Biogeosciences
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Articles | Volume 15, issue 11
Articles | Volume 15, issue 11
https://doi.org/10.5194/bg-15-3293-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-15-3293-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 11
Research article
 | 
04 Jun 2018
Research article |  | 04 Jun 2018

Interannual sedimentary effluxes of alkalinity in the southern North Sea: model results compared with summer observations

Johannes Pätsch, Wilfried Kühn, and Katharina Dorothea Six

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Short summary
Biogeochemical shelf sea modelling has a long tradition. Most models include early diagenesis sediment modules for remineralization of organic matter. The model presented here also simulates alkalinity, which is exported into the pelagic system. There the produced alkalinity joins in the carbonate system and is able to buffer invading atmospheric CO2. The input of nitrate via rivers stimulates alkalinity generation within the sediment, which in turn reduces the acidification of coastal areas.
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