Due to global warming, the North Atlantic Oscillation, an atmospheric circulation pattern that strongly influences European weather, is becoming more extreme in the summer, according to a new study. The researchers found evidence of increasing variability in both model simulations as well as historical data, and warned of more frequent and intense weather extremes in Europe.
Earth responds to temperature changes by emitting more or less thermal radiation into space. This mechanism, known as long-wave feedback, influences how strongly the planet responds to the increase in anthropogenic carbon dioxide. Using 30 years of reanalysis data, researchers have quantified the strength of this feedback for a cloud-free atmosphere based on long-term observations. The results suggest that the Earth is more sensitive to radiative forcing than previously thought.
The tropical Pacific not only impacts the weather in various regions of the world, but also determines the overall response of the climate system to anthropogenic carbon dioxide emissions. Thus, understanding the processes in this region is crucial for the development of medium- and long-term adaptation strategies. Currently, however, climate change in the tropical Pacific is unfolding in a way that climate researchers did not expect. But the working group of Sarah Kang, Director at the Max
… activities
2024 -- 2027: Lead of Working Package “Marine biogeochemistry” and member of scientific steering group in PalMod project Phase III.
2022 -- present: Coordinator of PalMod Ocean Biogeochemistry Model Intercomparison Project.
2022 -- 2023: Co-organiser of weekly Joint Seminars at Max Planck Institute for Meteorology.
2018 -- 2019: Organiser of Postdoc Days at Max Planck Institute for Meteorology.
Other professional activities
Education
2009.09 -- 2011.12: Master in Computational Fluid…
… H. J., Kim, K. B., Shin, H. H., Lim, J. M., Hong, J., & Lim, K. S. Height correction method based on the Monin–Obukhov Similarity Theory for better prediction of near-surface wind fields. Atmospheric Research. https://doi.org/10.1016/j.atmosres.2023.106882.
Hohenegger, C., Korn, P., Linardakis, L., Redler, R., Schnur, R., Adamidis, P., et al. (2023). ICON- Sapphire: simulating the components of the Earth System and their interactions at kilometer and subkilometer scales. Geoscientific Model…
…mus scholarship for study abroad at the École Normale Supérieure de Lyon
Apprenticeship as Journeyman Bespoke Shoemaker
Schuhmacherei Hans-Joachim Vauk, Neumünster
2012 – 2014
Vita
Subheader
Publications
Hohenegger, C., Winkler, M., et al. (2023). „ICON-Sapphire: simulating the components of the Earth system and their interactions at kilometer and subkilometer scales“. Geoscientific Model Development, 16 (2), 779-811. doi: 10.5194/gmd-16-779-2023 Winkler, M., et al. (2021). „Phase response…
… Nikolay Koldunov, Tobias Kölling, Xabier Pedruzo-Bagazgoitia, Thomas Rackow, René Redler, Dmitry Sidorenko, Karl-Hermann Wieners and Florian Andreas Ziemen, 2023: nextGEMS: output of the model development cycle 3 simulations for ICON and IFS. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/nextGEMS_cyc3
Karl-Hermann Wieners, Florian Ziemen, Nikolay Koldunov, Xabier Pedruzo-Bagazgoitia, Thomas Rackow, René Redler, Dmitry Sidorenko and Tobias Kölling, 2023:. nextGEMS: output of…
… Contributions
L. Schmidt, C. Hohenegger (2024) - Precipitation Enhancement over Tropical Land through the Lens of the Moisture-Precipitation Relationship, submitted to Quarterly Journal of the Royal Meteorological Society
L. Schmidt, C. Hohenegger (2023) - Constraints on the Ratio between Tropical Land and Ocean Precipitation Derived from a Conceptual Water Balance Model, Journal for Hydrometeorology 24, 1103–1117, DOI 10.1175/JHM-D-22-0162.1
L. Schmidt, C. Hohenegger - OCELAND: A…
… P. Preusse, M. A. Giorgetta: Changes of tropical gravity waves and the quasi-biennial oscillation in storm-resolving simulations of idealized global warming, Quarterly Journal of the Royal Meteorological Society, https://doi.org/10.1002/qj.4534, 2023.
I. Quaglia, C. Timmreck, U. Niemeier, D. Visioni, G. Pitari, C. Brühl, S. Dhomse, H. Franke, A. Laakso, G. Mann, E. Rozanov, T. Sukhodolov: Interactive Stratospheric Aerosol models' response to different amounts and altitudes of…
… Land surface and related interactions
PalMod - From the Last Interglacial to the Anthropocene - Modeling a Complete Glacial Cycle
Scalar - Quantifying millennial timescale grounding-line retreat in East Antarctica
Projects
Since December 2023
Research Scientist at Max Planck Institute für Meteorology, Germany
November 2019 - December 2023
Postdoc at Max Planck Institute for Meteorology, Germany
June 2017 - November 2019
Postdoc at University of Tübingen, Germany
November…
… ORCID https://orcid.org/0000-0002-5293-5604
Publications
Bastin, S., M. Claus, R. J. Greatbatch, P. Brandt (2023): Factors influencing the meridional width of the equatorial deep jets. Ocean Science, 19, https://doi.org/10.5194/os-19-923-2023.
Hohenegger, C., Korn, P., Linardakis, L., Redler, R., Schnur, R., Adamidis, P., Bao, J., Bastin, S., Behravesh, M., Bergemann, M., Biercamp, J., Bockelmann, H., Brokopf, R., Brüggemann, N., et. al (2023):…
