Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 18, issue 18
Articles | Volume 18, issue 18
https://doi.org/10.5194/gmd-18-6415-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gmd-18-6415-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 18
Model description paper
 | 
25 Sep 2025
Model description paper |  | 25 Sep 2025

BIOPERIANT12: a mesoscale-resolving coupled physics–biogeochemical model for the Southern Ocean

Nicolette Chang, Sarah-Anne Nicholson, Marcel du Plessis, Alice D. Lebehot, Thulwaneng B. Mashifane, Tumelo C. Moalusi, Precious Mongwe, and Pedro M. S. Monteiro

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Short summary
The Southern Ocean plays a key role in the Earth's carbon and heat cycles. Mesoscale features like eddies and fronts are crucial to this but are often unresolved in models due to computational limits. We built a regional NEMO model of the Southern Ocean at 8 km resolution, BIOPERIANT12, which simulates ocean, ice, and biogeochemistry. This helps us investigate dynamics such as how storms shape surface ocean structure and biology, ultimately affecting atmosphere–ocean carbon exchange.
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Special issue
Nucleus for European Modelling of the Ocean - NEMO