2026

• Athanasiadis, P. J., Nicolì, D., Giaquinto, D., Patrizio, C., Yeager, S., Hermanson, L., and Pohlmann, H., 2026: The NAO decadal predictability determined by initial ocean heat content anomalies in the subpolar North Atlantic — SST gradients playing a key role., EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-16494, https://doi.org/10.5194/egusphere-egu26-16494

2025

• Athanasiadis, P. J., D. Nicoli, D. Giaquinto, C. Patrizio, S. Yeager, L. Hermanson, H. Pohlmann, 2025: The NAO decadal predictavbility determined by the initial ocean heat content in the subpolar North Atlantic. Open Workshop on Understanding and Predicting Annual to Multi-Decadal Climate Variations, Bologna, Italy & online,  18–20 November, 2025, https://www.wcrp-esmo.org/calendar/open-workshop-upcliv
• Nicoli, D., S. Roncoroni, W. A. Mueller, H. Pohlmann, S. Brune, M. Donat, R. Mahmood, S. Yeager, W. J. Merryfield, R. Sospedra-Alfonso, P. J. Athanasiadis, 2025: Skill assessment of a multi-system ensemble of initialized 20-year predictions. EGU General Assembly 2025, Vienna, Austria, 27 Apr - 2 May 2025, EGU25-11024, https://doi.org/10.5194/egusphere-egu25-11024
• Nicoli, D., S. Roncoroni, W. A. Mueller, H. Pohlmann, S. Brune, M. Donat, R. Mahmood, S. Yeager, W. J. Merryfield, R. Sospedra-Alfonso, P. J. Athanasiadis, 2025: Skill assessment of a multi-system ensemble of initialized 20-year predictions. Open Workshop on Understanding and Predicting Annual to Multi-Decadal Climate Variations, Bologna, Italy & online,  18–20 November, 2025, https://www.wcrp-esmo.org/calendar/open-workshop-upcliv
• Nicoli, D., S. Roncoroni, W. A. Mueller, H. Pohlmann, S. Brune, M. Donat, R. Mahmood, S. Yeager, W. J. Merryfield, R. Sospedra-Alfonso, P. J. Athanasiadis, 2025: Skill assessment of a multi-system ensemble of initialized 20-year predictions. AGU Annual Meeting, New Orleans, USA,  15–19 December, 2025, https://www.agu.org/annual-meeting
• Pohlmann, H., S. Brune, J.Bader, D. Krieger, D. Yu, J. Baehr, W. Müller, 2025: Coming Decade: Coupled data assimilation with ICON XPP and preliminary hindcasts. ICON-Seamless All Hands Meeting, DWD, Offenbach, 15 - 16 October 2025. https://www.icon-model.org/events/icon-seamless-meeting
• Polkova, I., S. Brune, C. Sgoff, K. Fröhlich, N. Noll, L. Reißig, T. Hempel, H. Pohlmann, M. Klockmann, J. Baehr, B. Früh, 2025: New assimilation experiments with ICON-XPP and their diagnostics for the DWD decadal predictions. Open Workshop on Understanding and Predicting Annual to Multi-Decadal Climate Variations, Bologna, Italy & online,  18–20 November, 2025, https://www.wcrp-esmo.org/calendar/open-workshop-upcliv
• Yu, D., D. Dommenget, H. Pohlmann, W. Müller, 2025: Imroving ENSO simulation through optimization of atmospheric parameterizations in the ICON XPP Earth System Model. EGU General Assembly 2025, Vienna, Austria, 27 Apr - 2 May 2025, EUG25-7893, https://doi.org/10.5194/egusphere-egu25-7893

2024

• Pohlmann, H., D. Dommenget, X. Zhu, W. A. Müller, 2024: ENSO tuning in ICON-Seamless. ICON/COSMO/CLM/ART USER Seminar (ICCARUS), DWD, Offenbach, Germany, 4-6 March 2024, https://www.icon-model.org/events/iccarus-2024
• Pohlmann, H. and Müller, W. A., 2024: The North Atlantic climate variability in single-forcing large ensemble simulations with MPI-ESM-LR, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-1411, https://doi.org/10.5194/egusphere-egu24-1411
• Pohlmann, H., Müller, W. A., Athanasiadis, P., 2024: Opportunities and challeges of seasonal-to-decadal predictions of European mean climate and extremes. ASPECT Workshop for National Met Services. Online, 22-23 October 2024, https://www.aspect-project.eu/from-seasons-to-decades-a-workshop-for-national-meteorological-services/
• Polkova, I. and Co-Authors, 2024: Initialization shock in the ocean circulation reduces skill in decadal predictions of the North Atlantic subpolar gyre. EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-15358, https://doi.org/10.5194/egusphere-egu24-15358
• Polkova, I., and Co-Authors, 2024: Initialization shock in the ocean circulation reduces skill in decadal predictions of the North Atlantic subpolar gyre. Workshop on Climate Predicon and Services over the Atlantic-Arctic region, Bergen, Norway, 27-30 May 2024, https://bcpu.w.uib.no/workshop-may2024/
• Rani, R., et al. 2024: Comparison between non orographic gravity wave drag parameterizations used in QBOi, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-2472, https://doi.org/10.5194/egusphere-egu24-2472
• Sgoff, C., H. Pohlmann, S. Brune, T. Van Pham, A. Schneidereit, T. Steinert, K. Fröhlich, 2024: Weakly coupled data assimilation for climate predictions with ICON-Seamless. ICON/COSMO/CLM/ART USER Seminar (ICCARUS), DWD, Offenbach, Germany, 4-6 March 2024, https://www.icon-model.org/events/iccarus-2024
• Sgoff, C., H. Pohlmann, S. Brune, T. Van Pham, A. Schneidereit, T. Steinert, K. Fröhlich, 2024: Weakly coupled data assimilation for climate predictions with ICON-Seamless. Workshop on Climate Predicon and Services over the Atlantic-Arctic region, Bergen, Norway, 27-30 May 2024, https://bcpu.w.uib.no/workshop-may2024/
• Sgoff, C., H. Pohlmann, S. Brune, T. Van Pham, A. Schneidereit, T. Steinert, K. Fröhlich, 2024: Weakly coupled data assimilation for climate predictions with ICON-XPP. EMS Annual Meeting, Barcelona, Spain, 2-6 September 2024, https://meetingorganizer.copernicus.org/EMS2024/EMS2024-950.html

2023

• Spiegl, T., F. Schmidt, U. Langematz, W. Huo, S. Wahl, K. Matthes J. Kröger, H. Pohlmann, 2023: The response in the Tropics to decadal and centennial solar variability. IUGG, 11.-22. July 2023, Berlin, Germany, https://www.iugg2023berlin.org

2022

• Düsterhus, A., L. Borchert, B. Meyer, V. Koul, H. Pohlmann, S. Brune, J. Baehr, 2022: What can the last century teach us about climate models? EGU, https://doi.org/10.5194/egusphere-egu22-5377
• Früh, B., R. Potthast, W. Müller, P. Korn, S. Brienen, K. Fröhlich, J. Helmert, M. Köhler, S. Lorenz, T. v. Pham, H. Pohlmann, L. Schlemmer, R. Schnur, J.-P. Schulz, C. Sgoff, B. Vogel, R. Wirth, G. Zängl, 2022: ICON-Seamles, the development of a novel earth system model based on ICON from time scales from weather to climate. EMS, https://meetingorganizer.copernicus.org/EMS2022/EMS2022-292.html
• Pohlmann, H., . Sgoff, K. Fröhlich, S. Brune, J. Jungclaus, J. Baehr, 2022: Ocean data assimilation in ICON-ESM for climate predictions. ICON/COSMO/CLM/ART USER Seminar (ICCARUS), DWD, Offenbach, Germany, 7-11 March 2022, https://www.dwd.de/EN/specialusers/research_education/seminar/2022/iccarus2022/iccarus_2022_en.html
• Potthast, R., W. Müller, B. Früh, P. Korn, S. Brienen, K. Fröhlich, J. Helmert, M. Köhler, S. Lorenz, T. van Pham, H. Pohlmann, L. Schlemmer, R. Schnur, J.-P. Schulz, C. Sgoff, B. Vogel, R. Wirth, G. Zängl, 2022: ICON-seamless: die Entwicklung eines neuen Erdsystemmodells basierend auf ICON für alle Zeitskalen, von Wettervorhersagen bis Klimaprognosen. DACH, https://doi.org/10.5194/dach2022-28

2021

• Sebastian, S., H. Pohlmann, K. Fröhlich, J. Baehr, 2021: Model-consistent ocean data assimilation for seasonal to decadal climate prediction. Deutsche Klimatagung, 15.-13. March 2021, Hamburg, Germany, https://www.dkt-12.de
• Düsterhus, A., Borchert, L., Koul, V., Pohlmann, H., and Brune, S., 2021: Variability of the North Atlantic Oscillation in the 20th century, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-12580, https://doi.org/10.5194/egusphere-egu21-12580

My main research interests lie in the development of seasonal and decadal climate prediction systems. Basis for the current climate predictions is the ICON XPP (Icosahedral Nonhydrostatic model for Extended Predictions and Projections) Earth system model that is jointly developed with the DWD (Deutscher Wetterdienst), the MPI-M (Max Planck Institute for Meteorology) and other institutes in the CAP7 project for the CMIP7 (Coupled Model Intercomparison Project).  Climate predictions over the coming seasons are  developed in the framework of the Copernicus C3S project and longer predictions in the Coming Decade project in close collaboration with the DWD (Deutscher Wetterdienst) and other institutes.

Ongoing projects I am involved:

• Copernicus C3S
• Coming Decade
• ASPECT
• EPESC

Previous projects:

• MiKlip
• SPECS
• COMBINE
• THOR
• ENSEMBLES
• and others

present Climate Modelling, Institute of Oceanography, University of Hamburg, Germany

2023-2026 Max Planck Institute for Meteorology, Hamburg, Germany

2019-2023 Deutscher Wetterdienst, Hamburg, Germany

2011-2019 Max Planck Institute for Meteorology, Hamburg, Germany

2007-2011 Met Office Hadley Centre, Exeter, UK

2006-2007 Max Planck Institute for Meteorology, Hamburg, Germany

2005-2006 Dalhousie University, Halifax, Canada

2000-2005 PhD, Mechanisms and predictability of North Atlantic-European climate, Max Planck Institute for Meteorology, Hamburg

1993-2000 Diploma, Variability of sea-ice in the Southern Ocean, University of Kiel, Kiel