Extended Data Fig. 1: Base model output.
Patterns in vertical and horizontal distribution of simulated Ni for a model including only biological uptake and remineralization of Ni in soft-tissue. a) Comparison between observations (colored circles) and optimized model output (background color) are shown for the surface ocean, with white lines delineating the boundaries of the oligotrophic gyre at 0.2 μM PO42-, and black lines showing the location of depth transect data. b) Comparison between observations and optimized model output are shown for depth transects in the Atlantic and Pacific Ocean, which include GEOTRACES transects GA02 and GP15, respectively. The Ni mean depth reported above this panel refers to the average depth of model-predicted Ni in the global ocean, which can be compared to mean depths of 2174 m and 2533 m for P and Si, respectively, based on World Ocean Atlas 2009 data. c) The global fit between model and observed Ni, with the colorscale reflecting the relative data density as a percentage compared to maximum data density. d) Horizontal patterns in global depth integrated scavenging flux of Ni (which has no value for this model because no scavenging process was included), presented as a percentage of the maximum scavenging intensity. e) vertical patterns in horizontally integrated Ni scavenging flux (which has no value for this model because no scavenging process was included), presented as a percentage of the maximum scavenging intensity. Additional information about optimized model parameters and model performance metrics are presented in Table ED1.
