Update 2025.md (#248)

* Update 2025.md

* Update 2025.md

* GitHub Action: Apply external link format

* Update 2025.md

* GitHub Action: Apply external link format

* Update 2025.md

* GitHub Action: Apply external link format

* Update 2025.md

* GitHub Action: Apply external link format

* Update 2025.md

* GitHub Action: Apply external link format

* Update 2025.md

---------

Co-authored-by: jonasjucker <[email protected]>

docs/events/IUW/2025.md

@@ -2,9 +2,35 @@
 
 *4 February 2025, ETH*
 
-The program will include both talks and extended poster sessions. Talks will be limited to a few keynote presentations.
-The length of the talks is flexible, , with each talk lasting between 10 and 30 minutes. The authors of the posters will have the opportunity to present their work during the poster session.
+[**Program as pdf** :material-download:](https://polybox.ethz.ch/index.php/s/ter5IrhnER0XXvg){:target="_blank"}
 
-Review last year's [contributions](2024.md) for inspiration.
-
-Please register for the workshop by sending an email to jonas.jucker(at)c2sm.ethz.ch by 18 December 2024.
+## Talks
+- [Simulations of present and future air quality with ICON-ART :material-download:](https://polybox.ethz.ch/index.php/s/2opiY8mKkP9jbwp){:target="_blank"}- Corina Keller, EMPA
+- [Seamless weather forecasting at MeteoSwiss :material-download:](https://polybox.ethz.ch/index.php/s/Jjl2uwaUFKy3zNw){:target="_blank"} – Verena Bessenbacher, MeteoSwiss
+- [On the use of ICON for operational snow hydrological forecasting in Switzerland :material-download:](https://polybox.ethz.ch/index.php/s/Yr9FrIBJM8oazET){:target="_blank"} - Jan Magnusson, SLF
+- [Climate response to biodiversity scenarios over Europe in COSMO-CLM2 :material-download:](https://polybox.ethz.ch/index.php/s/xfm9gb4D9skvMHi){:target="_blank"} - Petra Sieber, ETHZ
+- [Chasing ice crystals: Lagrangian trajectories in ICON-LES for investigating ice crystal growth :material-download:](https://polybox.ethz.ch/index.php/s/iKYcwFpga4xpw6u){:target="_blank"} - Nadja Omanovic, ETHZ
+
+## Poster
+
+### Session 1
+- [European CO2 inversions with ICON-ART using an Ensemble Kalman Smoother :material-download:](https://polybox.ethz.ch/index.php/s/rAdEFXToegne5Mb){:target="_blank"} - Erik Koene, EMPA
+- [The effect of 3°C global warming on hail over Europe in COSMO-CLM :material-download:](https://polybox.ethz.ch/index.php/s/KeWxeTCI5nXndJO){:target="_blank"} - Iris Thurnherr, ETHZ
+- [Strengths and weaknesses of ICON in the mountains: insights from snow models and satellite observations :material-download:](https://polybox.ethz.ch/index.php/s/YtbPUR9HLZryCI2){:target="_blank"} - Bertrand Cluzet, SLF
+- [Getting ICON-CLM Ready for GPU on the New Alps Computing System :material-download:](https://polybox.ethz.ch/index.php/s/4DWqi7aKOJzYXET){:target="_blank"} - Michael Jähn, C2SM
+- [Impact on Land-Cover Dataset on Weather Forecasts with the ICON Model :material-download:](https://polybox.ethz.ch/index.php/s/WaeRgq9zo6VMfda){:target="_blank"} - Andri Heeb, ETHZ
+- [Verification of hail in operational COSMO and ICON simulations vs. radar and crowd-sourced data :material-download:](https://polybox.ethz.ch/index.php/s/jZxfQIKJYxqAEPR){:target="_blank"} - Kilian Brennan, ETHZ & Martin Aregger, UNIBE
+
+### Session 2
+- [Machine independent testing of ICON :material-download:](https://polybox.ethz.ch/index.php/s/n6iSkDH9TftPM6J){:target="_blank"} - Annika Lauber, C2SM
+- [First application of FLEXPART-ICON for Swiss-scale Methane and Nitrous Oxide Emission Inversion :material-download:](https://polybox.ethz.ch/index.php/s/hfOOWK7f5lAlfGs){:target="_blank"} - Stephan Henne, EMPA
+- [Top-down estimates of CH4 and N2O emissions over Europe between 2010 and 2021 with ICON-ART :material-download:](https://polybox.ethz.ch/index.php/s/j8ycXITfC1r0ySr){:target="_blank"} - Joël Thanwerdas, EMPA
+- [Air-sea interaction in ICON :material-download:](https://polybox.ethz.ch/index.php/s/kP7Tu00RUJwmHUl){:target="_blank"} - Aaron Wienkers, ETHZ
+### Session 3
+
+- [Final steps towards the optimization of ICON-HAM on Alps :material-download:](https://polybox.ethz.ch/index.php/s/xYXU2V2TjGwrac9){:target="_blank"} - Mikael Stellio, MeteoSwiss
+- [Which scales are resolved in ICON at the hectometric range? A case study with the new mrCOSTS method :material-download:](https://polybox.ethz.ch/index.php/s/4h1lsfXNF00D1LL){:target="_blank"} - Brigitta Goger, C2SM
+- [A first look at MeteoSwiss’ Machine Learning Weather Forecasting Emulator :material-download:](https://polybox.ethz.ch/index.php/s/A1P4HCZg7fDdf8f){:target="_blank"} - Alberto Pennino, MeteoSwiss
+- [Assimilating 3D radar reflectivity observations in complex topography :material-download:](https://polybox.ethz.ch/index.php/s/mdzj4S3vR2QsbGk){:target="_blank"} - Alina Yapparova, MeteoSwiss
+- [Modelling atmospheric cycling of trace elements using ICON-ART – updates :material-download:](https://polybox.ethz.ch/index.php/s/D0ECwNgC5486Mzp){:target="_blank"} - Andrea Stenke, ETHZ
+- [New calibration of the microphysics to reduce localized precipitation maxima in complex terrain :material-download:](https://polybox.ethz.ch/index.php/s/egMaH86kqYU4qk2){:target="_blank"} - Lukas Jansing & David Leutwyler, both MeteoSwiss