CAL/VAL Preparatory Activities for The EPS-SG MWI and ICI Instruments

The second generation of the EUMETSAT Polar System (EPS-SG) programme will include two conical scanning radiometer imaging missions, the Microwave Imager (MWI, measuring in the microwave/millimetre spectrum) and the Ice Cloud Imager (ICI, measuring in the millimetre and sub-millimetre spectrum) that will be flown on the Metop-SG-B satellites. The preparatory activities for the validation of the MWI and ICI Level 1B (L1B) and Level 2 (L2) products during the Metop-SG-B commissioning phase are currently ongoing. Hereafter an overview of some of the Calibration/Validation (Cal/Val) tools implemented in-house at EUMETSAT and via external studies for the verification of the geolocation and radiometric requirements within the EUMETSAT End-Users Requirements Document (EURD) is provided. Focus has been given to coastline matchup geolocation analysis and the radiometric comparison of the MWI and ICI observed brightness temperatures with radiative transfer simulations based on atmospheric profiles from radiosonde sensors and ECMWF forecasts.