ICON

ICON (Icosahedral Nonhydrostatic Weather and Climate Model) is a global model suitable for climate and weather prediction at regional and global domains. It is a joint project of DWD , MPI-M and KIT .

To stay informed about what is going on in the ICON world and to get to know other ICON users, please attend our quarterly C2SM ICON meeting. Additionally, one can subscribe to the official ICON newsletter .

Further information about the ICON model can be found at the official web page .

Support status

C2SM facilitates the utilisation of ICON on the Alps and Euler computing platforms for the CPU and GPU architectures.

Supported release

The latest official ICON release is continuously being tested on both Santis (CSCS) and Euler (ETHZ) and receives patches when necessary.

Info

The latest ICON release is 2025.04.

Mailing list

If you use ICON, please follow these instructions to subscribe to our mailing list.

Toolset

In the Tools section, you will find relevant tools for working with ICON:

• Extpar : External parameters for the ICON grid (preprocessing)
• Processing Chain: Python workflow tool for ICON
• SPICE: Starter package for ICON-CLM experiments
• icon-vis: Python scripts to visualise ICON data
• Spack: Package manager for installing ICON

Projects

Learn more about ongoing projects involving ETHZ in the development of ICON:

• EXCLAIM
• ICON-HAMMOZ

Documentation

ICON documentation is available at:

• ICON Documentation
• ICON Tutorial (DWD)
• Getting Started with ICON
• MPI-M documentation

External Software

The following external software is useful for working with ICON data:

• CDO