Jacopo Riboldi
@jriboldi.bsky.social
Lecturer in Atmospheric Dynamics at ETH Zurich 🇮🇹🇨🇭 Tackling climate research problems from a weather-centered perspective 🌦🌀🌡
The authors of a Comment article in Nature highlight concerns over adopting AI in meteorology and call on the weather and climate community to set clear standards, starting with agreed data sets, for testing out-of-sample extreme-event predictions objectively. 🧪
Can AI models reliably forecast extreme weather events?
More-rigorous testing is required before artificial-intelligence approaches are widely adopted by public forecasting agencies.
go.nature.com
In Geophysical Research Letters, scientists present the first simulation of an entire tropical cyclone, from an initial vortex to maturity, at a very high-resolution (100-meter grid spacing). 🔗 Check it out: buff.ly/85qhRSwhtt #AGUPubs #Atmosphere #TropicalCyclone
The strong pressure gradient between a cut-off cyclone over N Africa and a cold anticyclone over eastern Europe will lead in the next few days to very strong SE winds and heavy precipitation over southern Italy and Spain. The whole western Mediterranean will feel it! 🌀⛈️🌬️🌊 Plots: charts.ecmwf.int
In only 8 days, it is EGU26 submission deadline! 🚨 If your work involves Rossby waves, jet streams and extreme weather/climate events, consider submitting your abstract to the "Atmospheric Rossby Waves and Jet Dynamics" session! 🌬️〰️🌀 Invited speaker this year: Dr. Philipp Breul (University of Köln)
An interesting new project about the physical and dynamical processes behind extreme windstorms in present and future climate 🌬 at @unirdg-artcol.bsky.social Consider applying if you are interested!
Ambrogio Volonté@ambroeusvolonte.bsky.social · 9mo agoInterested in revealing how moisture-driven surface cyclones can develop into hazardous windstorms, now and in the future? You could do it at @unirdg-met.bsky.social @ncas-uk.bsky.social, working with @benharvey.bsky.social, @jriboldi.bsky.social, Sue gray and me! jobs.reading.ac.uk/Job/JobDetai...
"Sycophancy essentially means that the model trusts the user to say correct things,” says Jasper Dekoninck, a data science PhD student at the Swiss Federal Institute of Technology in Zurich".
Nature@nature.com · 10mo agoAI models are 50% more sycophantic than humans go.nature.com/3L1LwA1
Cette carte est unique au monde. Après plusieurs mois de modélisation, AgroClimat2050 dévoile une 1ère mondiale : la biogéographie future (c’est-à-dire l’aire de répartition) de l’une des 🍎 les + consommées au monde (Golden) grâce à un modèle agroclimatique qui n'a pas d'équivalent en Europe. 1/7
Storm Boris hit central Europe with extreme precipitation in September 2024: how will this event look like in a warmer climate? 🌧🌡 Many different, but equally correct answers can be given! Discover the nuances in our new work, now in open discussion at egusphere.copernicus.org/preprints/20...
EGUsphere - Storm Boris (2024) in the current and future climate: a dynamics-centered contextualization, and some lessons learnt
egusphere.copernicus.org
Bref coup de chaud mardi&mercredi associé a une dépression "pompe a chaleur" au large du Portugal #PlumeDeChaleur, puis probable mise en place d'un très puissant #DomeDeChaleur (fort anticyclone) pour la fin du moins de Juin avec persistance de chaleur extrême (Sud 🇫🇷). Effrayant mais pas surprenant!
Under pressure from the Trump administration, the National Science Foundation (NSF), a $9 billion agency funding scientific research that has made America great, has canceled over a thousand grants and slowed new funding. That's just the beginning and will get way worse unless Congress intervenes.
Amid DOGE-induced turmoil, National Science Foundation in crisis
The $9 billion agency, which exists solely to fund researchers, projects and facilities outside its Alexandria, Virginia, headquarters, is hitting reverse on its mission.
wapo.st
Dear weather and climate dynamics enthusiasts, an exciting session with 24 contributions (orals+posters) awaits you at EGU25 **tomorrow**, Monday 28.05, from 14 to 18 in rooms M1 and X5. Hope to see many of you there at the "Atmospheric Rossby Waves and Jet Dynamics" session! 🌬️〰️🌀
Jacopo Riboldi@jriboldi.bsky.social · 2y agoIn 10 days, it is EGU25 submission deadline! 🚨 If your work involves large-scale dynamics and extreme weather/climate events, then consider submitting your abstract to the "Atmospheric Rossby Waves and Jet Dynamics" session! 🌬️〰️🌀 Invited speakers: Peiqiang Xu (IAP) and Talia Tamarin-Brodsky (MIT)!
Première #galerne (coup de vent brutal sur Pays Basque/Sud Landes) ce soir 18 Avril autour de 19h avec rafales locales proches de 100km/h. Renversement/renforcement extrêmement rapide des vents au passage d'un front orageux après belle journée de chauffage (Température ~25°C dans le Sud-Ouest) 1/
Doppler radars for tornado and severe weather rapid warnings, hurricane hunters' flights for improved track and intensity forecasts, weather and climate models used by many stakeholders... NOAA excellence and contribution to society are under threat. Full support to it and to @ametsoc.org effort!
American Meteorological Society@ametsoc.org · last yr.The 2026 budget passback plan calls for eliminating NOAA Research, the scientific backbone that keeps weather forecasts, alerts, and warnings accurate and effective. This would have disastrous consequences. Read the AMS statement, in partnership w/ @nwas.org: bit.ly/4cz2RtC
One of a meteorologist’s biggest pet peeves is “my app says it’ll be ____”. Weather apps can miss so many details that a meteorologist will know. Let’s use tomorrow in NYC — my app says it’ll be 78 degrees but rainy. But is that the full story? Spoiler alert… no, it’s not!
From life-saving weather warnings and cancer treatments to tech breakthroughs, federally funded science drives progress. In an open letter, the AMS urges strong federal science funding to ensure our future. More: bit.ly/4j6rQGZ
Science Helps You Thrive: Strong U.S. Scientific Leadership Raises Us All
The AMS is a global community committed to advancing weather, water, and climate science and service.
bit.ly
🧵: I am getting texts on what scientists should do in this perilous and scary moment. My advice: your biggest power is to organize through your professional societies. A few ideas -
🚨Paper alert 🚨 Do you wonder about how emotions influence climate-friendly outcomes? @kimdoell.bsky.social and I have analyzed how 8 emotions influence climate beliefs, climate policy support, sharing climate messages, and climate behavior across 63 countries. We found that... 1/
OSF
osf.io
129 cm di neve in 12 ore a Obihiro (Hokkaido), nuovo record nazionale. A record-breaking 1.29m of snow fell in Obihiro, Japan, within just 12 hours on February 4, 2025, setting a new national record for 12-hour snowfall and leaving cars stranded in deep snow. 1/2 watchers.news/2025/02/04/j...
Japan sets new national 12-hour snowfall record with 1.29 m (4 feet) in Hokkaido
A record-breaking 1.29 m (4 feet) of snow fell in Obihiro, Japan, within just 12 hours on February 4, 2025, setting a new national record for 12-hour snowfall and leaving cars stranded in deep snow.
watchers.news
Aumento de las frecuencias de bloqueo en simulaciones de modelos climáticos idealizados de muy alta resolución, por @bernat_jimenez igeo.ucm-csic.es/aum... #IGEOinvestiga
Interesting read! There are many neopositivist and even "messianic" expectations about AGI, I hope we will soon have more realistic expectations about that "bubble", too.
Karen Hao@karenhao.bsky.social · 2y agoAs someone who has reported on AI for 7 years and covered China tech as well, I think the biggest lesson to be drawn from DeepSeek is the huge cracks it illustrates with the current dominant paradigm of AI development. A long thread. 1/
It's no exaggeration to say today brought a truly historical weather event to the Gulf Coast - lots of places all the way down to the water got over 6-8 inches of snow, shattering records going as far back as 1895 in some places. Let's review what caused this historic event 🧵
It is high time to meditate on the effect that North American conditions can have on Europe (and not only from a meteorological viewpoint!) In the current event, I like how it is the same trough now above the southern US that moves over the Atlantic to support the strong Atlantic cyclogenesis 🌀
Tomer Burg@burgwx.bsky.social · 2y agoThe extreme cyclone headed towards Ireland & the UK is a direct result of the upcoming southern US snowstorm - strong cold air advection into the Gulf of Mexico leads to an intense baroclinic wave developing and rapidly deepening as it traverses the North Atlantic:
📢 Extended abstract submission deadline for the storm tracks workshop! 📢 15 Jan. 2025 -> 20 Jan. 2025 A very focused meeting, bringing together many experts of storm tracks and extratropical dynamics 🌦 I attended the previous one and can only recommend it 🙂
Tim Woollings@timwoollings.bsky.social · 2y agoAbstract deadline for the storm tracks workshop has been extended to 20 January - please tell your friends! Will be a great meeting in a wonderful place.
Very interesting review co-authored by @usyseth.bsky.social profs @manuelaibrunner.bsky.social and A. Prein about the increasing "hydroclimatic volatility", aka sudden transitions from drought to flooding or vice versa. Water cycle gets faster in a warmer climate!🌡🌧🔄 www.nature.com/articles/s43...
Hydroclimate volatility on a warming Earth - Nature Reviews Earth & Environment
Rapid transitions between extreme wet and extreme dry conditions — ‘hydroclimate whiplash’ — have marked environmental and societal impacts. This Review outlines observed and projected changes in hydr...
nature.com
The fires ravaging the outskirts of Los Angeles are driven by anomalously strong easterly winds, locally known as 'Santa Ana winds". Low-level winds speeds over the area exceed 5 standard deviations in anomaly (though wind speed is not gaussian, but ok). But why are they so strong?
In 10 days, it is EGU25 submission deadline! 🚨 If your work involves large-scale dynamics and extreme weather/climate events, then consider submitting your abstract to the "Atmospheric Rossby Waves and Jet Dynamics" session! 🌬️〰️🌀 Invited speakers: Peiqiang Xu (IAP) and Talia Tamarin-Brodsky (MIT)!
New evidence that it was the economic vibes, stupid open.substack.com/pub/paulkrug...
A Win for the Vibecession Story
Guess what? Popular economic narratives aren’t reliable
open.substack.com
Very interesting! A "red" weather alert might now have a direct effect on the GDP 🚨 An even greater responsibility for @aemet.extwitter.link and civil protection bodies. It will be an occasion to further refine the national warning system, while making Spain more resilient to climate change 🌦
The Guardian@theguardian.com · 2y agoSpain introduces paid climate leave after deadly floods
