Carbon uptake and biogeochemical change in the Southern Ocean, south of Tasmania

Pardo, Paula Conde; Tilbrook, Bronte; Langlais, Clothilde; Trull, Thomas William; Rintoul, Stephen Rich

doi:https://doi.org/10.5194/bg-14-5217-2017

Articles | Volume 14, issue 22

https://doi.org/10.5194/bg-14-5217-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Ocean in a High-CO₂ World IV

https://doi.org/10.5194/bg-14-5217-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 22

Research article

|

21 Nov 2017

Research article |

| 21 Nov 2017

Carbon uptake and biogeochemical change in the Southern Ocean, south of Tasmania

Paula Conde Pardo, Bronte Tilbrook, Clothilde Langlais, Thomas William Trull, and Stephen Rich Rintoul

Supplement

https://doi.org/10.5194/bg-14-5217-2017-supplement

Data sets

Global Ocean Data Analysis Project, Version 2 (GLODAPv2) R. M. Key, A. Olsen, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterstr\"{o}m, R. Steinfeldt, E. Jeansson, M. Ishi, F. F. Perez, and T. Suzuki https://doi.org/10.3334/CDIAC/OTG.NDP093_GLODAPv2

The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internally consistent data product for the world ocean A. Olsen, R. M. Key, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterström, R. Steinfeldt, E. Jeansson, M. Ishii, F. F. Pérez, and T. Suzuki https://doi.org/10.5194/essd-8-297-2016

ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis C. Amante, and B. W. Eakins https://doi.org/10.7289/V5C8276M

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Short summary

The carbon content of the water masses of the Southern Ocean south of Tasmania has increased over the period 1995–2011, leading to a general decrease in pH. An enhancement in the upwelling of DIC-rich deep waters is the main plausible cause of the increase in carbon in surface waters south of the Polar Front. North of the Polar Front, strong winds favor the ventilation of surface to intermediate layers, where the DIC increase is explained by the uptake of atmospheric CO₂.