Articles | Volume 15, issue 4
https://doi.org/10.5194/gmd-15-1821-2022
© 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-15-1821-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development and technical paper
| 
03 Mar 2022
Development and technical paper |
| 03 Mar 2022
| 03 Mar 2022
A three-dimensional variational data assimilation system for aerosol optical properties based on WRF-Chem v4.0: design, development, and application of assimilating Himawari-8 aerosol observations
Daichun Wang
College of Meteorology and Oceanography, National University of
Defense Technology, Changsha, 410005, China
College of Meteorology and Oceanography, National University of
Defense Technology, Changsha, 410005, China
Zengliang Zang
College of Meteorology and Oceanography, National University of
Defense Technology, Changsha, 410005, China
Xiaobin Pan
College of Meteorology and Oceanography, National University of
Defense Technology, Changsha, 410005, China
Yiwen Hu
College of Meteorology and Oceanography, National University of
Defense Technology, Changsha, 410005, China
School of Atmospheric Physics, Nanjing University of Information
Science & Technology, Nanjing, 211101, China
Yanfei Liang
College of Meteorology and Oceanography, National University of
Defense Technology, Changsha, 410005, China
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Short summary
This paper presents a 3D variational data assimilation system for aerosol optical properties, including aerosol optical thickness (AOT) retrievals and lidar-based aerosol profiles, which was developed for a size-resolved sectional model in WRF-Chem. To directly assimilate aerosol optical properties, an observation operator based on the Mie scattering theory was designed. The results show that Himawari-8 AOT assimilation can significantly improve model aerosol analyses and forecasts.
This paper presents a 3D variational data assimilation system for aerosol optical properties,...
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