Alix Post

❄️ 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

New #DEACoastlines annual shoreline data for 2024 is now live! 🌊🛰️🎉

2024 was a relatively stable year for coastal change across Australia, with mostly moderate and balanced rates of growth and retreat across our coastline.

Interactive map: maps.dea.ga.gov.au/story/DEACoa...

Support the Polar Geospatial Survey and their amazing Polar DEM production by taking their survey.

Looking forward to seeing what the sediment team uncover about past changes in the Denman Glacier system.

Offshore to the west of the Denman Glacier, the Kasten core sediment tubes keep on coming - and this one, retrieved from the seafloor this week, is a keeper #DMV

Taryn Noble (@utas.edu.au) leads the research team to examine its many interesting layers ⬇️

📷: Katharina Hochmuth, Delphine Lannuzel

Great work by the oceanography team on the Denman Marine voyage #DMV

Moorings: Sentinels to monitor ocean heat when we’re not there - AAPP Like weather stations for the sea, the Denman Marine Voyage has installed three moorings off the ice shelf to monitor ocean heat

🌊 Like weather stations for the sea, the Denman Marine Voyage #DMV has installed three moorings off the ice shelf in East #Antarctica, to monitor ocean heat for the next few years before we come back to get them.

From RSV Nuyina ▶️ aappartnership.org.au/moorings-sen...

📸 P Harmsen, L West/AAD

Great to be able to track Australia’s icebreaker Nuyina from space while it’shard at work off the Shackleton Ice Shelf!

Linda has made such amazing contributions in the field of ancient DNA from Antarctic sediments. Very well-deserved award!

A screenshot of https://www.polarview.aq/antarctic showing the footprints of Sentinel 1 and Radarsat Constellation Mission (RCM) products in turquoise and yellow colours respectively.

A screenshot of https://www.icelogistics.info/antarctic showing a Sentinel-1C image of the Brunt Ice Shelf displayed on the map viewer. Sea ice is dark black and hazy grey shades, and the ice shelf is brighter grey and white. Details of the images can be seen in a pop up.

🎉 Imagery from the newly launched Sentinel-1C Copernicus satellite is now accessible via Polar View www.polarview.aq and the Ice Logistics Portal www.icelogistics.info/antarctic?ce...! This addition significantly increases the repeatability of SAR observations in the Polar Regions 🛰️

Voyage of discovery in modern times - ACEAS Voyage of discovery in modern times By Craig Johnson It’s -22 °C chill factor outside, the water is -1.75 °C, and for the last half-hour the ship has been manoeuvring to avoid ice bergs. I’m cosy in s...

What does the deep seafloor in a previously-uncharted canyon off the edge of the continental shelf in eastern Antarctica look like?

Craig Johnson captures the wonder, awe and sheer joy of finding out by using a deep sea camera tow, in our latest #DMV #blog post ⬇️

antarctic.org.au/voyage-of-di...

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...

Denman Glacier, how deep is your continental shelf? - ACEAS Denman Glacier, how deep is your continental shelf? By Katharina Hochmuth The Denman Marine Voyage is not only the first dedicated marine science voyage on our new home the RSV Nuyina, but we are also...

What lies beneath 🌊

Dramatically-reduced sea ice cover in front of the tongue of the Denman Glacier has allowed a rare exploration opportunity on the #DMV

Here's @hochmuth.bsky.social on the mapping of the seafloor in this incredible unchartered territory ⬇️ #blog

antarctic.org.au/denman-glaci...

DMV - ACEAS ACEAS - Australian centre for excellence in antarctic science

If you're interested in following on the pioneering scientific voyage to the Denman Glacier region of Antarctica, then follow the @antarcticsciaus.bsky.social blog

There are some great entries there already - including a fantastic piece on Lady Denman #DMV ⚒️🌊🧪

antarctic.org.au/dmv/#dmvblog

The first Kasten core deployment has extracted a tube of mud from the #Antarctic seafloor. Once in the lab, the sampling begins for traces of ancient eDNA (AAD team) and porewater, and measuring for thermal conductivity.

(Karin Orth, Taryn Noble, Amy Wells) | @utas.edu.au

📷: Katharina Hochmuth

ICESat-2 fired its TWO TRILLIONTH laser shot last weekend, and it hit off the coast of East Antarctica, right by Australia’s Casey station! Yay for @thenasaearth.bsky.social and all the incredible satellites we have monitoring planet Earth for the benefit of humanity…

blogs.nasa.gov/icesat2/2025...

Abstract submission for the Climate and Cryosphere Open Science Conference 2026 is now open!
Submit your abstracts by 31 July 2025.

➡️ clic2026.com

‘A dream experiment’: our Australian icebreaker is on a crucial mission to Antarctica | Nathan Bindoff As an oceanographer, I’m excited about the prospect of getting ocean, ice and climate data from a region where few observations have been collected

🌊 "As an oceanographer, I’m excited about the prospect of getting ocean, ice and climate data from a region where few observations have been collected.

The only way to get information like this is to be there."

— Prof Nathan Bindoff, AAPP/@utas.edu.au

www.theguardian.com/commentisfre...

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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Stay safe! Maybe leave the bike at home for those days…

We wish our researchers, partners and all aboard RSV Nuyina a successful mission south to study changes to the Denman Glacier system from the ocean. #DMV - it's finally here!

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

Australian Antarctic Science Decadal Strategy 2025–2035 – Australian Antarctic Program

Australian Antarctic Science Decadal Strategy 2025–2035 www.antarctica.gov.au/about-us/str...

Iceberg A23a is drawing significant attention as it drifts toward South Georgia and the South Sandwich Islands. A #Landsat 9 image from Feb. 26 shows it roughly 50 nautical miles from the remote islands. Learn more about the journey of A23a here: ow.ly/Cz4950V7XVl

Great! Thanks @satellitesci.bsky.social