1. Atmospheric Dynamics and Predictability Branch Hans Ertel Centre for Weather Research Bonn Germany
2. Meteorologisches Institut Universität Bonn Germany
3. Deutscher Wetterdienst Offenbach Germany
4. Centre for High‐Performance Scientific Computing in Terrestrial Systems Jülich Germany
5. Agrosphere (IBG‐3), Institute of Bio‐ and Geosciences, Forschungszentrum Jülich Germany
6. Meteorologisches Institut der Ludwig‐Maximilians‐Universität München Germany
7. Department of Mathematics and Statistics University of Reading UK