Multi-year simulations at kilometre scale with the Integrated Forecasting System coupled to FESOM2.5 and NEMOv3.4

Rackow, Thomas; Pedruzo-Bagazgoitia, Xabier; Becker, Tobias; Milinski, Sebastian; Sandu, Irina; Aguridan, Razvan; Bechtold, Peter; Beyer, Sebastian; Bidlot, Jean; Boussetta, Souhail; Deconinck, Willem; Diamantakis, Michail; Dueben, Peter; Dutra, Emanuel; Forbes, Richard; Ghosh, Rohit; Goessling, Helge F.; Hadade, Ioan; Hegewald, Jan; Jung, Thomas; Keeley, Sarah; Kluft, Lukas; Koldunov, Nikolay; Koldunov, Aleksei; Kölling, Tobias; Kousal, Josh; Kühnlein, Christian; Maciel, Pedro; Mogensen, Kristian; Quintino, Tiago; Polichtchouk, Inna; Reuter, Balthasar; Sármány, Domokos; Scholz, Patrick; Sidorenko, Dmitry; Streffing, Jan; Sützl, Birgit; Takasuka, Daisuke; Tietsche, Steffen; Valentini, Mirco; Vannière, Benoît; Wedi, Nils; Zampieri, Lorenzo; Ziemen, Florian

doi:https://doi.org/10.5194/gmd-18-33-2025

Articles | Volume 18, issue 1

https://doi.org/10.5194/gmd-18-33-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-33-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 1

Model evaluation paper

|

10 Jan 2025

Model evaluation paper |

| 10 Jan 2025

Multi-year simulations at kilometre scale with the Integrated Forecasting System coupled to FESOM2.5 and NEMOv3.4

Thomas Rackow, Xabier Pedruzo-Bagazgoitia, Tobias Becker, Sebastian Milinski, Irina Sandu, Razvan Aguridan, Peter Bechtold, Sebastian Beyer, Jean Bidlot, Souhail Boussetta, Willem Deconinck, Michail Diamantakis, Peter Dueben, Emanuel Dutra, Richard Forbes, Rohit Ghosh, Helge F. Goessling, Ioan Hadade, Jan Hegewald, Thomas Jung, Sarah Keeley, Lukas Kluft, Nikolay Koldunov, Aleksei Koldunov, Tobias Kölling, Josh Kousal, Christian Kühnlein, Pedro Maciel, Kristian Mogensen, Tiago Quintino, Inna Polichtchouk, Balthasar Reuter, Domokos Sármány, Patrick Scholz, Dmitry Sidorenko, Jan Streffing, Birgit Sützl, Daisuke Takasuka, Steffen Tietsche, Mirco Valentini, Benoît Vannière, Nils Wedi, Lorenzo Zampieri, and Florian Ziemen

Data sets

IFS-FESOM nextGEMS Cycle 2 4.4 km 1-year simulation X. Pedruzo-Bagazgoitia et al. https://doi.org/10.21957/1n36-qg55

IFS-NEMO nextGEMS Cycle 2 9\,km baseline 2-year simulation X. Pedruzo-Bagazgoitia et al. https://doi.org/10.21957/x4vb-3b40

nextGEMS: output of the model development cycle 2 simulations for ICON and IFS K.-H. Wieners et al. https://doi.org/10.26050/WDCC/nextGEMS_cyc2

nextGEMS: output of the model development cycle 3 simulations for ICON and IFS N. Koldunov et al. https://doi.org/10.26050/WDCC/nextGEMS_cyc3

Namelist files and settings for multi-year km-scale nextGEMS Cycle 3 simulations with IFS-FESOM/NEMO T. Rackow et al. https://doi.org/10.5281/zenodo.10221652

Mixed layer depth climatology computed with a density threshold criterion of 0.03kg/m3 from 10 m depth value C. de Boyer Montegut https://doi.org/10.17882/91774

Model code and software

FESOM2.5 source code used in nextGEMS Cycle 3 simulations with IFS-FESOM Thomas Rackow et al. https://doi.org/10.5281/zenodo.10225419

Source code changes to the Integrated Forecasting System (IFS) for nextGEMS simulations Thomas Rackow et al. https://doi.org/10.5281/zenodo.10223576

gribscan (v0.0.10) T. Kolling https://doi.org/10.5281/zenodo.10625189

Short summary

Detailed global climate model simulations have been created based on a numerical weather prediction model, offering more accurate spatial detail down to the scale of individual cities ("kilometre-scale") and a better understanding of climate phenomena such as atmospheric storms, whirls in the ocean, and cracks in sea ice. The new model aims to provide globally consistent information on local climate change with greater precision, benefiting environmental planning and local impact modelling.