Neuer Hitzerekord in Wien mit über 40°C und mehr als 10°C über den durchschnittlichen Temperaturen für diese Jahreszeit 🥵 Artikel von @derstandard.at Historischer Vergleich von @reuters.com
Lukas Brunner
@lukasbrunner.bsky.social
Climate scientist @uni-hamburg.de: future projections, extremes, uncertainties | Formerly @ethz.ch @univie.ac.at | PhD @uni-graz.at | Python nerd | Hiking enthusiast #SystemChangeNotClimateChange #OpenScience More: https://lukasbrunner.github.io
"Es ist halt Sommer" 🙃 Schönes Tool, schaut mal rein Wie die heutigen Temperaturen im Vergleich zum historischen Durchschnitt ausfallen Reuters Climate Monitor www.reuters.com/graphics/CLI...
Lukas Brunner@lukasbrunner.bsky.social · 3d ago@reuters.com has a new tool to compare today's weather in a climate context. Pretty cool to play around with and pretty sobering at the same time 🥵 www.reuters.com/graphics/CLI...
@reuters.com has a new tool to compare today's weather in a climate context. Pretty cool to play around with and pretty sobering at the same time 🥵 www.reuters.com/graphics/CLI...
Reuters Climate Monitor
How today's temperatures compare to the historic average
reuters.com
Great to see the km-scale models perform well in Lukas' comparison! We bring the same models into an operational framework @ec.europa.eu, with a resolution of 5km. To get started with the latest generation, please look at platform.destine.eu/climate-dt/ @ecmwf.int @esa.int @eumetsat.int
Lukas Brunner@lukasbrunner.bsky.social · 3mo agoIf you are like me and prefer to read the typeset version of papers, here you go: the final version is out fresh from the print 😊 www.nature.com/articles/s43...
This is a quick summary of the latest CMIP process. It is a complex beast and a consensus project so there are always things that you’ll agree with and those that you might not. 1/
Carbon Brief@carbonbrief.org · 3mo agoGuest post: How CMIP7 will shape the next wave of climate science ✍️ written by Beth Dingley, Helene Hewitt, John Dunne and Eleanor O'Rourke Read here ⬇️
Happy to see the new #DestinE simulations out in the open! I’d strongly recommend trying the new Jupyter example notebooks, including lazy browsing: github.com/destination-... Looking forward to seeing what people will build and discover with this next generation of #ClimateDT simulations!
polytope-examples/climate-dt at main · destination-earth-digital-twins/polytope-examples
This repository describes the process for accessing Destination Earth DT data via the Polytope web service hosted on the LUMI Databridge. - destination-earth-digital-twins/polytope-examples
github.com
ECMWF@ecmwf.int · 3mo ago🌍🌐 New Climate Digital Twin simulations are now available, marking an important milestone in the EU’s Destination Earth (DestinE) initiative. Read more ➡️ destine.ecmwf.int/news/new-des...
If you are like me and prefer to read the typeset version of papers, here you go: the final version is out fresh from the print 😊 www.nature.com/articles/s43...
If you are like me and prefer to read the typeset version of papers, here you go: the final version is out fresh from the print 😊 www.nature.com/articles/s43...
🚨 New paper: Three decades of simulating global temperature patterns with coupled global climate models 💡 Some of the latest km-scale models perform similarly to obs 💡 Reference choice starts to dominate for the latest models 💡 Resolution matters but is not everything www.nature.com/articles/s43...
Three decades of simulating global temperature patterns with coupled global climate models - Communications Earth & Environment
Increasing spatial resolution of climate models has the potential to improve the performance of simulating global surface temperature patterns, based on comparisons between kilometer-scale models, est...
nature.com
Modern climate models are more accurate than ever : Newsroom : University of Hamburg share.google/SQofonppS6Nl...
Modern climate models are more accurate than ever
share.google
This figure from the supplement of our new paper (see quoted post for details) shows a quite interesting side-result that reverses traditional model evaluation: We investigate which observation-based dataset is closest to how many models and find systematic changes over model generations.
Lukas Brunner@lukasbrunner.bsky.social · 4mo ago🚨 New paper: Three decades of simulating global temperature patterns with coupled global climate models 💡 Some of the latest km-scale models perform similarly to obs 💡 Reference choice starts to dominate for the latest models 💡 Resolution matters but is not everything www.nature.com/articles/s43...
🌡️ How good are #climate models, really? A new study by @lukasbrunner.bsky.social at #CLICCS @uni-hamburg.de examined 176 climate models from 30 years – and shows: the latest models come so close to reality that the measurement data, not the models, are now the limiting factor. 🧪 shorturl.at/j1kbs
Wie heiß wird es in der Sahara, wie kalt in der Antarktis? 🌡️ Klimamodelle berechnen die Temperatur-Landkarte der Erde. Aber wie gut sind diese? Eine Studie von Dr. @lukasbrunner.bsky.social zeigt: Im Schnitt sind die Temperatur-Landkarten der Klimamodelle deutlich genauer und zuverlässiger geworden.
Moderne Klimamodelle sind so genau wie noch nie
uni-hamburg.de
Hier geht's zur Pressemitteilung der @uni-hamburg.de über unser gerade erschienenes Papier zum Vergleich von globalen Klimamodellen in den letzten 3 Jahrzehnten. 🧑🎓 www.uni-hamburg.de/newsroom/pre...
Moderne Klimamodelle sind so genau wie noch nie
uni-hamburg.de
🚨 New paper: Three decades of simulating global temperature patterns with coupled global climate models 💡 Some of the latest km-scale models perform similarly to obs 💡 Reference choice starts to dominate for the latest models 💡 Resolution matters but is not everything www.nature.com/articles/s43...
Three decades of simulating global temperature patterns with coupled global climate models - Communications Earth & Environment
Increasing spatial resolution of climate models has the potential to improve the performance of simulating global surface temperature patterns, based on comparisons between kilometer-scale models, est...
nature.com
Letzte Woche durfte ich im Rahmen der Ringvorlesung zur Klimakrise der @uni-hamburg.de einen Vortrag zu den naturwissenschaftlichen Grundlagen der Klimakrise geben. Vielen Dank fürs Dabeisein und für die spannenden Fragen! Zum Nachschauen 👇 youtu.be/IuTXbtR1fFw #SystemChangeNotClimateChange
Naturwissenschaftliche Grundlagen der Klimakrise - Lukas Brunner | Fridays for Future
YouTube video by Fridays for Future DE
youtu.be
Am kommenden Dienstag gebe ich im Rahmen der Ringvorlesung zur Klimakrise an der @uni-hamburg.de einen Vortrag zu den physikalischen Grundlagen der Klimakrise. Der Vortrag ist öffentlich, also gerne vorbeikommen! Freue mich auf den Austausch! #climatecomms www.zfw.uni-hamburg.de/oeffentliche...
Physikalischen Grundlagen
zfw.uni-hamburg.de
Comparing global km-scale climate models to the resolution of coarser CMIP6 models. The video shows precipitation flux and accumulated precipitation for 2025, ending with a quantification of the difference in resolutions. Animation: Michael Böttinger (DKRZ) Method & paper: bsky.app/profile/luka...
Lukas Brunner@lukasbrunner.bsky.social · last yr.New paper in ERL! We study the importance of resolution for the representation of climate extremes. We use a new generation of km-scale models to show that many important details about temperature and precipitation extremes are hidden at CMIP6-like resolutions. doi.org/10.1088/1748...
Here's also my thread on the main findings: /profile/lukasbrunner.bsky.social/post/3lrsdhwkev22y
IOPP Environment and Energy@iopp-environment.bsky.social · 12mo ago🌍New #ERL study shows how coarser 100km climate model grids miss key extremes – especially in mountains and tropics. 🏔️🌧️Using 10km resolution, researchers outline improved insights into temperature & precipitation extremes📊🔥 🔗 iopscience.iop.org/article/10.1...
Amazing visualization of our recent sub-grid variability work by Michael Böttinger (DKRZ) 🤩. It shows the local detail in global precipitation resolved by km-scale models. From 0:50 in direct comparison to CMIP6-type 100km. From 2:07 the sub-grid variability is shown. 🤓🧪 youtu.be/fzA92tSF4ZM?...
The spatial representation of precipitation - a comparison between km-scale and CMIP-type model data
YouTube video by Deutsches Klimarechenzentrum
youtu.be
Vor einigen Wochen durfte ich im Rahmen des Formats Vorlesung für Alle der @uni-hamburg.de einen Vortrag zu Temperaturextremen geben. Die Aufzeichnung ist jetzt auf YouTube 👇 Danke für die Einladung und das Interesse! youtu.be/0KGi4Y6J2Ls?...
Vorlesung für alle - Wie ändern sich Wetterextreme mit dem Klimawandel?
YouTube video by Universität Hamburg
youtu.be
New paper in ERL! We study the importance of resolution for the representation of climate extremes. We use a new generation of km-scale models to show that many important details about temperature and precipitation extremes are hidden at CMIP6-like resolutions. doi.org/10.1088/1748...
Today is #ShowYourStripes Day! Created by @edhawkins.org, the warming stripes show temperature each year: blue for cool, white for avg, red for hot. Athletes are wearing them, knitters are knitting them, and cities are putting them on trams. Find + share your "stripes" here: showyourstripes.info
Annually the impact of climate change is pretty clear even locally. And even on a daily basis the signal starts to emerge! For regular updates on daily Hamburg temperatures in a long term context, check out my bot @weather-climate.bsky.social (still 🚧) 2025 so far: bsky.app/profile/weat...
Lukas Brunner@lukasbrunner.bsky.social · last yr.Temperature anomaly relative to 1951-2010 in Hamburg, Germany #ShowYourStripes day #SystemChangeNotClimateChange
Temperature anomaly relative to 1951-2010 in Hamburg, Germany #ShowYourStripes day #SystemChangeNotClimateChange
The first 3 eps of TOTALLY COOKED have landed! Check it out for weather & climate in a factual, relatable & often humorous way. Available below, & where you get your podcasts. Like, follow & share. Let's tackle the climate crisis together. #totallycooked www.21centuryweather.org.au/engage/total...
Totally Cooked: The Weather & Climate Podcast
The climate is changing. So is the conversation. Totally Cooked is a podcast about weather, climate change, and what it all means for life on Earth.
21centuryweather.org.au
@cenunihh.bsky.social climate visualization lab has created this nice animation of the resolution effect on climate extremes! 🤩 Comparison of CMIP6-like 100km and the new 10km for the example of TXx (hottest day in the year). Details in the paper: doi.org/10.1088/1748... youtu.be/R5laSSVHUAk?...
Next generation global models reveal new spatial details of temperature extremes
YouTube video by CEN Climate Visualization Laboratory
youtu.be
Resolution matters: Extreme temperatures in e.g. Indian cities can be underestimated by up to 10°C, a paper by @lukasbrunner.bsky.social shows. High-res climate models (<10 km) reveal that important details about extremes are hidden at lower resolutions. iopscience.iop.org/article/10.1...
