Articles | Volume 19, issue 10
Biogeosciences, 19, 2599–2625, 2022
https://doi.org/10.5194/bg-19-2599-2022
Biogeosciences, 19, 2599–2625, 2022
https://doi.org/10.5194/bg-19-2599-2022
Research article
25 May 2022
Research article | 25 May 2022

Summer trends and drivers of sea surface fCO2 and pH changes observed in the southern Indian Ocean over the last two decades (1998–2019)

Coraline Leseurre et al.

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Cited articles

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Decadal trends of fugacity of CO2 (fCO2), total alkalinity (AT), total carbon (CT) and pH in surface waters are investigated in different domains of the southern Indian Ocean (45°S–57°S) from ongoing and station observations regularly conducted in summer over the period 1998–2019. The fCO2 increase and pH decrease are mainly driven by anthropogenic CO2 estimated just below the summer mixed layer, as well as by a warming south of the polar front or in the fertilized waters near Kerguelen Island.
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