Simulated NPP considering changes in atmospheric CO2, of the physical climate, and of land-derived nutrient inputs in a global ocean biogeochemistry model

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.