Articles | Volume 21, issue 18
https://doi.org/10.5194/bg-21-4149-2024
https://doi.org/10.5194/bg-21-4149-2024
Research article
 | 
26 Sep 2024
Research article |  | 26 Sep 2024

Assessing the tropical Atlantic biogeochemical processes in the Norwegian Earth System Model

Shunya Koseki, Lander R. Crespo, Jerry Tjiputra, Filippa Fransner, Noel S. Keenlyside, and David Rivas

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This preprint is open for discussion and under review for Geoscientific Model Development (GMD).
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Cited articles

Araujo, M., Noriega, C., and Lefevre, N.: Nutrients and carbon fluxes in the estuaries of major rivers flowing into the tropical Atlantic, Front. Mar. Sci., 1, 10, https://doi.org/10.3389/fmars.2014.00010, 2014. 
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Berline, L., Brankart, J. M., Brasseur, P., Ourmieres, Y., and Verron, J.: Improving the physics of a coupled physical-biogeochemical model of the North Atlantic through data assimilation: Impact on the ecosystem, J. Marine Syst., 64, 153–172, https://doi.org/10.1016/j.jmarsys.2006.03.007, 2007. 
Bertini, L. and Tjiputra, J.: Biogeochemical Timescales of Climate Change Onset and Recovery in the North Atlantic Interior Under Rapid Atmospheric CO2 Forcing, J. Geophys. Res.-Oceans, 127, e2021JC017929, https://doi.org/10.1029/2021JC017929, 2022. 
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We investigated how the physical biases of an Earth system model influence the marine biogeochemical processes in the tropical Atlantic. With four different configurations of the model, we have shown that the versions with better SST reproduction tend to better represent the primary production and air–sea CO2 flux in terms of climatology, seasonal cycle, and response to climate variability.
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