Figure 3
From: Surface ocean carbon dioxide variability in South Pacific boundary currents and Subantarctic waters
Attribution of monthly CO2 fugacity changes across physical and biological drivers at each site. (a–c) measured monthly changes in \(fC{O}_{2}^{sw}\) (\({d}_{obs}\,fC{O}_{2}^{sw}\), grey boxes) and expected changes in \(fC{O}_{2}^{sw}\) due to the variability of temperature (\({d}_{T}fC{O}_{2}^{sw}\), yellow line with circles), salinity (\({d}_{S}\,fC{O}_{2}^{sw}\), magenta line with squares) and air-sea fluxes (\({d}_{air-sea}\,fC{O}_{2}^{sw}\), blue line with triangles); (e–g) estimated changes in \(fC{O}_{2}^{sw}\) due to the combined effect of dynamics and biological processes (\({d}_{dyn-bio}\,fC{O}_{2}^{sw}\), grey boxes) and separately due to primary productivity (\({d}_{bio}\,fC{O}_{2}^{sw}\), green line with dots), advection (\({d}_{adv}\,fC{O}_{2}^{sw}\), orange line with triangles), entrainment (\({d}_{entr}\,fC{O}_{2}^{sw}\), brown line with squares) and diffusion (\({d}_{dif}\,fC{O}_{2}^{sw}\), fuchsia line with stars)(see Eqs 2 and 3 in Methods).
