ESM User Forum 2026

This meeting brings together researchers from the Earth System Modelling community as well as users of Jülich’s HPC systems.

This meeting brings together researchers from the Earth System Modelling community as well as users of Jülich’s HPC systems. It provides a platform to exchange experiences on novel HPC architectures, discuss recent developments within the community, and foster collaboration across disciplines. This course provides an overview of current developments at JSC and gives scientists working together in the Joint Lab ExaESM (https://www.exaesm.de) as well as in the Jülich MeteoCloud and various research projects the opportunity to discuss their specific issues and challenges.

This course takes place in the rotunda at JSC. We warmly encourage on-site participation to foster lively discussions and networking within the community. A hybrid option will be provided for those who are unable to attend in person. The course will be held in English.

Language:

This course is given in English.

Date:

29-30 June 2026

Thematic Sessions:

The programme will cover the following focus areas:

• AI Perspectives in Earth System Modelling
• JUPITER and JUREAP Experience
• Future Directions in tooling, workflows and data sciences

Preliminary Agenda:

Day 1 (Monday, June 29th)

General session

09:00 – 09:15       Welcome & Introduction (Lars Hoffmann)
09:15 – 09:45       JUPITER
09:45 – 10:15       What’s new in the HPC landscape of JSC? (Olaf Stein)
10:15 – 10:45       coffee break
10:45 – 11:00       Software stack (Sabine Grießbach)
11:00 – 11:20       JL-ExaESM & POF V (Lars Hoffmann)
11:20 – 12:00       Short updates of support projects EsiWACE & NatESM (Ling Zou & Sabine Grießbach)
12:00 – 12:30       Discussion

12:30 – 13:30       Lunch break

AI session

13:30 – 14:00       General AI support and tools (Stefan K)
13:50 – 14:10       WeatherGenerator (Jifeng Wang)
14:10 – 14:30       HClimRep (Savvas Melidonis)
14:30 – 14:50       DestinE Climate Emulator: Fast, Stable, Scenario-Aware (Fernando Iglesias-Suarez)
14:50 – 15:10       AI talk from Christopher Kadow ?
15:10 – 15:40       coffee break
15:40 – 16:00       AI-Driven emulation of atmospheric infrared radiative transfer (Yiran Zhang)
16:00 – 16:20       AICON-LAM developments (Sabrina Wahl)
16:20 – 16:50       Discussion
16:50 – 17:30       Supercomputer tour (Olaf Stein)

19:00                     Joint Dinner in Jülich

Day 2 (Tuesday, June 30th)

JUREAP and JUPITER experience

09:00 – 09:30       ICON (Daniel Klocke)
09:30 – 10:00       IFS (Nils Wedi)
10:00 – 10:20       TSMP
10:20 – 10:50       coffee break

Workflows and data

10:50 – 11:10       MESSy ComIn (Astrid Kerkweg)
11:10 – 11:30       Warmworld Easier
11:30 – 11:50       CI/CD workflow
11:50 – 12:10       CI/CD with exacb (Jayesh Badwaik)

12:10 – 13:00       Lunch break

13:00 – 13:20       Polytope
13:20 – 13:40       Data Services in DETECT (Amirhossein Nikfal)
13:40 – 14:00       Discussion