DWD (Deutscher Wetterdienst, German Meteorological Service) is the national meteorological authority in Germany to provide meteorological basis information.

The results obtained by numerical weather prediction (NWP) are an important component of this basis material. DWD has more than 30-years of experience in the development of NWP models. The research department holds the responsibility for the development and testing of state-of-the-art NWP models. This task is executed both in-house and through co-operation with various other institutes. The output of the NWP models is used by several follow-up models, such as wave models, flood forecasting systems and radioactive/chemical transport models. NWP model output also forms an important resource for the generation of weather forecasts for end users and meteorological information for other service providers.

The Meteorological Observatory Potsdam (MOP) of the Deutscher Wetterdienst consists of three groups, radiation fluxes on the ground and in the atmosphere, passive remote sensing, radiation modelling and process validation.

The microwave instruments involved in CLIWA-NET are a part of a remote sensing facility which includes a Fourier-Transform-Infra-Red (FTIR) emission spectrometer and laser ceilometer. Efforts are made to combine information from different data sources with the aim of monitoring the thermal and moisture structure routinely.

Another important task of this group is directed on the establishment of the Meteorological Observatory Lindenberg (MOL) as a powerful European validation site within the Global Water Vapour Project(GVaP) of the World Climate Research Programme.