Assessing the sensitivity of aerosol mass budget and effective radiative forcing to horizontal grid spacing in E3SMv1 using a regional refinement approach

Li, Jianfeng; Zhang, Kai; Hassan, Taufiq; Zhang, Shixuan; Ma, Po-Lun; Singh, Balwinder; Yan, Qiyang; Huang, Huilin

doi:https://doi.org/10.5194/gmd-17-1327-2024

Articles | Volume 17, issue 3

https://doi.org/10.5194/gmd-17-1327-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-17-1327-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 3

Model evaluation paper

|

15 Feb 2024

Model evaluation paper |

| 15 Feb 2024

Assessing the sensitivity of aerosol mass budget and effective radiative forcing to horizontal grid spacing in E3SMv1 using a regional refinement approach

Jianfeng Li, Kai Zhang, Taufiq Hassan, Shixuan Zhang, Po-Lun Ma, Balwinder Singh, Qiyang Yan, and Huilin Huang

Supplement

https://doi.org/10.5194/gmd-17-1327-2024-supplement

Data sets

Assessing the Sensitivity of Aerosol Mass Budget and Effective Radiative Forcing to Horizontal Grid Spacing in E3SMv1 Using A Regional Refinement Approach - E3SM LR and RRM simulation data Jianfeng Li et al. https://doi.org/10.5281/zenodo.7782985

MCSs and IDC in the US for 2004–2017 Jianfeng Li et al. https://doi.org/10.25584/1632005

MODIS/Aqua Aerosol Cloud Water Vapor Ozone Monthly L3 Global 1Deg CMG. S. Platnick et al. https://doi.org/10.5067/MODIS/MYD08_M3.061

MODIS/TerraAerosolCloudWaterVaporOzone 95 Monthly L3 Global 1Deg CMG S. Platnick et al. https://doi.org/10.5067/MODIS/MOD08_M3.061

Short summary

By comparing E3SM simulations with and without regional refinement, we find that model horizontal grid spacing considerably affects the simulated aerosol mass budget, aerosol–cloud interactions, and the effective radiative forcing of anthropogenic aerosols. The study identifies the critical physical processes strongly influenced by model resolution. It also highlights the benefit of applying regional refinement in future modeling studies at higher or even convection-permitting resolutions.