Description and performance of a sectional aerosol microphysical model in the Community Earth System Model (CESM2)

Tilmes, Simone; Mills, Michael J.; Zhu, Yunqian; Bardeen, Charles G.; Vitt, Francis; Yu, Pengfei; Fillmore, David; Liu, Xiaohong; Toon, Brian; Deshler, Terry

doi:https://doi.org/10.5194/gmd-16-6087-2023

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.

https://doi.org/10.5194/gmd-16-6087-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 21

Model description paper

|

01 Nov 2023

Model description paper |

| 01 Nov 2023

Description and performance of a sectional aerosol microphysical model in the Community Earth System Model (CESM2)

Simone Tilmes, Michael J. Mills, Yunqian Zhu, Charles G. Bardeen, Francis Vitt, Pengfei Yu, David Fillmore, Xiaohong Liu, Brian Toon, and Terry Deshler

Data sets

Mid Latitude | University of Wyoming Stratospheric Aerosol Measurements Terry Deshler https://doi.org/10.15786/21534894.v4

Model code and software

CESM2 carma_trop_strat12 Francis Vitt, Simone Tilmes, and Charles G. Bardeed https://doi.org/10.5281/zenodo.7829697

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.