Articles | Volume 15, issue 12
Biogeosciences, 15, 3743–3760, 2018
Biogeosciences, 15, 3743–3760, 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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Cited articles

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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.
Final-revised paper