Studentische Seminare (IMK-TRO)

Ansprechpartner: Prof. Dr. P. Knippertz

Veranstaltungskalender

 
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Donnerstag, 21. März 2024
15:00 - 16:00 
(1) TBD (M) (2) TBD (M)
Seminar
Geb. 30.23, Raum 13/2 und online
(1) Nicolas Lo (2) Fabian Chow

If you are interested in the zoom link, please contact udgmm@student.kit.edu oder uioib@student.kit.edu.

Dienstag, 07. Mai 2024
15:45 - 16:45 
Towards machine-learning based Earth system models
Kolloquium
wird noch bekannt gegeben
Prof.. Chrstian Lessig, Otto-von-Guericke Universität Magdeburg

In the past year, it has been demonstrated that machine learning models trained on the ERA5 reanalysis can
outperform even the best conventional medium-range forecasting systems. One of the next frontiers is the
development of machine learning-based Earth system models that cover not only the atmosphere but also
the other subsystems of the Earth and that are able to represent processes on much wider range of scales in
space and time. This poses many challenges in terms of Earth system modeling, machine learning, and highperformance
computing, e.g. how training on many different datasets with different resolutions and quality
characteristics is possible. In my talk, I will discuss these challenges and first steps towards addressing
these. I will also present results on training directly from observations, which is a tantalizing information
source for building models that can potentially outperform conventional ones.

Dienstag, 18. Juni 2024
15:45 - 16:45 
The importance of mesoscale processes for the fate of trade cumulus clouds
Kolloquium
wird noch bekannt gegeben
Dr. Raphaela Vogel, Universität Hamburg

Mesoscale processes like cold pools and gust fronts occur everywhere on Earth and they are an essential element of severe storms. But now we realize that they might also be relevant for climate. The multi-scale interactions in which mesoscale processes are interwoven, from the mm-scale of rain drops to the large-scale circulation, were long out of the range accessible to both traditional Earth system models and high-resolution large-eddy simulations. Emerging tools like global coupled storm-resolving simulations, together with new observations and innovative methods to extract process-oriented products now offer the basis for critical advances in understanding the role of mesoscale processes for the radiative budget and hydrological cycle. In this presentation, I will show recent results demonstrating the importance of shallow mesoscale circulations and cold pools for cloud amount and cloud organization in the trades, and discuss two new tools that we’re developing to advance the physical understanding of the role of mesoscale processes for the fate of trade cumulus clouds. 
Mesoscale processes like cold pools and gust fronts occur everywhere on Earth and they are an essential element of severe storms. But now we realize that they might also be relevant for climate. The multi-scale interactions in which mesoscale processes are interwoven, from the mm-scale of rain drops to the large-scale circulation, were long out of the range accessible to both traditional Earth system models and high-resolution large-eddy simulations. Emerging tools like global coupled storm-resolving simulations, together with new observations and innovative methods to extract process-oriented products now offer the basis for critical advances in understanding the role of mesoscale processes for the radiative budget and hydrological cycle. In this presentation, I will show recent results demonstrating the importance of shallow mesoscale circulations and cold pools for cloud amount and cloud organization in the trades, and discuss two new tools that we’re developing to advance the physical understanding of the role of mesoscale processes for the fate of trade cumulus clouds.