Fig. 7: Sensitivity of marine productivity to the PGI in a controlled sensitivity experiment.
From: Zooplankton grazing is the largest source of uncertainty for marine carbon cycling in CMIP6 models
Global, annually-averaged a NPP, b GSP, and c EP from each simulation of WOMBAT (see “Methods”) is plotted against the PGI of the corresponding model. Horizontal error bars refer to the precision of the PGI, per Fig. 6. The vertical uncertainty window is proportional to the amplitude of the seasonal cycle, computed as ±25% of the difference between the annual maximum and mean. Vertical dashed lines refer to the PGI of CMIP6 models, color-coated per Fig. 2. Regional, annually-averaged d NPP, e GSP, and f EP are plotted separately for eutrophic (left axis) and oligotrophic (right axis) regions. The boundary between “oligotrophic” and “eutrophic” regions is contoured in black on the maps in Fig. 8. Vertical dashed lines denote which runs are plotted in the corresponding panels of Fig. 8.
