Articles | Volume 16, issue 15
Biogeosciences, 16, 3095–3111, 2019
https://doi.org/10.5194/bg-16-3095-2019
Biogeosciences, 16, 3095–3111, 2019
https://doi.org/10.5194/bg-16-3095-2019

Research article 15 Aug 2019

Research article | 15 Aug 2019

The effect of marine aggregate parameterisations on nutrients and oxygen minimum zones in a global biogeochemical model

Daniela Niemeyer et al.

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Recent studies suggest spatial variations of the marine particle flux length scale. Using a global biogeochemical ocean model, we investigate whether changes in particle size and size-dependent sinking can explain this variation. We address uncertainties by varying aggregate properties and circulation. Both aspects have an impact on the representation of nutrients, oxygen and oxygen minimum zones. The formation and sinking of large aggregates in productive areas lead to deeper flux penetration.
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