Jacqueline Halpin

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...
1/2

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.

Mt Barr-Smith? That was an epic day 🙌

I dropped my sledge hammer in Doubtful Sound if you happen to find it 😆

Hey snap! 🤩

First post on BlueSky to mark the end of my Antarctic fieldwork in Queen Maud Land working with @andrewmackintosh.bsky.social and some other wonderful scientists at @arcsaef.bsky.social. Overall, trip was hugely successful, with some exciting science to come. 1/4

Melting at the fringes - ACEAS Melting at the fringes When it comes to melting ice, the process in the oceans isn’t as straightforward as it is in a glass of water. In a new review, scientists reveal the multitude of ocean processe...

Melting at the fringes: the many ocean processes contributing to ice shelf melt revealed 🧊

Important new review from Dr Madi Rosevear and colleagues shines a light on how these processes will shape future climate and sea level rise.

University of Melbourne | AAD

antarctic.org.au/melting-at-t...

Geologists with Antarctic rock samples

Christmas might be over, but the gifts keep coming for the @antarcticsciaus.bsky.social geo team! 🪨🎁

Today @icylava.bsky.social took delivery of new rock samples from Gaussberg - East Antarctica’s only exposed volcano 🌋 (even geophysicists were excited, right @hochmuth.bsky.social 😉) ⚒️🧪

Fingers crossed 🤞!!

A23a has finally escaped the vortex! 🏊‍♀️🌀

The biggest iceberg in the world is on the move again after a casual half-year sabbatical spent spinning in circles.

Our @magic.bas.ac.uk colleagues have illustrated A23's super circuitous 2024 journey via satellite imagery ⬇️

www.bas.ac.uk/media-post/w...