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
#SystemChangeNotClimateChange #OpenScience
More: https://lukasbrunner.github.io
Pinned
Lukas Brunner
@lukasbrunner.bsky.social
· Dec 28
Hello Bluesky! Follow me for updates on my work 👨💻 (climate extremes, future climate projections & their uncertainties, climate model evaluation), climate outreach 🗣️, open science 🔓, and some mountains 🏔️
Follow my bot @weather-climate.bsky.social for the most recent updates of daily temperatures
Follow my bot @weather-climate.bsky.social for the most recent updates of daily temperatures
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
youtu.be/IuTXbtR1fFw
#SystemChangeNotClimateChange
Naturwissenschaftliche Grundlagen der Klimakrise - Lukas Brunner | Fridays for Future
YouTube video by Fridays for Future DE
youtu.be
October 28, 2025 at 8:32 AM
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
youtu.be/IuTXbtR1fFw
#SystemChangeNotClimateChange
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...
Freue mich auf den Austausch! #climatecomms
www.zfw.uni-hamburg.de/oeffentliche...
Physikalischen Grundlagen
www.zfw.uni-hamburg.de
October 17, 2025 at 8:51 AM
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...
Freue mich auf den Austausch! #climatecomms
www.zfw.uni-hamburg.de/oeffentliche...
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...
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...
September 2, 2025 at 11:36 AM
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...
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...
Here's also my thread on the main findings: /profile/lukasbrunner.bsky.social/post/3lrsdhwkev22y
🌍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...
🔗 iopscience.iop.org/article/10.1...
August 19, 2025 at 4:20 PM
Here's also my thread on the main findings: /profile/lukasbrunner.bsky.social/post/3lrsdhwkev22y
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?...
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
August 18, 2025 at 12:19 PM
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?...
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?...
Local downpour near Oberstdorf, Germany ⛰️
August 3, 2025 at 5:12 PM
Local downpour near Oberstdorf, Germany ⛰️
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?...
youtu.be/0KGi4Y6J2Ls?...
Vorlesung für alle - Wie ändern sich Wetterextreme mit dem Klimawandel?
YouTube video by Universität Hamburg
youtu.be
July 28, 2025 at 3:57 PM
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?...
youtu.be/0KGi4Y6J2Ls?...
Reposted by Lukas Brunner
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...
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...
June 17, 2025 at 10:56 AM
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...
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...
Reposted by Lukas Brunner
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
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
June 21, 2025 at 3:17 PM
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
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...
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...
Temperature anomaly relative to 1951-2010 in Hamburg, Germany
#ShowYourStripes day #SystemChangeNotClimateChange
#ShowYourStripes day #SystemChangeNotClimateChange
June 21, 2025 at 3:57 PM
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...
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...
Temperature anomaly relative to 1951-2010 in Hamburg, Germany
#ShowYourStripes day #SystemChangeNotClimateChange
#ShowYourStripes day #SystemChangeNotClimateChange
June 21, 2025 at 3:28 PM
Temperature anomaly relative to 1951-2010 in Hamburg, Germany
#ShowYourStripes day #SystemChangeNotClimateChange
#ShowYourStripes day #SystemChangeNotClimateChange
Reposted by Lukas Brunner
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...
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.
www.21centuryweather.org.au
June 20, 2025 at 3:58 AM
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...
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...
@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?...
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
June 18, 2025 at 5:16 PM
@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?...
Details in the paper: doi.org/10.1088/1748...
youtu.be/R5laSSVHUAk?...
Reposted by Lukas Brunner
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...
June 18, 2025 at 12:48 PM
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...
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...
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...
June 17, 2025 at 10:56 AM
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...
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...
Reposted by Lukas Brunner
#EGU25 is about to start!
If you're there, check out our session on High-impact Climate Extremes on Tuesday, room 🟨 F1
🧪: meetingorganizer.copernicus.org/EGU25/sessio...
With many exciting talks, including the CL Division Outstanding ECS Award Lecture by
@kornhuber.bsky.social
If you're there, check out our session on High-impact Climate Extremes on Tuesday, room 🟨 F1
🧪: meetingorganizer.copernicus.org/EGU25/sessio...
With many exciting talks, including the CL Division Outstanding ECS Award Lecture by
@kornhuber.bsky.social
April 27, 2025 at 12:05 PM
#EGU25 is about to start!
If you're there, check out our session on High-impact Climate Extremes on Tuesday, room 🟨 F1
🧪: meetingorganizer.copernicus.org/EGU25/sessio...
With many exciting talks, including the CL Division Outstanding ECS Award Lecture by
@kornhuber.bsky.social
If you're there, check out our session on High-impact Climate Extremes on Tuesday, room 🟨 F1
🧪: meetingorganizer.copernicus.org/EGU25/sessio...
With many exciting talks, including the CL Division Outstanding ECS Award Lecture by
@kornhuber.bsky.social
Great workshop on atmospheric temperature changes by @wcrpclimate.bsky.social in Graz! Thanks for including me in this interesting and insightful exchange!
👀 Currently happening at Wegener Center:
20 international experts coming together in a workshop on Atmospheric Temperature Changes and their Drivers 🌏🌡️ as part of APARC (Amospheric Processes and their Role in Climate), a core project of @wcrpclimate.bsky.social 👉 www.aparc-climate.org
20 international experts coming together in a workshop on Atmospheric Temperature Changes and their Drivers 🌏🌡️ as part of APARC (Amospheric Processes and their Role in Climate), a core project of @wcrpclimate.bsky.social 👉 www.aparc-climate.org
April 25, 2025 at 8:50 PM
Great workshop on atmospheric temperature changes by @wcrpclimate.bsky.social in Graz! Thanks for including me in this interesting and insightful exchange!
Reposted by Lukas Brunner
Let me very warmly recommend putting our Up-Goer Five session into your EGU25 calendar! I mean, just have a look at these amazing abstract titles (using only the 1000 most used English words).
I can guarantee that this will be an extremely informative and fun session!
🤓🧑🎓
#EGU25 @egu.eu
I can guarantee that this will be an extremely informative and fun session!
🤓🧑🎓
#EGU25 @egu.eu
April 4, 2025 at 11:50 AM
Join us on Friday during #EGU25 for an interesting session on New developments in Earth system modelling! We will cover various topics from advances in modelling to model evaluation.
We are also honored to have Shuting Yang as a solicited speaker!
👇
meetingorganizer.copernicus.org/EGU25/sessio...
We are also honored to have Shuting Yang as a solicited speaker!
👇
meetingorganizer.copernicus.org/EGU25/sessio...
April 8, 2025 at 6:12 AM
Join us on Friday during #EGU25 for an interesting session on New developments in Earth system modelling! We will cover various topics from advances in modelling to model evaluation.
We are also honored to have Shuting Yang as a solicited speaker!
👇
meetingorganizer.copernicus.org/EGU25/sessio...
We are also honored to have Shuting Yang as a solicited speaker!
👇
meetingorganizer.copernicus.org/EGU25/sessio...
Reposted by Lukas Brunner
This is genius! so creative and also important for how we communicate our science
April 4, 2025 at 6:35 PM
This is genius! so creative and also important for how we communicate our science
Reposted by Lukas Brunner
Super excited to be presenting our ensemble boosting work, 'Imagine rain falling in a different place', in this session:
April 4, 2025 at 12:05 PM
Super excited to be presenting our ensemble boosting work, 'Imagine rain falling in a different place', in this session:
Let me very warmly recommend putting our Up-Goer Five session into your EGU25 calendar! I mean, just have a look at these amazing abstract titles (using only the 1000 most used English words).
I can guarantee that this will be an extremely informative and fun session!
🤓🧑🎓
#EGU25 @egu.eu
I can guarantee that this will be an extremely informative and fun session!
🤓🧑🎓
#EGU25 @egu.eu
April 4, 2025 at 11:50 AM
In 2025 so far almost 20% of days in Hamburg have been warmer than the 90th percentile of the 1940-2024 climatology.
More than 60% have been warmer than the mean.
More than 60% have been warmer than the mean.
Tägliche Mitteltemperatur in Hamburg bis Mo 10. Mar 2025
Mittlere Anomalie von 1. Jan bis 10. Mar 2025: +1.5°C
Mittlere Anomalie von 1. Jan bis 10. Mar 2025: +1.5°C
March 17, 2025 at 2:27 PM
In 2025 so far almost 20% of days in Hamburg have been warmer than the 90th percentile of the 1940-2024 climatology.
More than 60% have been warmer than the mean.
More than 60% have been warmer than the mean.
Apply for a scholarship for the European Forum Alpbach! Great opportunity for interesting discussions beyond topical silos. 🗣️🌎
There are several options for scholarships, if you are connected to Vorarlberg consider applying here:
www.club-alpbach-vorarlberg.at/bewerbungspr...
There are several options for scholarships, if you are connected to Vorarlberg consider applying here:
www.club-alpbach-vorarlberg.at/bewerbungspr...
Bewerbungsprozess – Club Alpbach Vorarlberg
www.club-alpbach-vorarlberg.at
March 5, 2025 at 6:20 AM
Apply for a scholarship for the European Forum Alpbach! Great opportunity for interesting discussions beyond topical silos. 🗣️🌎
There are several options for scholarships, if you are connected to Vorarlberg consider applying here:
www.club-alpbach-vorarlberg.at/bewerbungspr...
There are several options for scholarships, if you are connected to Vorarlberg consider applying here:
www.club-alpbach-vorarlberg.at/bewerbungspr...
Reposted by Lukas Brunner
Zum dreijährigen Geburtstag haben wir Klimadashboard.at und Klimadashboard.de neu gestaltet und mit vielen neuen Features ausgestattet:
💥 neues Design
📬 aktuelle Klimaberichterstattung
🇬🇧 english translations
🌚 dark mode
🚀 ...und vieles mehr!
💥 neues Design
📬 aktuelle Klimaberichterstattung
🇬🇧 english translations
🌚 dark mode
🚀 ...und vieles mehr!
Startseite | Klimadashboard Österreich
Wissenschaftsbasiert. Transparent. Unabhängig.Bekannt aus DER STANDARD, ORF, APA, Stern.de.
Klimadashboard.at
February 18, 2025 at 3:32 PM
Zum dreijährigen Geburtstag haben wir Klimadashboard.at und Klimadashboard.de neu gestaltet und mit vielen neuen Features ausgestattet:
💥 neues Design
📬 aktuelle Klimaberichterstattung
🇬🇧 english translations
🌚 dark mode
🚀 ...und vieles mehr!
💥 neues Design
📬 aktuelle Klimaberichterstattung
🇬🇧 english translations
🌚 dark mode
🚀 ...und vieles mehr!