🎓 ICON Numerical Model Training 2026

Deutscher Wetterdienst (DWD), the Consortium for Small-scale Modeling (COSMO) and the Climate Limited-area Modelling (CLM) Community kindly invite you to the ICON-CLM Training Course. The aim of the course is to familiarize new users with the nonhydrostatic modelling framework ICON in climate limited-area mode (CLM)

The Numerical Model Training Course takes place at the DWD Headquarters in Offenbach, Germany from 23 to 25 June, 2026.

For the Numerical Model Training 2026, we offer the course:

• CLM - Climate limited-area mode for researchers using ICON in limited-area mode for climate simulations.

This course will start on Tuesday 23 June, 2026, 13 CEST.

The training course is directed towards experienced scientists.

Registration

The registration is open. Please use the registration form.

Application

The registration deadline is January 15, 2026, for participants who require a visa. They will receive a confirmation on the status of their application by 29 January 2026 at the latest.

All other participants can register until 31 March 2026 and will receive their confirmation shortly afterwards.

Due to the limited capacity of the class room, we might not be able to accept every application.

Please note that unfortunately we cannot provide financial support.

Visa

Depending on your country of origin, you might need a visa to enter Germany. If this is the case, we can support you by providing an invitation letter. Please use our visa form.

Prerequisites

The lessons, presentations and exercises will be held in English language. All slides will be in English. We expect a certain familiarity with:

• Unix / Linux basic commands including usage of shell scripts
• FORTRAN 90/95/2003, and
• Basic knowledge in geophysical fluid dynamics
• Please bring your own notebook! You will conduct the practical exercises on your own notebook

Practical Exercises CLM - Climate limited-area mode (preliminary planning)

• Installation of SPICE and running standard experiments
• Preparation of grid and external parameter files for a domain
• Visualization of simulation output
• Running ICON-CLM for new time period
• Running ICON-CLM for new model domain
• Running ICON-CLM with CMIP6-GCM data as forcing
• Running a nested simulation
• Evaluation of the simulation results

• Set-up model over your own research domain or CORDEX domain

Accommodation

Participants are kindly requested to make their own hotel accommodation bookings. For accommodation we recommend the following hotels that are close to the headquarters of Deutscher Wetterdienst.

• Best Western Macrander Hotel Frankfurt/Kaiserlei
• B&B Hotel Offenbach-Kaiserlei
• Holiday Inn Express Offenbach by IHG
• Leonardo Hotel Offenbach Frankfurt
• other hotels in Offenbach and surroundings