The main focus is on the observational data, particularly on the observations referring to clouds and precipitation. The Observational Data Archive includes a wide range of different meteorological measurements, long term and campaign data, in situ and remote sensing, point and domain measurements, ground based and space borne, closed and ongoing
Forward operators translate the state of the atmosphere in the model into virtual measurements, which can be directly compared to real measurements. The project HD(CP)² will provide a framework which exploits the full potential of forward operators for a range of resolutions. The Forward Operator Inventory gives a first overview of existing and used operators in HD(CP)², as new developments and provides meta data, as simulated devices, model requirements, and contact person.