Articles | Volume 18, issue 18
https://doi.org/10.5194/gmd-18-6367-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-18-6367-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
25 Sep 2025
Model description paper |
| 25 Sep 2025
| 25 Sep 2025
GEOCLIM7, an Earth system model for multi-million-year evolution of the geochemical cycles and climate
Géosciences Environnement Toulouse, CNRS–Université de Toulouse III, Toulouse, France
Aix Marseille Univ, CNRS, IRD, INRAE, CEREGE, Aix-en-Provence, France
Yves Goddéris
Géosciences Environnement Toulouse, CNRS–Université de Toulouse III, Toulouse, France
Guillaume Le Hir
Institut de Physique du Globe, Paris, France
Élise Nardin
Géosciences Environnement Toulouse, CNRS–Université de Toulouse III, Toulouse, France
Anta-Clarisse Sarr
Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
Yannick Donnadieu
Aix Marseille Univ, CNRS, IRD, INRAE, CEREGE, Aix-en-Provence, France
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Maffre, P.: Simulation outputs associated with Maffre et al. “GEOCLIM7, an Earth System Model for multi-million years evolution of the geochemical cycles and climate.” (submitted to GMD), Zenodo [data set], https://doi.org/10.5281/zenodo.14228131, 2024. a
Maffre, P.: piermafrost/GEOCLIM, Zenodo [code], https://doi.org/10.5281/zenodo.5246621, 2025a. a
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Short summary
A new version (v7) of the numerical model GEOCLIM is presented here. GEOCLIM models the evolution of ocean and atmosphere chemical composition on multi-million-year timescales, including carbon and oxygen cycles, CO2, and climate. GEOCLIM is associated with a climate model, and a new procedure to link the climate model to GEOCLIM is presented here. GEOCLIM is applied here to investigate the evolution of ocean oxygenation following Earth's orbital parameter variations around 94 million years ago.
A new version (v7) of the numerical model GEOCLIM is presented here. GEOCLIM models the...
