We performed a series of global ocean biogeochemistry model simulations over 1905 to 2010 taking into account 1. changes in atmospheric CO₂, 2. changes in atmospheric CO₂ and changes in the physical climate, and 3. hanges in atmospheric CO₂,changes in the physical climate, as well as changes in land-derived inputs of P and N, including both riverine & atmospheric deposition perturbations. These simulations can be used to isolate for the individual effects on the marine carbon cycle arising from pertubations of atmospheric CO₂, of the physical climate, and of land-derived nutrient inputs.  The simulations were performed in the Max-Planck-Institute Ocean Model (MPI-OM) TP04 configuration, which resolves the global ocean at a resolution of around 0.4 degrees, coupled an enhanced version of the ocean biogeochemistry model HAMOCC for a better representation of processes taking place in the coastal ocean.