Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 17, issue 21
Articles | Volume 17, issue 21
https://doi.org/10.5194/gmd-17-7995-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-17-7995-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 21
Development and technical paper
 | 
08 Nov 2024
Development and technical paper |  | 08 Nov 2024

An updated aerosol simulation in the Community Earth System Model (v2.1.3): dust and marine aerosol emissions and secondary organic aerosol formation

Yujuan Wang, Peng Zhang, Jie Li, Yaman Liu, Yanxu Zhang, Jiawei Li, and Zhiwei Han

Supplement

https://doi.org/10.5194/gmd-17-7995-2024-supplement

Data sets

MODIS Atmosphere L3 Daily Product S. Platnick et al. https://doi.org/10.5067/MODIS/MYD08_D3.061

Global dust optical depth climatology data Q. Song et al. https://drive.google.com/drive/folders/1aQVupe7govPwR6qmsqUbR4fJQsp1DBCX?usp=sharing

An emerging ground-based aerosol climatology: Aerosol optical depth from AERONET (https://aeronet.gsfc.nasa.gov/cgi-bin/webtool_aod_v3) B. N. Holben et al. https://doi.org/10.1029/2001JD900014

MERRA-2 tavg1_2d_aer_Nx: 2d,1-Hourly,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics V5.12.4 (M2T1NXAER) Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/KLICLTZ8EM9D

Model code and software

An updated aerosol simulation in the Community Earth System Model (v2.1.3): dust and marine aerosol emissions and secondary organic aerosol formation Yujuan Wang et al. https://doi.org/10.5281/zenodo.11488849

CESM v2.1.3 UCAR/NCAR https://github.com/ESCOMP/CESM/tree/release-cesm2.1.3

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Short summary
This study updates the CESM's aerosol schemes, focusing on dust, marine aerosol emissions, and secondary organic aerosol (SOA) . Dust emission modifications make deflation areas more continuous, improving results in North America and the sub-Arctic. Humidity correction to sea-salt emissions has a minor effect. Introducing marine organic aerosol emissions, coupled with ocean biogeochemical processes, and adding aqueous reactions for SOA formation advance the CESM's aerosol modelling results.
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