News
July 18, 2024 - Guest lecture / Invited talk Universität Freiburg
ClimateGeography talk: Are we miscalculating how heatwaves change?
July 12, 2024 - Blog post on the nextGEMS blog
nextGEMS blog post about Brunner and Sippel (2023): Using Machine Learning to identify climate models
May 1, 2024 - New position at Universität Hamburg
Climate Extremes group, Research Unit Sustainability and Climate Risks: News article
April 26, 2024 - New publication
O’Reilly C., Brunner L., Qasmi S., Nogherotto R., Ballinger A., Booth B., Befort D., Knutti R., Schurer A., Ribes A., Weisheimer A., Coppola E., and McSweeney C. (2024): Assessing observational constraints on future European climate in an out-of-sample framework, npj Climate and Atmospheric Science, PDF Supplement
April 17, 2024 - Mentioned in Media
- Der Standard (in German): Hohe Wahrscheinlichkeit für noch extremere Hitzewellen in Europa
- Die Presse (in German): Forscher: Europa muss mit längeren und intensiveren Hitzewellen rechnen
- orf.at (in German): Europa drohen extreme Hitzewellen
April 15-19, 2024 - EGU24
Session convener: Regional Climate Modeling, Including CORDEX and Constraining Global Multi-Model Ensembles: Link
Oral presentation: Revealing a systematic bias in percentile-based temperature extremes (PDF)
Vienna, Austria | Abstract on the conference homepage: Link
Mentor in the EGU mentoring programme: Link
April 3-4, 2024 - Presentation Österreichischer Klimatag
Revealing a systematic bias in temperature extremes and its implications (PDF)
Vienna, Austria | Conference homepage (in German): Link
March 20, 2024 - Mentioned in Media
Die Presse (in German): Irrtum der Experten: Es gibt mehr Hitzetage
March 18, 2024 - New publication
Brunner L. and Voigt A. (2024): Pitfalls in diagnosing temperature extremes, Nature Communications, PDF, Supplement, Review files
Related material:
- Hajek S. (2024): Analyse eines Fehlers in der Definition der Hitzemetrik Cumulative Heat, Bachelor thesis supervised by L. Brunner and A. Voigt, PDF (in German)
- Meindl M. (2024): Changes in heatwave properties under climate change, Master’s thesis supervised by L. Brunner and A. Voigt, PDF
- Poster (PDF)
- Presentation (PDF)
- Short presentation (PDF)
Daily maximum air temperature over 30 seasonal cycles (thin black lines), thresholds (thick red line), exceedances (red shading), and monthly averaged frequencies (bars) for a selected grid cell in the North Atlantic (figure 1c in the main paper).
March 13, 2024 - Keynote Deutsche Klimatagung (Potsdam, Germany)
Conference homepage: 13. Deutsche Klimatagung
Systematic errors in temperature extreme definitions and their impacts (PDF)
March 4-8, 2024 - Participation 4th km-scale Hackathon (Hamburg, Germany)
February 13, 2024 - Talk Climate Analytics (Berlin, Germany)
Pitfalls in diagnosing temperature extremes
January, 2024 - PI project funded
- Title: High-resolution machine learning for the climate community in Austria (HighResLearn)
- Funding call: Austrian Climate Research Programme (ACRP) 2023
- Partners: University of Innsbruck, GeoSphere Austria, Change Centre Austria (CCCA)
- Cooperation: Klimadashboard - Verein zur Förderung datenbasierter Berichterstattung und Bewusstseinsbildung zur Klimakrise, University of Graz, Max-Planck-Institute for Meteorology (Hamburg), University of Leipzig
More information
(c) MPI-M/DKRZ
November 16, 2023 - Guest speaker in Green Finance seminar
Naturwissenschaftliche Grundlagen der Klimakrise
November 13, 2023 - Research price Vorarlberg for young researchers
Press release (in German): link
October 19, 2023 - Guest talk by Katharine Hayhoe
I managed to invite Katharine Hayhoe for a keynote on very short notice. Here’s a summary of her talk: link
August 23, 2023 - New publication
Merrifield A. L., Brunner L., Lorenz R., Humphrey V., and Knutti R. (2023): Climate model Selection by Independence, Performance, and Spread (ClimSIPS v1.0.1) for regional applications, Geosci. Model Dev., PDF, Supplement
August 24, 2023 - Food For Though session at the EFA23
Session on “Data sparks action: the role of information in tackling the climate crisis” together with David Jablonski
August 2023
Participation at the European Forum Alpbach 2023 (EFA23)
July 2023
Blog article about a visit at the Vienna Scientific Cluster during the Lecture Modelling and Data anaysis: Klimamodelle am Vienna Scientific Cluster
July 16, 2023 - Presentation at IUGG 2023
Session: Diagnosing and Reducing Errors and Biases in Weather and Climate Models
Distinguishing climate models on short time scales using a neural network
July 3, 2023 - New publication
Brunner L. and Sippel S. (2023): Identifying climate models based on their daily output using machine learning, Env. Data Sci., PDF, Supplement
Confusion matrix showing the frequency of predicted versus true labels. The main diagonal shows correct predictions using green shading, purple shading indicates misclassifications within a model family, and red shading indicates other misclassifications. Two cases are singled out: assignments within the HadGEM family and confusions between models and the two reanalyses ERA5 and MERRA2.
May 2023 - Research price 2023 for young scientists from the state of Vorarlberg
Press release: link (in German)
May 25, 2023 - Talk Leipzig Institute for Meteorology, Leipzig University
May 15, 2023 - Talk Institute for Meteorology Colloqium, FU Berlin
May 9, 2023 - Talk Climate statistics and extremes group, Universität Hamburg
May 2023 - Research stay FU Berlin
April 28, 2023 - Presentation at EGU23
Session: Machine Learning for Climate Science
Separation of climate models and observations based on daily output using two machine learning classifiers
April 21, 2023 - New publication
Palmer T. E., McSweeney C.F., Booth B. B. B., Priestley M. D. K., Davini P., Brunner L., Borchert L., and Menary M. B. (2023): Performance based sub-selection of CMIP6 models for impact assessments in Europe, Earth Syst. Dynam., PDF
March 24, 2023 - Invited talk Global Carbon Budget workshop
Online
Some practical thoughts on model weighting
January 18, 2023 - Guest speaker in Green Finance seminar
Vienna, Austria | u:find entry: Link
Naturwissenschaftliche Grundlagen der Klimakrise: PDF
January 13, 2023 - Klimaszenarien.AT kick-off
Online | News item (in German): Link
November 14 - 19, 2022 - Participation at the UN Climate Conference (COP27)
Sharm El-Sheikh, Egypt | Homepage: Link
univie Blog article: Link
November 7, 2022 - Article Rudolphina
Hitze, Dürre, Flut: Sind Katastrophen das neue Normal? (in German)
October 27, 2022 - Interview Ö1 Kinderuni
Wie entstehen Wolken? (in German)
October 10, 2022 - New publication
Gründemann G. J, van de Giesen N., Brunner L., and van der Ent R. (2022): Rarest rainfall events will see the greatest relative increase in magnitude under future climate change, communications earth & environment PDF
October 7, 2022 - Workshop Inspirationstag der Erzdiözese Wien
Vienna, Austria | Topic: Naturwissenschafltiche Grundlage der Klimakrise PDF
August 3, 2022 - New preprint
Palmer T. E., McSweeney C.F., Booth B. B. B., Priestley M. D. K., Davini P., Brunner L., Borchert L., and Menary M. B. (2022): Performance based sub-selection of CMIP6 models for impact assessments in Europe, Earth Syst. Dynam. Diss., PDF
July 11, 2022 - Participation kinderuni: Mittendrin im Klimalabor
Vienna, Austria | Homepage (German): Link
Picture: © Griwank
June 25, 2022 - New publication
Befort D. J., Brunner L., Borchert L. F., O’Reilly C. H., Mignot J., Ballinger A. P., Hegerl G. C., and Murphy J. M. (2022): Combination of decadal predictions and climate projections in time: Challenges and potential solutions, Geophys. Res. Lett. PDF
Example of inconsistencies introduced by concatenation of decadal predictions and climate projections. Time series of near-surface air temperatures over Northern Europe region (NEU) for a) uninitialized climate projections from 1976 to 2001 b) decadal predictions from 1976 to 1985 (initialized in 1975) and climate projections from 1986 to 2001.
June 28 - July 2, 2022 - Participation at the NextGEMS hackathon
Vienna, Austria
Picture: © NextGEMS
June 15 - 18, 2022 - Participation at the The Future of the Earth performance
Pratteln, Switzerland & virtual | Project homepage and live stream: Link
More impressions here
May 27, 2022 - Presentation at the EGU General Assembly 2022
Investigating 25 years of coupled climate modeling | Abstract: PDF
Vienna, Austria | Conference homepage: Link
May 19, 2022 - New preprint
Brunner L. and Sippel S. (2022): Separation of climate models and observations based on daily output using machine learning, submitted to Env. Data Sci. / available on EarthArXiv, PDF
Logistic regression coefficients learned from daily data in the period 1950-1999 and used to separate daily temperature maps from models and observations.
May 12, 2022 - Poster presentation at the Climate Informatics Conference
Classifying climate models based on temperature patterns from a single day using a convolutional neural network
Virtual | Conference homepage: Link
May 4, 2022 - Presentation at nextGEMS meeting
Separating models and observations based on daily temperatures using machine learning
Virtual | Project homepage: Link
May 4, 2022 - Presentation at the EUCP workshop 2022
Constraining European projections - EUCP progress towards a unified method (PDF)
Virtual | Project homepage: Link
April 21, 2022 - Poster presentation at the Austrian Klimatag 2022
Gewichtung von Klimamodellen reduziert die prognostizierte globale Erwärmung in CMIP6 (PDF)
Vienna, Austria | Conference homepage (in German): - Link
February 4, 2022 - Presentation at the DACH Quality control methods meeting
Constraining Future European Climate from GCMs - Methods, Results, and Ways Forward, PDF
Virtual
February 3 - 4, 2022 - Session chair and presentation at the CliMatters workshop
Uncertainty in climate modeling and projections (session) | Separating Uncertainties in Projections of Future Climate – Importance, Lessons, and Solutions, PDF
Virtual | Workshop homepage: Link
January 18, 2022 - Presentation at the University of Vienna Meteorological/Geophysical Colloquium
Weighting models by performance and independence - Effects on projections of future climate, PDF
Virtual | Department homepage: Link
Older (selection)
November 16, 2021 - Keynote at the EC-Earth meeting
Uncertainties in multi-model assessments of future climate, PDF
Virtual | Meeting homepage: Link
October 21, 2021 - Invited talk at the Wegener Center Common Space seminar (University of Graz)
Weighting models by performance and independence - Effects on projections of future climate, PDF
Virtual | Institute homepage: Link