Implementation and evaluation of the GEOS-Chem chemistry module version 13.1.2 within the Community Earth System Model v2.1

Fritz, Thibaud M.; Eastham, Sebastian D.; Emmons, Louisa K.; Lin, Haipeng; Lundgren, Elizabeth W.; Goldhaber, Steve; Barrett, Steven R. H.; Jacob, Daniel J.

doi:https://doi.org/10.5194/gmd-15-8669-2022

Articles | Volume 15, issue 23

https://doi.org/10.5194/gmd-15-8669-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-15-8669-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 23

Model description paper

|

30 Nov 2022

Model description paper |

| 30 Nov 2022

Implementation and evaluation of the GEOS-Chem chemistry module version 13.1.2 within the Community Earth System Model v2.1

Thibaud M. Fritz, Sebastian D. Eastham, Louisa K. Emmons, Haipeng Lin, Elizabeth W. Lundgren, Steve Goldhaber, Steven R. H. Barrett, and Daniel J. Jacob

Supplement

https://doi.org/10.5194/gmd-15-8669-2022-supplement

Model code and software

CESM-GC/CESM-GC-Standalone: CESM-GC v1.0.0 for public review (v1.0.0_review) Thibaud Fritz, Sebastian D. Eastham, Louisa K. Emmons, Haipeng Lin, Elizabeth W. Lundgren, Steve Goldhaber, Steven R. H. Barrett, and Daniel J. Jacob https://doi.org/10.5281/zenodo.6465076

Short summary

We bring the state-of-the-science chemistry module GEOS-Chem into the Community Earth System Model (CESM). We show that some known differences between results from GEOS-Chem and CESM's CAM-chem chemistry module may be due to the configuration of model meteorology rather than inherent differences in the model chemistry. This is a significant step towards a truly modular Earth system model and allows two strong but currently separate research communities to benefit from each other's advances.