Biogeosciences
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Articles | Volume 16, issue 15
Articles | Volume 16, issue 15
https://doi.org/10.5194/bg-16-3095-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-16-3095-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 15
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, Iris Kriest, and Andreas Oschlies

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Short summary
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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