Matt King

NEW: Extraordinary footage has emerged of the huge tsunami that hit Russia’s remote Kamchatka peninsula after the 8.8 magnitude earthquake on July 30th.

(🎥 Doni Nikz)

Denman Terrestrial Campaign - ACEAS ACEAS - Australian centre for excellence in antarctic science

Before the Denman Marine Voyage, there was the Denman Terrestrial Campaign… ⛏️

Check out our new web page dedicated to the #DTC, learn more about how the two bodies of fieldwork link together and stay tuned for updates as the research into the Denman Glacier continues ⬇️

antarctic.org.au/dtc/

Melting glaciers on remote Australian island spark concern Glaciers on the remote Australian territory of Heard Island have lost almost a quarter of their size over the past seven decades amid rising temperatures in the sub-Antarctic region, new research show...

Australia's only glaciers are shrinking fast.

Important work led by @levantielidze.bsky.social @andrewmackintosh.bsky.social @arcsaef.bsky.social

paper here: tc.copernicus.org/articles/19/...
news here:
www.abc.net.au/news/2025-08...

Climate change: new method can more accurately attribute environmental harm to individual polluters Claimants in climate liability cases will benefit from a new emissions attribution method.

"without emissions from 111 large oil, gas and coal producers (collectively referred to as “carbon majors”) such as ExxonMobil, BP, Saudi Aramco and Gazprom, the global economy would be US$28 trillion richer."

theconversation.com/climate-chan...

Large plenary meeting room at COP27. There are rows of desks, with people seated at the desks, facing a large stage with two big screens either side of it.

A diorama of 3 polar bears standing on a small iceberg, wearing orange lifejackets. One of them is looking at a penguin that appears to have been hanged.

Screenshot of text from The Times. It reads: "Then, this year, I arrived at the Glasgow Cop to see that the Qatar stand - the stand of the country with the highest per capita emissions in the world - was especially popular because it had the best coffee. The Indonesian stand had the best food but a stern sign saying you had to listen to a talk before eating. The Tuvalu stand, just beyond it, inexplicably has a diorama of polar bears lynching a penguin."

Are you an ECR working in some kind of cryosphere-related field? Are you interested in learning about international climate diplomacy and the COP process? Do you want to go to COP30 in Brazil in November? If yes, apply to volunteer with ICCI: iccinet.org/cop30-cryosp... It's an experience!

NASA-ISRO’s NISAR Spacecraft Separates From Rocket’s Third Stage - NASA Science The NISAR (NASA-ISRO Synthetic Aperture Radar) spacecraft has separated from the third stage of ISRO’s Geosynchronous Satellite Launch Vehicle rocket and will

Let's go NISAR!!! Successful separation - now we wait on the rest of the deployment over the next week or so. #nisar #isro #nasa
science.nasa.gov/blogs/nisar/...

An underwater observatory keeping the pulse of the Southern Ocean for nearly 30 years yields fresh results From the wave-lashed surface to the deep sea, the Southern Ocean Time Series is a crucial tool for scientists to keep the pulse of this important region of Earth.

A nice article on the importance of long term observing by Chris Trail:

theconversation.com/an-underwate...

USGS has the earthquake now revised to an 8.8 Mw magnitude--same size as the 2010 Maule Chile Earthquake and the 1906 Ecuador-Colombia Earthquake, making it tied for 6th,7th,8th largest earthquake since 1900.

Really interesting it's so close to the 1952 9.0 magnitude earthquake.

Image of the coast of California showing the area between the state line and cape Mendocino in red.

Part of Northern California (from the CA/OR border to Cape Mendicino) is now under a Tsunami Warning. The rest of California remains under a Tsunami Advisory.
www.tsunami.gov

Weak upper-mantle base revealed by postseismic deformation of a deep earthquake - Nature The Earth’s mantle viscosity is studied following a deep earthquake located near the bottom of the upper mantle, and a weak layer is detected that is consequential to the understanding of mantle dynam...

Another large-magnitude (Mw6.6) and deep (550km) Earthquake near Fiji
earthquake.usgs.gov/earthquakes/...

Follows the magnitude 8.2 in 2018 covered in this paper
www.nature.com/articles/s41...

Position Statement—Australia’s scientific leadership in Antarctica Antarctic and Southern Ocean science is critical to understanding and responding to climate change and safeguarding Australia’s national interests.

We welcome the Australian Academy of Science’s position statement on Australia’s scientific leadership in Antarctica and the Southern Ocean.
It calls for urgent, ambitious, and strategic action backed by whole-of-government support and sustainable funding.
🔗Read statement: buff.ly/orUA3QO

Are you a top US-based scientist wanting to relocate to Australia? We are now calling for formal applications from both Australian and non-Australian citizens based in the US whose work is internationally recognised as exceptional.
📅 Applications close: Aug 29, 2025
🔗 science.org.au/gtap/?utm_so...

Current Vacancies

I am currently advertising a new 3-year research position in my TerraLuma team: Research Associate in Drone Field Operations (Academic Level A)

The position will support the Terrestrial Ecosystem Research Network’s (@TERN_Aus) Dronescape project.

careers.utas.edu.au/cw/en/job/50...

Earthquake diagrams. Map of wavepath from source to receiver, seismogram of vertical component of ground motion velocity and spectrogram showing frequency content against time. 22:10:32UTC 2025/07/28 M6.9 Macquarie Islands region earthquake

P-waves pretty much through the centre of the Earth from today’s (22:10:32UTC 2025/07/28) M6.9 Macquarie Islands region earthquake recorded on my @raspishake.bsky.social seismometer in Newcastle-under-Lyme, England. ⚒️🧪

I stand for NOAA. But I can't stand being gaslighted by current comms staff (yes—just 'doing their job' and afraid of repercussions). They describe what will remain after SSMIS data ends as “the richest most accurate satellite weather observations available” (pics @michaelrlowry.bsky.social)

#geodesy

Free and ad-free mobile application informing citizens in case of an earthquake and gathering their testimonies in the aftermath via comments, pictures, and videos.

Shaky times in the Macca region.

earthquake M6.8 MACQUARIE ISLAND REGION, 2025-07-28 22:10:33 UTC m.emsc.eu?id=1838260

Unprecedented continental drying, shrinking freshwater availability, and increasing land contributions to sea level rise Drying continents, extreme drought, and groundwater depletion are shrinking water availability and increasing sea level rise.

After a long absence from Twitter, I'm now on Bluesky. Looking forward to sharing thoughts, research, and rants about the lack of attention paid to water. Let's kick this off with a new paper alert. Please share widely. Title says it all. Please help me grow followers www.science.org/doi/10.1126/...

🌊❄️🧪 🇦🇶 Please share:

We have learned that the National Science Foundation is moving ahead with plans to decommission the U.S. Research Vessel/Ice Breaker Nathaniel B. Palmer this October.

If you care about Antarctic research, please read on (1/n)

Screenshot from polarportal.dk, a website that makes research on the Arctic research conducted by Danish institutions available to the public and researchers. The image shows Greenland in tan and the Greenland Ice Sheet in red and white. The red part indicates melting and covers all except about 20% in the northeast, which is roughly the area higher than 2500 m above Se level. Below the map is a chart that compares 2025 melting to the 1981-2010 average. The average melting peaks in mid-July at about 35%. For the last few days, melting has occurred over roughly 80% of the area of Greenland, with a maximum melt area of 80.6% on 24 July 2025. This is the highest value in our dataset, which starts in 1981.

Melting over 80.6% of the area of the Greenland Ice Sheet. This is the highest value in our data set, which starts in 1981.

@polarportal.bsky.social

YouTube video by OceanClimateAtUoL Measuring Changes in Ocean Mass

How do you weigh the ocean? An old one for the #geodesy fans here! I'd forgotten how nice this video is 🤩 @noc.ac.uk
www.youtube.com/watch?v=Cdtn...

“Staggering” Water Loss Driven by Groundwater Mining Poses Global Threat A new study finds that freshwater resources are rapidly disappearing, creating arid “mega” regions and causing sea levels to rise.

“Staggering” Water Loss Driven by Groundwater Mining Poses Global Threat:

A new study finds that freshwater resources are rapidly disappearing, creating arid “mega” regions and causing sea levels to rise.

Article BASE thread 🧵 (17 min) 📖🍿🔊

Kangaroos and penguins!

And climate-critical ocean circulation

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

🌊🇦🇶

Bits and Bites of Geodesy – Trilateration on Vacation: How GNSS Locates You Summer vacations are finally here! Like every year, many of us are ready to travel and explore new and exciting destinations. And of course, the GPS on our phones will be an indispensable travel compa...

Looking to learn more about how your phone knows where you are? 🛰️📍🗺️
Read our newest Bits and Bites of Geodesy blog post about GPS/GNSS.
blogs.egu.eu/divisions/g/...

Antarctic phytoplankton communities restructure under shifting sea-ice regimes - Nature Climate Change The authors use a machine learning approach and in situ pigment samples to identify summer shifts (1997–2023) in the abundance and composition of Antarctic phytoplankton. While smaller phytoplankton g...

'Antarctic phytoplankton communities restructure under shifting sea-ice regimes', @natclimate.nature.com
doi.org/10.1038/s415...

First locally born Tasmanian governor, Guy Green, dies aged 87 Colleagues and friends remember a thoughtful man of the law, champion of the Antarctic and "one of the funniest men".

A remarkable gentle man has left the building. Vale Sir Guy. A champion of principles and the environment. My life & many others, enriched by knowing him .
"His humour was just so engaging, his intellect was amazing”

Article 54 of the 1977 Geneva Convention Protocol I.

1. Starvation of civilians as a method of warfare is prohibited.

New round of seal-borne observations to help fill knowledge gaps in key Antarctic region - ACEAS New round of seal-borne observations to help fill knowledge gaps in key Antarctic region A team of specialist seal taggers has successfully tagged 14 southern elephant seals at Macquarie Island with s...

Southern elephant seals tagged by a specialist team on Macquarie Island in late May are already transmitting CTD profiles from the Southern Ocean, as far as the sea-ice edge.

@imos-aus.bsky.social | @utas.edu.au | @clive-mcmahon.bsky.social

antarctic.org.au/new-round-of...

Top UN court singles out fossil fuels as part of states’ climate duty Landmark opinion says those that fail to prevent climate harm could be liable for compensation and restitution

"States must tackle fossil fuels, the world’s top court has ruled, and failing to prevent harm to the climate could result in them being ordered to pay reparations."

www.theguardian.com/environment/...