Articles | Volume 12, issue 23
https://doi.org/10.5194/bg-12-6881-2015
https://doi.org/10.5194/bg-12-6881-2015
Research article
 | 
02 Dec 2015
Research article |  | 02 Dec 2015

Carbonate saturation state of surface waters in the Ross Sea and Southern Ocean: controls and implications for the onset of aragonite undersaturation

H. B. DeJong, R. B. Dunbar, D. Mucciarone, and D. A. Koweek

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Short summary
We calculate the carbonate saturation state of surface water from the Ross Sea and along a transect between the Ross Sea and southern Chile using ~ 1700 total alkalinity measurements. Our results suggest that variability in surface carbonate saturation state is driven by biological productivity. We argue that in the Ross Sea the aragonite saturation state of surface water during the early spring never falls below 1.2.
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