banner
LightNews
drjucker.bsky.social
Martin Jucker
@drjucker.bsky.social
1.1K followers 260 following 60 posts
Atmospheric scientist. Scientific artist. Knows that the answer is forty-two and that true heroes go to infinity and beyond. www.martinjucker.com
Posts Media Videos Starter Packs
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 9d
Two hurricanes hugging. #Humberto #Imelda
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 10d
Online:
- The Guardian: www.theguardian.com/environment/...
- Sydney Morning Herald: www.smh.com.au/environment/...
- NewScientist: www.newscientist.com/article/2497...
- Yahoo News: au.news.yahoo.com/the-rare-wea...)
- SBS News: www.sbs.com.au/news/article...)
Abnormally hot days may hit Australia’s south-east after rare sudden warming over Antarctica
Phenomenon extremely unusual in southern hemisphere and last occurred in 2019 when it contributed to worsening of black summer bushfires
www.theguardian.com
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 10d
and here some more online SSW stories:

On TV:
- ABC News: youtu.be/iYWjZEn1_w8?...
- Channel 10 News+: youtu.be/f8YyLXAPxTo?...
Weather event above Antarctica sees 30-degree rise in air temperature | ABC NEWS
YouTube video by ABC News (Australia)
youtu.be
1 1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 10d
Busy days around what might become to be known as the 2025 Sudden Stratospheric Warming: Loads of media interest, and thanks to the journalists who take their time to talk to me before writing their story. Happy to take some of mine in turn. theconversation.com/air-temperat...
Visualisation of the southern hemisphere with the south pole on top, and above the pole the cold polar vortex being pushed to the side by a patch of warming over the southern ocean.
1 7 4
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 13d
and here’s the link. took me until now to find it ;) youtu.be/iYWjZEn1_w8?...
Weather event above Antarctica sees 30-degree rise in air temperature | ABC NEWS
YouTube video by ABC News (Australia)
youtu.be
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 14d
Thanks to ABC TV News Channel for the chat about the stratosphere, sudden warmings, and the weather to come!
2 6
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 16d
wait, is there another typhoon following #Ragasa (1) and #Neoguri (2)?
2
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 17d
Super Typhoon #Ragasa definitely has an eye. Here seen from relatively low-resolution GFS data. But there’s also some wild dynamics happening all over the Pacific. #weather #sciviz
3
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · 17d
Busy Western Pacific right now. Cat 5 (Ragasa) and 4 (Neoguri) not far from each other. I wonder whether the strong tropical Pacific activity could be linked to the unusually weak Antarctic stratospheric polar vortex at the same time? 🤔 #sciviz #Ragasa #Neoguri
A computer image of Super Typhoon Ragasa and Typhoon Neoguri.
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Sep 7
finally we’ve done it. grand final winners 2025 ⚽️🏆now I’m ready for summer sports.
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Aug 10
anyone in need of a reminder how stupid AI is?
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Jul 1
yes. it’s loving us very much!
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Jul 1
I propose calling the current low pressure system the Heart Low. This is what the forecast looks like for later today. 🤍 #sciart #weather
rendering of clouds and winds in the Tasman Sea.
1 2
Reposted by Martin Jucker
revkin.bsky.social
Andy Revkin 🌎 ✍🏼 🪕 ☮️ revkin.substack.com @revkin.bsky.social · Jun 26
Clearer skies a prime driver of heating

aapnews.aap.com.au/news/clue-to...
1 2 9
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Jun 22
I’ve had some time in the plane to finish my next Garage Horns video. Sweet and short, and five times me! 😎🎷 youtu.be/5RAJNDsZKXU?...
New Intro (Garage Band version)
YouTube video by Martin Jucker
youtu.be
4
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Jun 13
This was an interesting piece of work with George Driver from the AAP: debunking stuff which sounds very sophisticated, gets many things right, and is still completely wrong. Hopefully an insightful read 🧪 aapnews.aap.com.au/news/former-...
Former senator's global warming claims misrepresent physics: experts
Outgoing Queensland senator Gerard Rennick claims global warming could not occur because it goes against the laws of physics, but experts say his claims misunderstand how CO2 warms the earth.
aapnews.aap.com.au
2 4
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Jun 2
So proud of my (now former) student Valentina Ortiz Guzman who just submitted her thesis 🥳🎉 This is not just her first PhD submission, but also my first submission as primary supervisor. So loads of firsts for everyone!
7
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · Jun 2
Here’s a good writeup about this (with a focus in Australia) from Kamilia Palu: au.news.yahoo.com/major-disast...
Major disaster from three years ago could impact Australia's winters for years
The eruption happened more than 1200 days ago, but we could start to see the strongest impact from this year.
au.news.yahoo.com
Reposted by Martin Jucker
ccrc.bsky.social
UNSW Climate Change Research Centre @ccrc.bsky.social · May 26
A new study by @drjucker.bsky.social and colleagues reveals climate models show strong dry biases on eastern continental coasts due to convective representation and dynamics. Caution is advised when using climate models to assess rainfall trends in these regions.
Read more: doi.org/10.1002/qj.5...
Global representation of extratropical cyclone precipitation and future trends in CMIP6 models
We use a cyclone-tracking algorithm to study precipitation produced by extratropical cyclones and identify five global hotspots of extreme precipitation: the well-known Pacific and Atlantic storm tra...
doi.org
2 5
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · May 21
5. We suggested there might be a relation between the volcano and the evolution of ENSO. I think this one is still out there and I'm excited to see new, more comprehensive model simulations slowly coming out and pointing to similar ideas. 5/5
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · May 21
4. On the other hand, the larger ozone hole observed in spring 2023 did evolve as predicted, and the resulting positive Southern Annular Mode might well have been the reason the 2023-24 southern hemisphere summer was not as expected from the co-occurring El Nino. One prediction come true? 4/5
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · May 21
3. We might never know the actual, isolated climate impact because it gets drowned in all these other effects. Maybe this means it had no effect, but that would be wrong in the sense that a similar eruption in a more stable period (past or future) might still have measurable impact. 3/5
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · May 21
2. I would expect current sea surface temperature anomalies to dominate over any regional influence the volcano might have had. So I don't think the "weird" weather we are seeing in many places around the globe should be attributed to Hunga Tonga. 2/5
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · May 21
1. most important of all, and in accordance with all other research related to Hunga, we do not expect any measurable effect on global mean surface temperatures. Thus, none of what is and has been happening in terms of global mean temps in the recent past can be attributed to Hunga Tonga. 1/5
1
drjucker.bsky.social
Martin Jucker @drjucker.bsky.social · May 21
It's been a year since our study on the Hunga Tonga volcano came out (doi.org/10.1175/JCLI...), and given we're entering the period where our simulations suggested regional impacts, I thought I'd add a few thoughts: 0/5
Long-Term Climate Impacts of Large Stratospheric Water Vapor Perturbations
Abstract The amount of water vapor injected into the stratosphere after the eruption of Hunga Tonga–Hunga Ha’apai (HTHH) was unprecedented, and it is therefore unclear what it might mean for surface c...
doi.org
2 2