Terenzi et al. 2007

Terenzi, F., T.M. Hall, S. Khatiwala, C. Rodehacke, and D.A. LeBel, 2007: Uptake of natural and anthropogenic carbon by the Labrador Sea. Geophys. Res. Lett., 34, L06608, doi:10.1029/2006GL028543.

We apply to Classical Labrador Sea Water (CLSW) the transit-time distribution (TTD) method to estimate the inventory and uptake anthropogenic carbon dioxide (C_ant ). A model of TTDs representing bulk-advective and diffusive mixing is constrained with CFC-11 data. The constrained TTDs are used to propagate C_ant into CLSW, allowing the air-sea disequilibrium to evolve consistently. C_ant in the Labrador Sea (LS) surface waters cannot keep pace with increasing atmospheric CO₂ and is highly undersaturated. Our best estimate for 2001 is an anthropogenic inventory of 1.0 Gt C and an uptake of 0.02 Gt C/year. By conditionally using the constraint of present-day CO₂ measurements, we estimate that thepreindustrial LS was neutral or a weak source of CO₂ to the atmosphere. Our estimates are subject to possible error due to the assumption of steady-state transport and carbon biochemistry.

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Terenzi, F., Hall, T.M., Khatiwala, S., Rodehacke, C., and LeBel, D.A.: Uptake of natural and anthropogenic carbon by the Labrador Sea, Geophys. Res. Lett., 34, L06608, doi:10.1029/2006GL028543, 2007.

Terenzi, F., T.M. Hall, S. Khatiwala, C. Rodehacke, and D.A. LeBel (2007), Uptake of natural and anthropogenic carbon by the Labrador Sea, Geophys. Res. Lett., 34, L06608, doi:10.1029/2006GL028543.

Terenzi, F., T.M. Hall, S. Khatiwala, C. Rodehacke, and D.A. LeBel, 2007: Uptake of natural and anthropogenic carbon by the Labrador Sea. Geophys. Res. Lett., 34, L06608, doi:10.1029/2006GL028543.

Terenzi, F., Hall, T.M., Khatiwala, S., Rodehacke, C., & LeBel, D.A. 2007, Geophys. Res. Lett., 34, L06608, doi:10.1029/2006GL028543.

Terenzi F, Hall TM, Khatiwala S, Rodehacke C, LeBel DA. Uptake of natural and anthropogenic carbon by the Labrador Sea, Geophys Res Lett 2007;34:L06608. doi:10.1029/2006GL028543.

F. Terenzi, T.M. Hall, S. Khatiwala, C. Rodehacke, D.A. LeBel, Geophys. Res. Lett. 34, L06608, doi:10.1029/2006GL028543 (2007).