ICON ComIn – the ICON Community Interface (ComIn version 0.1.0, with ICON version 2024.01-01)

Hartung, Kerstin; Kern, Bastian; Dreier, Nils-Arne; Geisbüsch, Jörn; Haghighatnasab, Mahnoosh; Jöckel, Patrick; Kerkweg, Astrid; Loch, Wilton Jaciel; Prill, Florian; Rieger, Daniel

doi:https://doi.org/10.5194/gmd-18-1001-2025

Articles | Volume 18, issue 4

https://doi.org/10.5194/gmd-18-1001-2025

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

https://doi.org/10.5194/gmd-18-1001-2025

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

Articles | Volume 18, issue 4

Development and technical paper

|

24 Feb 2025

Development and technical paper |

| 24 Feb 2025

ICON ComIn – the ICON Community Interface (ComIn version 0.1.0, with ICON version 2024.01-01)

Kerstin Hartung, Bastian Kern, Nils-Arne Dreier, Jörn Geisbüsch, Mahnoosh Haghighatnasab, Patrick Jöckel, Astrid Kerkweg, Wilton Jaciel Loch, Florian Prill, and Daniel Rieger

Supplement

https://doi.org/10.5194/gmd-18-1001-2025-supplement

Model code and software

ICON release 2024.01 ICON partnership (DWD; MPI-M; DKRZ; KIT; C2SM) https://doi.org/10.35089/WDCC/IconRelease01

ComIn ComIn authors https://gitlab.dkrz.de/icon-comin/comin

Short summary

The ICOsahedral Non-hydrostatic (ICON) model system Community Interface (ComIn) library supports connecting third-party modules to the ICON model. Third-party modules can range from simple diagnostic Python scripts to full chemistry models. ComIn offers a low barrier for code extensions to ICON, provides multi-language support (Fortran, C/C++, and Python), and reduces the migration effort in response to new ICON releases. This paper presents the ComIn design principles and a range of use cases.