Via this portal, large-volume datasets generated at the Physics Department of Ludwig-Maximilians-Universität München (LMU) are published according to the FAIR principles.

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Recent Uploads


Data for: Can AI-based weather prediction models simulate the butterfly effect? The role of architecture and implementation.

Selz, Tobias
2026 Dataset
The butterfly effect is a property of the atmosphere, where tiny-amplitude initial perturbations grow quickly in areas of convection and latent heat release, then spreading out and moving upscale, eventually affecting even the largest planetary scales. This process takes about two weeks and...
Butterfly effect
Error growth
Ensemble prediction
Artificial intelligence
Uploaded on March 30, 2026

PALM-LES dataset for evaluating the impact of radiative transfer solvers on shallow cumulus cloud development

Maier, Richard ; Jakub, Fabian ; Mayer, Bernhard
2026 Dataset
This dataset contains output from large-eddy simulations of shallow cumulus clouds, each driven by one of three different radiative transfer solvers. The simulations were performed with the PALM model on a grid with 100 m horizontal and 50 m vertical resolution. After an 11-hour spin-up period,...
meteorology
large-eddy simulation
atmosphere
clouds
convection
PALM-LES
shallow cumulus
radiative transfer
cloud-radiation interaction
delta-Eddington
TenStream
dynamic TenStream
Uploaded on March 12, 2026

Convection-permitting WRF simulations with 5 microphysics schemes over 30 days

Köcher, Gregor
2025 Dataset
This dataset contains Weather Research and Forecasting (WRF) model output with five different cloud microphysics schemes for 30 convective precipitation days in 2019 and 2020. A key feature is the large number of simulation days at high horizontal grid spacing (400 m) which allows for a...
Meteorology
Cloud microphysics
WRF
Numerical Weather Prediction
Large-Eddy-Simulation
Convection
Atmosphere
Clouds
Uploaded on September 30, 2025

A gridded 30-Day dataset of convective precipitation from radar and WRF simulations with 5 microphysics schemes

Köcher, Gregor
2025 Dataset
This dataset contains 30 days of model and radar data of convective precipitation over the Munich area gridded to the same Cartesian grid with 400 m horizontal grid spacing. A key feature of this data set is easy statistical comparison of simulated convective precipitation with polarimetric...
Meteorology
Cloud microphysics
WRF
Radar
Polarimetry
Numerical Weather Prediction
Large-Eddy-Simulation
Convection
Atmosphere
Clouds
Uploaded on September 30, 2025

Level 0 data for: A Microwave Scattering Database of Oriented Ice and Snow Particles: Supporting Habit-Dependent Growth Models and Radar Applications

von Terzi, Leonie
2025 Dataset
This publication contains a new database of radar-relevant optical properties for a wide range of ice crystal shapes and aggregates, computed using the discrete dipole approximation (DDA) at 5.6, 9.6, 35.6, and 94 GHz. The database includes over 2,600 individual crystals and 450 aggregates with...
discrete-dipole approximation
ice particle scattering properties
radar forward simulation
Uploaded on September 10, 2025