Each netcdf file (.nc) contains model output from simulations performed with the NEMO-PISCES global ocean-biogeochemistry model. These simulations were forced by physical output from the IPSL-CM5A Earth System Model, which performed both the natural (no anthropogenic activities) and RCP8.5 scenarios. Variables in spin-up "ptrc" files are: name title I J K L PHY (Nano)Phytoplankton Concentrati 1:360 1:180 1:31 1:12 PHY2 Diatoms Concentration 1:360 1:180 1:31 1:12 O2 Oxygen Concentration 1:360 1:180 1:31 1:12 PREO2 Abiotic Oxygen Concentration 1:360 1:180 1:31 1:12 FER Dissolved Iron Concentration 1:360 1:180 1:31 1:12 NO3 Nitrate Concentration 1:360 1:180 1:31 1:12 NO2 Nitrite Concentration 1:360 1:180 1:31 1:12 NH4 Ammonium Concentration 1:360 1:180 1:31 1:12 NO3_15 15N Nitrate Concentration 1:360 1:180 1:31 1:12 NO2_15 15N Nitrite Concentration 1:360 1:180 1:31 1:12 NH4_15 15N Ammonium Concentration 1:360 1:180 1:31 1:12 O2_18 18O Dissolved Oxygen Concentrat 1:360 1:180 1:31 1:12 NO3_18 18O Nitrate Concentration 1:360 1:180 1:31 1:12 NO2_18 18O Nitrite Concentration 1:360 1:180 1:31 1:12 Variables in scenario "ptrc" files are: name title I J K L PHY (Nano)Phytoplankton Concentrati 1:360 1:180 1:31 1:12 PHY2 Diatoms Concentration 1:360 1:180 1:31 1:12 ZOO (Micro)Zooplankton Concentratio 1:360 1:180 1:31 1:12 ZOO2 Mesozooplankton Concentration 1:360 1:180 1:31 1:12 O2 Oxygen Concentration 1:360 1:180 1:31 1:12 PREO2 Abiotic Oxygen Concentration 1:360 1:180 1:31 1:12 FER Dissolved Iron Concentration 1:360 1:180 1:31 1:12 NO3 Nitrate Concentration 1:360 1:180 1:31 1:12 NO2 Nitrite Concentration 1:360 1:180 1:31 1:12 NH4 Ammonium Concentration 1:360 1:180 1:31 1:12 DOC Dissolved organic Concentration 1:360 1:180 1:31 1:12 POC Small organic carbon Concentrat 1:360 1:180 1:31 1:12 GOC Big organic carbon Concentratio 1:360 1:180 1:31 1:12 NO3_15 15N Nitrate Concentration 1:360 1:180 1:31 1:12 NO2_15 15N Nitrite Concentration 1:360 1:180 1:31 1:12 NH4_15 15N Ammonium Concentration 1:360 1:180 1:31 1:12 PHY_15 15N Nanophytoplankton Concentra 1:360 1:180 1:31 1:12 PHY2_15 15N Diatoms Concentration 1:360 1:180 1:31 1:12 DOC_15 15N Dissolved organic Concentra 1:360 1:180 1:31 1:12 POC_15 15N Small particulate Concentra 1:360 1:180 1:31 1:12 GOC_15 15N Large particulate Concentra 1:360 1:180 1:31 1:12 ZOO_15 15N Microzooplankton Concentrat 1:360 1:180 1:31 1:12 ZOO2_15 15N Mesozooplankton Concentrati 1:360 1:180 1:31 1:12 O2_18 18O Dissolved Oxygen Concentrat 1:360 1:180 1:31 1:12 NO3_18 18O Nitrate Concentration 1:360 1:180 1:31 1:12 NO2_18 18O Nitrite Concentration 1:360 1:180 1:31 1:12 Variables in the scenario "diad" files are: name title I J K L PH PH 1:360 1:180 1:31 1:12 HEUP Euphotic layer depth 1:360 1:180 ... 1:12 PAR Photosynthetically Available Ra 1:360 1:180 1:31 1:12 PARDM Daily mean PAR 1:360 1:180 1:31 1:12 PPPHYN Primary production of nanophyto 1:360 1:180 1:31 1:12 PPPHYD Primary production of diatoms 1:360 1:180 1:31 1:12 PPNEWN New Primary production of nanop 1:360 1:180 1:31 1:12 PPNEWD New Primary production of diato 1:360 1:180 1:31 1:12 PPNO2N NO2 Primary production of nanop 1:360 1:180 1:31 1:12 PPNO2D NO2 Primary production of diato 1:360 1:180 1:31 1:12 NITRNH4 Ammonia-oxidation rate (NH4-->N 1:360 1:180 1:31 1:12 NITRNO2 Nitrite-oxidation rate (NO2-->N 1:360 1:180 1:31 1:12 MUAOA Growth rate of ammonia oxidiser 1:360 1:180 1:31 1:12 MUAOAMAX Max potential ammonia oxidation 1:360 1:180 1:31 1:12 LAOANH4 Substrate limitation of NH4 oxi 1:360 1:180 1:31 1:12 LAOAFER Iron limitation of NH4 oxidatio 1:360 1:180 1:31 1:12 LAOAPAR Light limitation of NH4 oxidati 1:360 1:180 1:31 1:12 LAOAPH pH limitation of NH4 oxidation 1:360 1:180 1:31 1:12 LNOBNO2 Substrate limitation of NO2 oxi 1:360 1:180 1:31 1:12 LNOBFER Iron limitation of NO2 oxidatio 1:360 1:180 1:31 1:12 LNOBPAR Light limitation of NO2 oxidati 1:360 1:180 1:31 1:12 NFIX Nitrogen fixation 1:360 1:180 1:31 1:12 RIVER_NO3 Nitrate added by rivers 1:360 1:180 ... 1:12 NDEP_NO3 Nitrate added by deposition 1:360 1:180 ... 1:12 REMIN Oxic remineralization of OM (DO 1:360 1:180 1:31 1:12 EXCR1 Excretion by microzooplankton 1:360 1:180 1:31 1:12 EXCR2 Excretion by mesozooplankton 1:360 1:180 1:31 1:12 DENITNO3 Denitrification rate (NO3-->NO2 1:360 1:180 1:31 1:12 DENITNO2 Denitrification rate (NO2-->N2) 1:360 1:180 1:31 1:12 ANAMMOX Anaerobic oxidation of NH4 (NH4 1:360 1:180 1:31 1:12 ALTREM Alternative anaerobic remin (DO 1:360 1:180 1:31 1:12 SDEN3D Sed denitrification of OM (NO3- 1:360 1:180 1:31 1:12 SREM3D Sed remineralisation of OM (DOC 1:360 1:180 1:31 1:12 Files: ETOPO_nitr_kaoafer00_1m_ptrc.nc ETOPO_nitr_kaoafer00_1m_diad.nc ETOPO_nitr_kaoafer00_2ndpicontrol_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_2ndpicontrol_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_acid_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_acid_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_warm_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_warm_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_circ_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_circ_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_full_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_full_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_picontrolalt_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_picontrolalt_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_acidalt_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_acidalt_1m_diad_2081-2100_ave.nc ETOPO_nitr_kaoafer00_fullalt_1m_ptrc_2081-2100_ave.nc ETOPO_nitr_kaoafer00_fullalt_1m_diad_2081-2100_ave.nc Naming convention: "ETOPO" - refers to being on a regular 1x1 degree horizontal grid "nitri" - refers to the developed PISCES model with explicit two-step nitrification "kaoafer00" - refers to no iron limitation of AOA "1m" - refers to the timestep resolution, here 1 month. Thus, all data presented here is monthly averaged values. "2ndpicontrol" - refers to preindustrial control run "acid" - refers to the control run + ocean acidification "warm" - refers to the control run + warming "circ" - refers to the control run + circulation change "full" - refers to the control run + ocean acidification + warming + circulation change "picontrolalt" - refers to preindustrial control run (alternative pH parameterisation) "acidalt" - refers to the control run + ocean acidification (alternative pH parameterisation) "fullalt" - refers to the control run + ocean acidification + warming + circulation change (alternative pH parameterisation) Contact: Pearse.Buchanan@liverpool.ac.uk or pbuchanan@carnegiescience.edu