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Brain Storms: Exploring the scientific work of nextGEMS in the first half of 2023

19. April 2024

From January to June 2023, the nextGEMS project assembled an extensive arrangement of scientific publications. In total, 12 research papers were published within nextGEMS in the first half of 2023. The studies utilized the Earth System Models (ESMs) that nextGEMS continues to develop, aiming to simulate climate more realistically: the Icosahedral Nonhy-drostatic (also known as ICON) and the Integrated Forecasting System (IFS) models.

Although the scientists behind these publications hold different affiliations, they are all part of the nextGEMS consorsium, which is composed of 26 institutions in 15 different countries.



Furthermore, the topics explored in the studies cover various enriching discussions in Climate Science, as well as groundbreaking advancements in the field. Some of the themes examined in the scientific reviews involve specialized analysis in ensemble forecasting, organized deep convection, the effects of drag to the Hadley cell, and more. Meanwhile, other papers cover broader aspects like the gap between climate science and decision-making processes; the mystery of why the ocean near the Angolan coast stays cooler than the open sea, or an automated method to optimize key parameters in the IFS model.

These are all the scientific publications within the nextGEMS project in the first half of 2023, by month:


  • Hohenegger, C., P. Korn, L. Linardakis, R. Redler, R. Schnur, P. Adamidis, J. Bao, S. Bastin, M. Behravesh, M. Bergemann, J. Biercamp, H. Bockelmann, R. Brokopf, N. Brüggemann, L. Casaroli, F. Chegini, G. Datseris, M. Esch, G. George, M. Giorgetta, O. Gutjahr, H. Haak, M. Hanke, T. Ilyina, T. Jahns, J. Jungclaus, M. Kern, D. Klocke, L. Kluft, T. Kölling, L. Kornblueh, S. Kosukhin, C. Kroll, J. Lee, T. Mauritsen, C. Mehlmann, T. Mieslinger, A. K. Naumann, L. Paccini, A. Peinado, D. S. Praturi, D. Putrasahan, S. Rast, T. Riddick, N. Roeber, H. Schmidt, U. Schulzweida, F. Schütte, H. Segura, R. Shevchenko, V. Singh, M. Specht, C. C. Stephan, J.-S. von Storch, R. Vogel, C. Wengel, M. Winkler, F. Ziemen, J. Marotzke, and B. Stevens (2023). “ICON-Sapphire: simulating the components of the Earth system and their interactions at kilometer and subkilometer scales”. In: Geoscientific Model Development 16.2, pp. 779–811. DOI: 10.5194/gmd-16-779-2023.


  • Ekblom, M., L. Tuppi, O. Räty, P. Ollinaho, M. Laine, and H. Järvinen (2023). “Filter Likelihood as an Observation-Based Verification Metric in Ensemble Forecasting”. In: Tellus A: Dynamic Meteorologyand Oceanography75.1, pp. 69–87. DOI: 10.16993/tellusa.96.


  • Flynn, C. M. and T. Mauritsen (2023). “Hadley Cell Size and Strength Responses Depend on Turbulent Drag”. In: Journal of the Atmospheric Sciences 80.4, pp. 1047–1064. DOI: 10.1175/jas- d- 22-0153.1.
  • Koldunov, N., T. Kölling, X. Pedruzo-Bagazgoitia, T. Rackow, R. Redler, D. Sidorenko, K.-H. Wieners, and F. A. Ziemen (2023). nextGEMS: output of the model development cycle 3 simulations for ICON and IFS. World Data Center for Climate (WDCC) at DKRZ. DOI: 10.26050/WDCC/nextGEMS_cyc3.
  • Wieners, K.-H., F. A. Ziemen, N. Koldunov, X. Predruzo-Bagazgoitia, T. Rackow, R. Redler, D. Sidorenko, and T. Kölling (2023). nextGEMS: output of the model development cycle 2 simulations for ICON and IFS. Zenodo. DOI: 10.26050/WDCC/nextGEMS\_cyc2.


  • Dingley, B., G. Dagan, P. Stier, and R. Herbert (2023). “The Impact of a Land-Sea Contrast on Convective Aggregation in Radiative-Convective Equilibrium”. In: Journal of Advances in Modeling Earth Systems 15.4. DOI: 10.1029/2022ms003249.
  • Kahn, R. A., E. Andrews, C. A. Brock, M. Chin, G. Feingold, A. Gettelman, R. C. Levy, D. M. Murphy, A. Nenes, J. R. Pierce, T. Popp, J. Redemann, A. M. Sayer, A. M. da Silva, L. Sogacheva, and P. Stier (2023). “Reducing Aerosol Forcing Uncertainty by Combining Models With Satellite and Within-The-Atmosphere Observations: A Three-Way Street”. In: Reviews of Geophysics 61.2. DOI: 10.1029/2022rg000796.
  • Baulenas, E., D. Bojovic, D. Urquiza, M. Terrado, S. Pickard, N. González, and A. L. S. Clair (2023). “User Selection and Engagement for Climate Services Coproduction”. In: Weather, Climate, and Society 15.2, pp. 381–392. DOI: 10.1175/wcas-d-22-0112.1.


  • Baulenas, E., G. Versteeg, M. Terrado, J. Mindlin, and D. Bojovic (2023). “Assembling the climate story: use of storyline approaches in climate-related science”. In: Global ChallengesDOI: 10.1002/gch2.202200183.
  • Tuppi, L., M. Ekblom, P. Ollinaho, and H. Järvinen (2023). “Simultaneous Optimization of 20 Key Parameters of the Integrated Forecasting System of ECMWF Using OpenIFS. Part I: Effect on Deterministic Forecasts”. In: Monthly Weather Review151.6, pp. 1325–1346. DOI: 10.1175/mwr-d-22-0209.1.
  • Körner, M., P. Brandt, and M. Dengler (2023). “Seasonal cycle of sea surface temperature in the tropical Angolan Upwelling System”. In: Ocean Science 19.1, pp. 121–139. DOI: 10.5194/os-19-121-2023.


  • Tuppi, L. (2023). “Algorithmic weather model optimisation based on ensemble forecasting”. PhD thesis. University of Helsinki.

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