The SDC_GLO_CLIM_O2_AOU product contains two different seasonal climatology for dissolved Oxygen and Apparent Oxygen Utilization, SDC_GLO_CLIM_O2 and SDC_GLO_CLIM_AOU respectively based on data from the World Ocean Database (WOD). Only basic quality control flags from the WOD are used. The first climatology, SDC_GLO_CLIM_O2, considers Dissolved Oxygen profiles collocated with temperature and salinity from CTD, Profiling Floats (PFL), Ocean Station Data (OSD) covering the time period from 2003 to 2017. The Apparent Oxygen Utilization climatology, SDC_GLO_CLIM_AOU, has been computed as a difference between dissolved oxygen concentration and its equilibrium saturation concentration. The gridded fields have been obtained using DIVAnd (Data Interpolating Variational Analysis) version 2.3.1.