Table 2

Sensitivity of ocean carbon uptake to variations in the climate sensitivity, ΔT , and the vertical eddy diffusivity, K v, for the WRE550 CO2 profile. Uptake values forΔT = 0°C are shown in parentheses forK v values. Standard values are 0.4 × 10−4 m2 s−1 forK v and 3.7°C forΔT .

Parameter valueCumulative ocean uptake in Gt of CReduction from 1765 to 2500
1980 to 19891765 to 2500
Variation of ΔTC)
0.021.412400.0%
1.520.811546.9%
2.520.2108712.3%
3.720.2103017.0%
4.519.4 98120.9%
Variation of Kv (10−4 m2s−1)
0.622.91128 (1349)16.5%
0.420.21030 (1240)17.0%
0.218.2934 (1116)16.3%