Figure 6

Fig. 6. The mean TCO₂ residual (observed – predicted) for each station occupied during R/V Meteor Cruise 22/5; residuals were evaluated using a section-wide multiple linear regression (coefficients given for regression no. 0 in Table 5). The error bars denote the 95% confidence interval of the station-mean residual. Filled symbols reflect stations analyzed using the BNL SOMMA, open symbols reflect analyses using the IfMK (Kiel) SOMMA. The demarcation of three geographical zones reflecting three separate ocean basins sampled during the cruise is denoted with the vertical lines. The horizontal lines represent the cruise-wide mean and 95% confidence intervals calculated for the station-mean residuals using the BNL SOMMA results only.