Abstract
The regional-scale “Europa-Modell“ (EUM) is presented as part of a new NWP system designed at the Deutscher Wetterdienst. The model considers all relevant subgrid-scale processes placing special emphasis on turbulent fluxes, soil processes, and the hydrological cycle. In particular the prediction of cloud water is used to parameterize the formation of rain and snow. Examples of forecast experiments demonstrate the model’s capability to simulate regional-scale meteorological processes and structures (e.g. fronts, smog situation). Using EUM as a research tool the development of mesoscale structures, the long-term behavior, and the contribution by different cloud physical processes to precipitation are studied. Finally, the application of the model output as a data source for follow-up models is discussed and a method to generate quasi-diagnostic data sets covering longer periods presented.
