Articles | Volume 14, issue 5
Biogeosciences, 14, 1123–1152, 2017
https://doi.org/10.5194/bg-14-1123-2017

Special issue: Progress in quantifying ocean biogeochemistry – in honour...

Biogeosciences, 14, 1123–1152, 2017
https://doi.org/10.5194/bg-14-1123-2017
Research article
 | Highlight paper
09 Mar 2017
Research article  | Highlight paper | 09 Mar 2017

Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese

Marco van Hulten et al.

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Short summary
We ran a global ocean model to understand manganese (Mn), a biologically essential element. Our model shows that (i) in the deep ocean, dissolved [Mn] is mostly homogeneous ~0.10—0.15 nM. The model reproduces this with a threshold on MnO2 of 25 pM, suggesting a minimal particle concentration is needed before aggregation and removal become efficient. (ii) The observed distinct hydrothermal signals are produced by assuming both a strong source and a strong removal of Mn near hydrothermal vents.
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