CER_GEO_Ed4_MET09_SH_V01.4 is the Satellite ClOud and Radiation Property retrieval System (SatCORPS) Clouds and the Earth's Radiant Energy System (CERES) Geostationary Satellite (GEO) Edition 4 Meteosat-9 over the Southern Hemisphere (SH) Version 1.4 data product. Data was collected using the Spinning Enhanced Visible and Infrared Imager (SEVIRI) Instrument on the Meteosat-9 platform. Note: Version 1.4 uses the Global Modeling and Assimilation Office (GMAO) Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) reanalysis for atmospheric input; Version 1.2 used GMAO's GEOS-5.4.1. No changes have been made to the cloud retrieval algorithm. This data set is comprised of cloud micro-physical and radiation properties derived hourly from Meteosat-9 geostationary satellite imager data using the Langley Research Center (LARC) SATCORPS algorithms in support of the Clouds and the Earth's Radiant Energy System (CERES) project. The data set is arranged as files for each hour in netCDF-4 format. The observations are at 3 km resolution (at nadir) and are sub-sampled to 6 km (taking every other line and pixel).