Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 8
Articles | Volume 19, issue 8
https://doi.org/10.5194/gmd-19-3285-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-3285-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 8
Development and technical paper
 | 
24 Apr 2026
Development and technical paper |  | 24 Apr 2026

A fast and physically grounded ocean model for GCMs: the Dynamical Slab Ocean Model of the Generic-PCM (rev. 3423)

Siddharth Bhatnagar, Francis Codron, Ehouarn Millour, Emeline Bolmont, Maura Brunetti, Jérôme Kasparian, Martin Turbet, and Guillaume Chaverot

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Short summary

We present an efficient ocean model coupled to a 3-D climate model (the Generic-PCM) that captures key features of ocean heat transport, matching well the global heat flows of more complex models. It closely reproduces Earth’s sea surface temperatures and sea ice, while influencing atmospheric circulation consistently. Balancing speed and accuracy, the model is ideal for exoplanet and paleoclimate studies, where observations are limited and broad parameter exploration is necessary.

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