Figure 5

Fig. 5. Residuals (observed – predicted) of TCO₂ versus the observed TCO₂ concentration for three separate geographical groupings of stations occupied during R/V Meteor Cruise 22/5. The residuals were evaluated against a multiple linear regressionequation derived from all the TCO₂ data collected during the cruise (at depths > 200 m). The independent variables used in the regression were potential temperature, salinity, apparent oxygen utilization, and a silicate index. The regression coefficients used were those presented for regression no. 0 in Table 5.