Articles | Volume 12, issue 5
Biogeosciences, 12, 1387–1401, 2015
https://doi.org/10.5194/bg-12-1387-2015
Biogeosciences, 12, 1387–1401, 2015
https://doi.org/10.5194/bg-12-1387-2015

Research article 05 Mar 2015

Research article | 05 Mar 2015

Rapid acidification of mode and intermediate waters in the southwestern Atlantic Ocean

L. A. Salt et al.

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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Lesley Salt on behalf of the Authors (12 Aug 2014)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (27 Nov 2014) by Gerhard Herndl
RR by Marta Álvarez (09 Dec 2014)
RR by Anonymous Referee #1 (12 Dec 2014)
ED: Publish subject to minor revisions (Editor review) (26 Dec 2014) by Gerhard Herndl
AR by Lesley Salt on behalf of the Authors (16 Jan 2015)  Author's response    Manuscript
ED: Publish as is (19 Jan 2015) by Gerhard Herndl
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Short summary
The increase in anthropogenic atmospheric carbon dioxide is mitigated by uptake by the world ocean, which alters the pH of the water. In the South Atlantic we find the highest rates of acidification relative to increase in anthropogenic carbon (Cant) found in Subantarctic Mode Water and Antarctic Intermediate Water. The moderate rates of increase in Cant combined with low buffering capacities, due to low salinity and alkalinity values, have caused rapid acidification in the Subantarctic Zone.
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