Articles | Volume 16, issue 21
https://doi.org/10.5194/gmd-16-6087-2023
© Author(s) 2023. 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-16-6087-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
01 Nov 2023
Model description paper |
| 01 Nov 2023
| 01 Nov 2023
Description and performance of a sectional aerosol microphysical model in the Community Earth System Model (CESM2)
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Michael J. Mills
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Yunqian Zhu
Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA
Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Boulder, CO, USA
Charles G. Bardeen
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Francis Vitt
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Pengfei Yu
Institute for Environment and Climate Research, Jinan University, Guangzhou, China
David Fillmore
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Xiaohong Liu
Department of Atmospheric Sciences, Texas A&M University, College Station, TX, USA
Brian Toon
Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Boulder, CO, USA
Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Boulder, CO, USA
Terry Deshler
Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Boulder, CO, USA
formerly at: Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
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- Assessing the stratospheric temperature response to volcanic sulfate injections by Mt. Pinatubo: insights from the Interactive Stratospheric Aerosol Model Intercomparison Project K. Perny et al. https://doi.org/10.5194/acp-26-10997-2026
- Are Northern Hemisphere boreal forest fires more sensitive to future aerosol mitigation than to greenhouse gas–driven warming? R. Allen et al. https://doi.org/10.1126/sciadv.adl4007
- Key Gaps in Models' Physical Representation of Climate Intervention and Its Impacts S. Eastham et al. https://doi.org/10.1029/2024MS004872
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- Analysis of the global atmospheric background sulfur budget in a multi-model framework C. Brodowsky et al. https://doi.org/10.5194/acp-24-5513-2024
- Climatic and ecological responses to Bennu-type asteroid collisions L. Dai & A. Timmermann https://doi.org/10.1126/sciadv.adq5399
- Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP2Ex campaign G. Lorenzo et al. https://doi.org/10.5194/acp-25-5469-2025
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- New submodel for emissions from Explosive Volcanic ERuptions (EVER v1.1) within the Modular Earth Submodel System (MESSy, version 2.55.1) M. Kohl et al. https://doi.org/10.5194/gmd-18-3985-2025
- World Climate Research Programme lighthouse activity: an assessment of major research gaps in solar radiation modification research J. Haywood et al. https://doi.org/10.3389/fclim.2025.1507479
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- The impact of aerosol forcing on the statistical attribution of heatwaves F. Kraulich et al. https://doi.org/10.1016/j.wace.2025.100803
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- An unrecognized mode of small particles in the lower stratosphere M. Lyu et al. https://doi.org/10.1126/science.adw8939
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- Efficacy assessment of stratospheric aerosol scrubbing as a counter climate intervention strategy A. Jones et al. https://doi.org/10.5194/acp-26-7589-2026
23 citations as recorded by crossref.
- Increasing aerosol emissions from boreal biomass burning exacerbate Arctic warming Q. Zhong et al. https://doi.org/10.1038/s41558-024-02176-y
- Uncertainties of SAI efficiency and impacts depending on the complexity of the aerosol microphysical model S. Tilmes et al. https://doi.org/10.5194/acp-26-2649-2026
- Validating a microphysical prognostic stratospheric aerosol implementation in E3SMv2 using observations after the Mount Pinatubo eruption H. Brown et al. https://doi.org/10.5194/gmd-17-5087-2024
- Assessing the stratospheric temperature response to volcanic sulfate injections by Mt. Pinatubo: insights from the Interactive Stratospheric Aerosol Model Intercomparison Project K. Perny et al. https://doi.org/10.5194/acp-26-10997-2026
- Are Northern Hemisphere boreal forest fires more sensitive to future aerosol mitigation than to greenhouse gas–driven warming? R. Allen et al. https://doi.org/10.1126/sciadv.adl4007
- Key Gaps in Models' Physical Representation of Climate Intervention and Its Impacts S. Eastham et al. https://doi.org/10.1029/2024MS004872
- AerChemMIP2 – unraveling the role of reactive gases, aerosol particles, and land use for air quality and climate change in CMIP7 S. Fiedler et al. https://doi.org/10.5194/gmd-19-3477-2026
- Potential effects of climate change and solar radiation modification on renewable energy resources A. Kumler et al. https://doi.org/10.1016/j.rser.2024.114934
- Air quality impacts of stratospheric aerosol injections are likely small and mainly driven by changes in climate, not aerosol settling C. Wang et al. https://doi.org/10.5194/acp-26-1339-2026
- Analysis of the global atmospheric background sulfur budget in a multi-model framework C. Brodowsky et al. https://doi.org/10.5194/acp-24-5513-2024
- Climatic and ecological responses to Bennu-type asteroid collisions L. Dai & A. Timmermann https://doi.org/10.1126/sciadv.adq5399
- Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP2Ex campaign G. Lorenzo et al. https://doi.org/10.5194/acp-25-5469-2025
- Hunga Tonga–Hunga Ha′apai Volcano Impact Model Observation Comparison (HTHH-MOC) project: experiment protocol and model descriptions Y. Zhu et al. https://doi.org/10.5194/gmd-18-5487-2025
- Impact of SO2 injection profiles on simulated volcanic forcing for the 2009 Sarychev eruptions – investigating the importance of using high-vertical-resolution methods when compiling SO2 data E. Axebrink et al. https://doi.org/10.5194/acp-25-2047-2025
- New submodel for emissions from Explosive Volcanic ERuptions (EVER v1.1) within the Modular Earth Submodel System (MESSy, version 2.55.1) M. Kohl et al. https://doi.org/10.5194/gmd-18-3985-2025
- World Climate Research Programme lighthouse activity: an assessment of major research gaps in solar radiation modification research J. Haywood et al. https://doi.org/10.3389/fclim.2025.1507479
- Kicking the can down the road: understanding the effects of delaying the deployment of stratospheric aerosol injection E. Brody et al. https://doi.org/10.1088/2752-5295/ad53f3
- Idealized particle-resolved large-eddy simulations to evaluate the impact of emissions spatial heterogeneity on CCN activity S. Frederick et al. https://doi.org/10.5194/acp-26-4863-2026
- The impact of aerosol forcing on the statistical attribution of heatwaves F. Kraulich et al. https://doi.org/10.1016/j.wace.2025.100803
- Multi-model analysis of the impact of water vapor on the radiative forcing of volcanic aerosols after the 2022 Hunga Eruption I. Quaglia et al. https://doi.org/10.5194/acp-26-7677-2026
- An unrecognized mode of small particles in the lower stratosphere M. Lyu et al. https://doi.org/10.1126/science.adw8939
- Prescribing the aerosol effective radiative forcing in the Simple Cloud-Resolving E3SM Atmosphere Model v1 N. Mahfouz et al. https://doi.org/10.5194/acp-25-15105-2025
- Efficacy assessment of stratospheric aerosol scrubbing as a counter climate intervention strategy A. Jones et al. https://doi.org/10.5194/acp-26-7589-2026
Saved (final revised paper)
Latest update: 25 Aug 2026
Short summary
We implemented an alternative aerosol scheme in the high- and low-top model versions of the Community Earth System Model Version 2 (CESM2) with a more detailed description of tropospheric and stratospheric aerosol size distributions than the existing aerosol model. This development enables the comparison of different aerosol schemes with different complexity in the same model framework. It identifies improvements compared to a range of observations in both the troposphere and stratosphere.
We implemented an alternative aerosol scheme in the high- and low-top model versions of the...
