Understanding climate
for the benefit of society

Seminar: ICON: Towards vertical-integrated model configurations for numerical weather prediction, climate predictions and projections

Wolfgang Müller from Max-Planck Institute for Meteorology will give a seminar talk on Monday 3rd of June 2024


Seminar on June 3, 11:00-12:00, BCCR lecture room 4020, Jahnebakken 5. 



A wide range of important societal and economic applications on a national and international level strive to an integrated understanding and forecasting of weather and climate on all temporal and spatial scales. The global to regional model system ICON (Icosahedral Nonhydrostatic) has been applied to weather as well as to climate timescales with joint developments of the model infrastructure. However, ICON’s model configurations share the same dynamical core but differ substantially in their subgrid scale closures and physical parameterization packages, depending on whether they were designed for numerical weather prediction (NWP) or climate applications. Starting in 2020, a new modeling initiative has been launched as a joint project between climate modeling institutes and the Deutsche Wetterdienst, that “vertically” integrates NWP, climate predictions, climate projections and atmospheric composition modeling based on the ICON framework and targets a unified treatment of the respective subgrid-scale parametrizations (ICON-Seamless). ICON-Seamless aims at the development of coupled model configurations of ICON to conduct operational weather and ocean forecasts for several days, climate predictions with timescales up to 10 years ahead as well as climate projections, and to provide a model baseline for joint research for NWP and climate. Here, we illustrate the strategic direction of this modeling initiative and present the relatively new Earth System configurations for weather and climate, respectively, and first results.


Short bio

Müller holds a PhD in environmental and climate sciences at ETH Zürich. Since 2005 scientist at the Max-Planck Institute for Meteorology in Hamburg and since 2011 heading individual research groups in the ocean department. Since 2020 heading the research on Earth System model development and prediction with the aim to establish the ICON-based coupled Earth System model for climate prediction and projections. Scientific interests are on tropical and extra-tropical climate variability and assessment and prediction of European heat waves on a decadal scale.