarctic Heard Island are shrinking at an accelerating rate due to rising temperatures and climate change.
tc.copernicus.org/articles/19/...
@andrewmackintosh.bsky.social
@heardislandgov.bsky.social
@arcsaef.bsky.social

Here for the ice cold diplomacy 🐧

Extensive fluvial surfaces at the East Antarctic margin have modulated ice-sheet evolution - Nature Geoscience Extensive flat surfaces observed beneath the East Antarctic Ice Sheet margin were formed by fluvial erosion and have modulated the ice-sheet response to climate change, according to an analysis of rad...

Great work by our colleagues Stewart Jamieson and Guy Paxman: "We have been using satellite data to map an ancient river landscape beneath the East Antarctic Ice Sheet:. The landscape has been frozen in time for up to 34 million years." ⚒️🧪

www.nature.com/articles/s41...

Introducing Dr Devsamridhi Arora - ACEAS Introducing Dr Devsamridhi Arora ACEAS researchers recently welcomed a special guest from India’s Antarctic science community. Dr Devsamridhi Arora was here at IMAS/UTAS, Hobart from the University of...

"I am optimistic about fostering stronger India–Australia collaborations in Antarctic science and look forward to more opportunities like this in the future."

- 2025 @scar-antarctic.bsky.social INSTANT Fellow Dr Devsamridhi Arora on her recent @utas.edu.au visit ⬇️

antarctic.org.au/introducing-...

Hot on the heels of Jeremy’s first PhD paper where we discovered evidence of Gondwanan continental crust underneath Heard Island: www.sciencedirect.com/science/arti...

Discovery of the William's Ridge and Rig Seismic Seamount Microcontinents, Kerguelen Plateau: Signatures of a Fragmented Rifted Margin First detailed characterization of basement geology at William's Ridge and Rig Seismic Seamount Microcontinents underly plume-derived volcanic rocks and sediments at William's Ridge and Rig Seism...

Discovery of microcontinents in the Kerguelen Plateau region of the Southern Ocean! 🌊 🌏

New OA research led by @imas-utas.bsky.social @antarcticsciaus.bsky.social PhD student Jeremy Asimus out now:
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Excited to be amongst geo friends at Uni Adelaide to give a talk on Antarctic mountains & learn from some of the best 🤩

Bright red parrot with a green lawn behind

the only good king is the king parrot 👑

Onset of strong Iceland-Scotland overflow water 3.6 million years ago - Nature Communications This study examines the history of North Atlantic deep-water masses, as recorded in marine sediments. Major lithological changes and increased rate of deposition reveal that stronger deep-ocean circul...

Very proud of my #IODP shipmates for spearheading this amazing paper on our new data from #Exp395.
We are looking at the onset of deepwater formation in the North Atlantic and its relation to Greenland‘s ice sheet.
⚒️🧪⛰️🪨🚢🧊
www.nature.com/articles/s41...

Antarctica has a huge, completely hidden mountain range. New data reveals its birth over 500 million years ago The mysterious ‘ghost mountains’ – buried beneath kilometres of Antarctic ice – have puzzled scientists for decades.

New study of an ancient collision zone reveals origins of enormous mountain range, hidden beneath the East Antarctic ice sheet and central to Earth's tectonic history ♨️

- from @jaxhalpin.bsky.social and Nathan Daczko

@imas-utas.bsky.social | Macquarie Uni

theconversation.com/antarctica-h...

Antarctica has a huge, completely hidden mountain range. New data reveals its birth over 500 million years ago The mysterious ‘ghost mountains’ – buried beneath kilometres of Antarctic ice – have puzzled scientists for decades.

🏔️ "The Gamburtsev Mountains are similar in scale and shape to the European Alps. But we can’t see them because the high alpine peaks and deep glacial valleys are entombed beneath kilometres of ice." — @jaxhalpin.bsky.social @utas.edu.au & Nathan Daczko

▶️ theconversation.com/antarctica-h...

YouTube video by Australian Antarctic Program Partnership Warming ocean vs Antarctic ice

🌊 𝙒𝙖𝙧𝙢𝙞𝙣𝙜 𝙤𝙘𝙚𝙖𝙣 𝙫𝙨 𝘼𝙣𝙩𝙖𝙧𝙘𝙩𝙞𝙘 𝙞𝙘𝙚

Spectacular vision of the Denman Glacier and Shackleton Ice Shelf, from the current #science voyage of icebreaker RSV Nuyina to East #Antarctica.

#DMV video ▶️ youtu.be/H92Tj3gZCqg

@antarcticsciaus.bsky.social | @utas.edu.au | @arcsaef.bsky.social

Revealed in a rock dredge - ACEAS Revealed in a rock dredge By Jo Whittaker Anticipation was high as the first dredge of the Denman Marine Voyage was deployed to a water depth of 2700 metres on the steep eastern slope of the Eastern B...

The first rock dredges of the #DMV have delivered - and many rocks found seem to have come from beneath the vast Denman Glacier.

There are signs the region might be a particularly warm area geothermally, and this can impact on the base, writes Jo Whittaker ⬇️ #blog

antarctic.org.au/revealed-in-...

Scientists collect unique sea creatures during voyage to East Antarctica From giant sea spiders to "sea pigs" and "sea butterflies" — analysing the rich biodiversity in Antarctica has thrilled researchers studying the impacts of climate change.

On the edge of #Antarctica, 60 scientists aboard RSV Nuyina are researching the impact of climate change on the fastest-melting glacier in the eastern part of the icy continent — ABC News with @utas.edu.au, @arcsaef.bsky.social, AAD and @antarcticsciaus.bsky.social

▶️ www.abc.net.au/news/2025-04...

Look how happy Taryn is with her seafloor sediment!! ⚒️🌊🧪

It holds keys to understanding past climate and ice sheet behaviour in the Denman Glacier region of Antarctica

Antarctic: Sea-Ice Concentration/Extent/Thickness My visualizations: Arctic Climate Seasonality and Variability Arctic Sea Ice Extent and Concentration Arctic Sea Ice Volume and Thickness Arctic Temperatures Antarctic Sea Ice Extent and Concentrat…

🧪🌊🧵 Despite having his job at NOAA terminated @zacklabe.com has still brought his visualisations that show the alarming recent trend in Antarctic sea-ice extent up to date.
zacklabe.com/antarctic-se...
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Follow the #DMV journey south with the RSV Nuyina voyage tracker map and icebreaker webcams ⬇️

www.antarctica.gov.au/antarctic-op...

@antarctic.bsky.social | @arcsaef.bsky.social | AAD

YouTube video by Flight of the Conchords Too Many Dicks On The Dance Floor - Flight Of The Conchords (Lyrics)

Sums up world politics. Thank god for the kiwis
youtu.be/xk1kwfK848Y

Two more sleeps until departure day! Here's most of the 47 scientists from AAPP @utas.edu.au & @antarcticsciaus.bsky.social leaving on the two-month Denman Marine Voyage (5000km south to East #Antarctica) with AAD and @arcsaef.bsky.social this Friday.

🌊 Follow them at aappartnership.org.au/DMV/

Join scientists from @utas.edu.au and @antarcticsciaus.bsky.social in East #Antarctica as they plumb the depths of the ocean under an ice shelf with a power tool, a long drill, lots of line—and plenty of stamina.