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.
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.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
30 Nov 2022
Model description paper |
| 30 Nov 2022
| 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
Laboratory for Aviation and the Environment, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Laboratory for Aviation and the Environment, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Louisa K. Emmons
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO 80305, USA
Haipeng Lin
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
Elizabeth W. Lundgren
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
Steve Goldhaber
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO 80305, USA
Steven R. H. Barrett
Laboratory for Aviation and the Environment, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Daniel J. Jacob
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
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Cited
13 citations as recorded by crossref.
- Sensitivity of photochemical surface ozone formation regimes to emissions and meteorology in India G. Gopikrishnan et al. https://doi.org/10.5194/acp-26-1907-2026
- Advancing air pollution forecasting: a review of physical, statistical, and machine learning methods A. Rawat et al. https://doi.org/10.1007/s11356-026-37789-7
- Anthropogenic nitrogen impacts on global PM2.5–O3 co-pollution health burden S. Liu et al. https://doi.org/10.1016/j.envint.2026.110343
- Observing network effect of shipping emissions from space: A natural experiment in the world’s busiest port S. Liu et al. https://doi.org/10.1093/pnasnexus/pgad391
- Technical note: 12 km resolution capability for the global GEOS-Chem model of atmospheric composition X. Wang et al. https://doi.org/10.5194/acp-26-6857-2026
- A model study investigating the sensitivity of aerosol forcing to the volatilities of semi-volatile organic compounds M. Irfan et al. https://doi.org/10.5194/acp-24-8489-2024
- Short-Term Exposure to Fine Particulate Matter and Ozone: Source Impacts and Attributable Mortalities S. Liu et al. https://doi.org/10.1021/acs.est.4c00339
- Development of the global chemistry-climate coupled model BCC-GEOS-Chem v2.0: improved atmospheric chemistry performance and new capability of chemistry-climate interactions R. Sun et al. https://doi.org/10.5194/gmd-19-2111-2026
- Underappreciated roles of soil nitrogen oxide emissions on global acute health burden S. Liu et al. https://doi.org/10.1016/j.envint.2024.109087
- Impacts of updated reaction kinetics on the global GEOS-Chem simulation of atmospheric chemistry K. Bates et al. https://doi.org/10.5194/gmd-17-1511-2024
- Intercomparison of GEOS-Chem and CAM-chem tropospheric oxidant chemistry within the Community Earth System Model version 2 (CESM2) H. Lin et al. https://doi.org/10.5194/acp-24-8607-2024
- Ozone pollution reduction partially offsets the negative impact of climate change mitigation efforts on global hunger S. Xia et al. https://doi.org/10.1038/s43016-026-01322-3
- Developing the chemistry module for 27 fluorinated greenhouse gases (F-gases): Reactions, emissions, and implementation in GEOS-Chem Y. Li et al. https://doi.org/10.1016/j.atmosenv.2025.121604
13 citations as recorded by crossref.
- Sensitivity of photochemical surface ozone formation regimes to emissions and meteorology in India G. Gopikrishnan et al. https://doi.org/10.5194/acp-26-1907-2026
- Advancing air pollution forecasting: a review of physical, statistical, and machine learning methods A. Rawat et al. https://doi.org/10.1007/s11356-026-37789-7
- Anthropogenic nitrogen impacts on global PM2.5–O3 co-pollution health burden S. Liu et al. https://doi.org/10.1016/j.envint.2026.110343
- Observing network effect of shipping emissions from space: A natural experiment in the world’s busiest port S. Liu et al. https://doi.org/10.1093/pnasnexus/pgad391
- Technical note: 12 km resolution capability for the global GEOS-Chem model of atmospheric composition X. Wang et al. https://doi.org/10.5194/acp-26-6857-2026
- A model study investigating the sensitivity of aerosol forcing to the volatilities of semi-volatile organic compounds M. Irfan et al. https://doi.org/10.5194/acp-24-8489-2024
- Short-Term Exposure to Fine Particulate Matter and Ozone: Source Impacts and Attributable Mortalities S. Liu et al. https://doi.org/10.1021/acs.est.4c00339
- Development of the global chemistry-climate coupled model BCC-GEOS-Chem v2.0: improved atmospheric chemistry performance and new capability of chemistry-climate interactions R. Sun et al. https://doi.org/10.5194/gmd-19-2111-2026
- Underappreciated roles of soil nitrogen oxide emissions on global acute health burden S. Liu et al. https://doi.org/10.1016/j.envint.2024.109087
- Impacts of updated reaction kinetics on the global GEOS-Chem simulation of atmospheric chemistry K. Bates et al. https://doi.org/10.5194/gmd-17-1511-2024
- Intercomparison of GEOS-Chem and CAM-chem tropospheric oxidant chemistry within the Community Earth System Model version 2 (CESM2) H. Lin et al. https://doi.org/10.5194/acp-24-8607-2024
- Ozone pollution reduction partially offsets the negative impact of climate change mitigation efforts on global hunger S. Xia et al. https://doi.org/10.1038/s43016-026-01322-3
- Developing the chemistry module for 27 fluorinated greenhouse gases (F-gases): Reactions, emissions, and implementation in GEOS-Chem Y. Li et al. https://doi.org/10.1016/j.atmosenv.2025.121604
Saved (final revised paper)
Latest update: 15 Jun 2026
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.
We bring the state-of-the-science chemistry module GEOS-Chem into the Community Earth System...
