The dataset presented here was employed for the visual representations and analysis in the submitted research article "Ocean Biogeochemical Reconstructions to Estimate Historical Ocean CO_2 Uptake" by Bernardello R. et al., which was a requirement established by the Earth System Journal. The presented data are post-processed results obtained through simulations of the EC-Earth-CC Earth System Model. In adherence to the journal's policy, we have provided access to this dataset. In the files where the name does not specify otherwise, the dataset comprises every case that was examined in the paper. In the case of Chlorophyll and Mixed Layer Depth, each file comprises a single case, which is denoted by its name.