Articles | Volume 16, issue 13
Biogeosciences, 16, 2661–2681, 2019
https://doi.org/10.5194/bg-16-2661-2019
Biogeosciences, 16, 2661–2681, 2019
https://doi.org/10.5194/bg-16-2661-2019

Research article 11 Jul 2019

Research article | 11 Jul 2019

What drives the latitudinal gradient in open-ocean surface dissolved inorganic carbon concentration?

Yingxu Wu et al.

Data sets

Global Ocean Data Analysis Project R. M. Key, A. Olsen, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, and M. Hoppema https://doi.org/10.3334/CDIAC/OTG.NDP093_GLODAPv2

The Global Ocean Data Analysis Project version 2 (GLODAPv2) - an internally consistent data product for the world ocean A. Olsen, R. M. Key, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterstr\"{o}m, R. Steinfeldt, E. Jeansson, M. Ishii, F. F. P\'{e}rez, and T. Suzuki https://doi.org/10.5194/essd-8-297-2016

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Short summary
This study takes advantage of the GLODAPv2 database to investigate the processes driving the surface ocean dissolved inorganic carbon distribution, with the focus on its latitudinal gradient between the polar oceans and the low-latitude oceans. Based on our quantitative study, we find that temperature-driven CO2 gas exchange and high-latitude upwelling of DIC- and TA-rich deep waters are the two major drivers, with the importance of the latter not having been previously realized.
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