Pdaf-EnKF ocean-only (temperature and salinity) initialized coupled R2B4/R2B6 ICON-ESM assimilation experiment with 10 ensemble-members over the period 1960-2014. Additionally, this data-set contains also a set of ICON-ESM decadal hindcasts with 10 ensemble-members started on every 1st of November from the assimilation experiment over 10 years.