Valerio Lembo

Con IA e supercomputer previsioni climatiche sempre più precise - Frontiere - Ansa.it Una sfida possibile grazie all’infrastruttura di Icsc (ANSA)

An almost 1-year old interview on the role of AI for weather forecasting and climate predictions/projections for the @mm-ansa-bot.bsky.social Italian press agency. I was a bit offline recently!

@cnrisac.bsky.social

Can climate models reproduce observed trends?

The answer can be challenging. Our new review paper in Science Advances led by Isla Simpson and Tiffany Shaw @drshaw.bsky.social discusses challenges and ways forward in confronting climate models and observations.

www.science.org/doi/10.1126/...

Guest opinion: Robert Hart, Kerry Emanuel and Lance Bosart: We need NOAA now more than ever The recent seemingly arbitrary and capricious reductions to NOAA are seriously jeopardizing the future of the country and, more generally, the property and lives of hundreds of millions of tax-payi…

"We need NOAA now more than ever" | Must-read op-ed by my colleagues Robert Hart, Kerry Emanuel and Lance Bosart in the #DailyCamera: www.dailycamera.com/2025/03/12/g...

Crowds Stand Up for Science Across the United States - Eos Funding freezes, firings, and censorship have sent shockwaves through the science community since January. Scientists and supporters are standing up in defense.

"Crowds Stand Up for Science Across the United States" by Kimberly M. S. Cartier, Emily Dieckman, Jennifer Schmidt and Grace van Deelen for @americangeo.bsky.social #Eos:
eos.org/articles/cro...

Da quando l’ho letta sul riassunto di un romanzo distopico qualche giorno fa, c’è una frase che non mi lascia più:

“Visto che la democrazia non interessava più a nessuno, il presidente la dichiarò abolita”

💼 We are hiring!

🎓 The University of Trento, jointly with CNR-ISAC, is seeking 2 candidates to work on the new project MedHEX.

🗓️ Open until: 12 pm on 14/02/2025
🗓️ Contract length: 15 months
💲 Gross annual salary: Euros 29.550,00

👉 Apply here: lavoraconnoi.unitn.it/en/research-...

The kind of stupid ideas we should not follow in a pursue to combat climate change

Strong winds blowing through Mexico's Isthmus of Tehuantepec cause smoke to balloon over the eastern Pacific Ocean.

'Dynamics, Statistics, and Predictability of Rossby Waves, Heat Waves, and Spatially Compounding Extreme Events'

new meeting report out in BAMS @ametsoc.bsky.social led by @valeriolembo.bsky.social.

paper: tinyurl.com/RossbyWaves

@iiasa.ac.at @lamontearth.bsky.social @columbiaclimate.bsky.social

It took a while, but we finally got to publish this meeting summary (that is also a bit of a perspective) from the community that took part to the workshop on Rossby waves, #heatwaves and compound #extreme #events, held at Bologna CNR research area in November 2023!

New paper alert!
Led by @valeriolembo.bsky.social we published a paper on Rossby waves #heatwaves and compound #extremes based on a nice workshop a year ago

journals.ametsoc.org/view/journal...
#openaccess

I am very happy to announce that I am convening a session at @eurogeosciences.bsky.social 2025 GA in Vienna!

If you are an expert on atmosphere-oceans interactions in the extra-tropics, you have time until 15th January 2025 to submit an abstract here: meetingorganizer.copernicus.org/EGU25/sessio...

G20 failure to explicitly back fossil fuel transition upsets COP29 talks Fears rise of stalemate on climate action in wake of Trump election victory

The G20 has removed language calling for the "transition away from fossil fuels," agreed on at COP28, from its leaders' statement in Rio.

You can call this backsliding, or you can call it murderous indifference. Really, up to you.

www.ft.com/content/8352...

Screenshot of the ECMWF regimes forecast page

North American weather regime forecast pages on my website now redesigned & updated!

GEFS: simonleewx.com/gefs_north_a...

ECMWF: simonleewx.com/ecmwf_north_...

Climate tracker suggests no improvement in Earth's projected warming for 3rd straight year Climate scientists say the atmospheric warming, mainly from human burning of fossil fuels, is causing ever more extreme and damaging weather including droughts, flooding and dangerous heat.

The #climateactiontracker global update shows we are heading for around 2.7°C of warming by the end of the century, says Sofia Gonzales-Zuñiga, “the curve is not going down”.
apnews.com/video/floods...

There is a growing risk of spectacularization of climate change-related natural disasters, making people addicted users of a horrific content creator, suddenly turned into a post-traumatic society, writes @FerdinandoC (ITA, turn translator on) https://t.co/GheJDwWbLQ

AROME-HD almost perfectly forecasted the cumulated precipitation over Valencia region yesterday https://t.co/iUBZurBUHi

Thank you @DaviFaranda and Gabriele Messori for allowing us to provide some views on what we have been doing in recent years...
And thanks Vera Melinda Galfi for bringing her expertise on EVT inside our analyses. Her contribution has been fundamental! https://t.co/0ncXDtpeJa

Let me recall something that she said in her Perspectives seminar in 2021, where she was invited as speaker, something that I consider now as a take-home message and a testament: "The path to a sustainable future goes through policies that truely address social inequalities."/END

She had an incredible talent, worked with some of the universally recognized pioneers of climate science, first female professor at MIT Department of Meteorology. Always generous and kind, supportive and encouraging./2

Ok... I would not consider 40 years of AMIP runs a groundbreaking step towards hybrid climate simulations, but results are certainly interesting! It might also be worth noting that not all dynamical cores are similar. Let us see where this hype is bringing us in the future! https://t.co/I4A08QP2bf

A long awaited, fundamental paper on the spontaneous collapse of the AMOC (OA document here: https://t.co/0dMaZt68mo)

Congratulations @MatteoCini4, Francesco Ragone, Giuseppe Zappa and @Susanna_Corti ! https://t.co/j0zxNDjJHf

What an amazing week in Munich hosted by @DLR_en, for the workshop of the CMIP7 Model Benchmarking Task Team! A productive session with great colleagues. Thanks @BirgieHassler for organizing it and thanks @wcrpcmip for allowing me to be part of this team!

https://t.co/PtUikoG597

An outreach synthesis on the knowledge about the AMOC collapse, from our @CnrIsac and @PoliTOnews colleagues...

https://t.co/BSHwBRQ0FA

Un breve ma puntuale rapporto di @CnrIsac sull'evento alluvionale in Emilia-Romagna del Maggio '23 e su quello che stiamo facendo per capire meglio cosa é successo e imparare a prevederlo (meglio; infatti il modello MOLOCH, come si vede, ha previsto molto bene il fenomeno)! https://t.co/vgxOAyRazm

A first step... https://t.co/wr2C9aVAEN

Ken Golden (@UUtah) and co-authors: "Stjeltjes functions and spectral analysis in the physics of sea ice"
https://t.co/y7yxl0VYIe

Cross-fertilization of solid state physics and statistical mechanics, informing the knowledge of sea-ice structures and physics from observations

Michael Ghil (@ucla) and Denisse Sciamarella (@CNRS): "Dynamical systems, algebraic topology and the climate sciences" https://t.co/wjxwaHz95p

The beauty and elegance of dynamical systems theory and insights on how topology is used to describe attractors in complex systems

Shaun Lovejoy (@mcgillu): "Scaling, dynamical regimes and stratification. How long does weather last? How big is a cloud?" https://t.co/WeVjCAcRou

The diverse landscape of multifractal cascade in climate systems and the quest for generalization in turbulence theory across scales

Giovanni Jona-Lasinio (@SapienzaRoma): "Large fluctuations in non-equilibrium phyics"
https://t.co/HzsFrsxM3V

A Nobel lecturer's take on what large deviation theory means for geophysical fluid dynamics and climate studies