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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Our results show that accounting for oceanic CO2 seasonality is crucial to projecting the future onset of critical ocean acidification levels (i.e. aragonite undersaturation). In particular, seasonality will bring forward the initial onset of month-long undersaturation by a global average of 17 years. Importantly, widespread undersaturation is projected to occur once atmospheric CO2 reaches 496ppm in the North Pacific and 511ppm in the Southern Ocean, independent of emissions scenario.
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Articles | Volume 12, issue 20
Biogeosciences, 12, 6017–6031, 2015
https://doi.org/10.5194/bg-12-6017-2015
Biogeosciences, 12, 6017–6031, 2015
https://doi.org/10.5194/bg-12-6017-2015

Research article 22 Oct 2015

Research article | 22 Oct 2015

Quantifying the influence of CO2 seasonality on future aragonite undersaturation onset

T. P. Sasse et al.

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Our results show that accounting for oceanic CO2 seasonality is crucial to projecting the future onset of critical ocean acidification levels (i.e. aragonite undersaturation). In particular, seasonality will bring forward the initial onset of month-long undersaturation by a global average of 17 years. Importantly, widespread undersaturation is projected to occur once atmospheric CO2 reaches 496ppm in the North Pacific and 511ppm in the Southern Ocean, independent of emissions scenario.
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