Articles | Volume 15, issue 12
Biogeosciences, 15, 3743–3760, 2018
https://doi.org/10.5194/bg-15-3743-2018
Biogeosciences, 15, 3743–3760, 2018
https://doi.org/10.5194/bg-15-3743-2018

Research article 20 Jun 2018

Research article | 20 Jun 2018

The sensitivity of estuarine aragonite saturation state and pH to the carbonate chemistry of a freshet-dominated river

Benjamin L. Moore-Maley et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (04 Jan 2018) by Jack Middelburg
AR by Ben Moore-Maley on behalf of the Authors (10 Feb 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (13 Feb 2018) by Jack Middelburg
RR by Anonymous Referee #2 (29 Apr 2018)
ED: Publish subject to minor revisions (review by editor) (29 Apr 2018) by Jack Middelburg
AR by Ben Moore-Maley on behalf of the Authors (13 May 2018)  Author's response    Manuscript
ED: Publish subject to technical corrections (20 May 2018) by Jack Middelburg
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Short summary
Estuaries are vulnerable to ocean acidification, but present-day estuarine pH and aragonite saturation state variability are larger than in the open ocean. Using a numerical model of a large estuary and data from its primary river, we find that changes in river alkalinity relative to river carbon may determine a small but significant portion of this variability, while the majority is controlled by photosynthesis/respiration. Future watershed changes may shift the river alkalinity–carbon balance.
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