Articles | Volume 19, issue 5
https://doi.org/10.5194/gmd-19-2111-2026
© Author(s) 2026. 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-19-2111-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
16 Mar 2026
Model description paper |
| 16 Mar 2026
| 16 Mar 2026
Development of the global chemistry-climate coupled model BCC-GEOS-Chem v2.0: improved atmospheric chemistry performance and new capability of chemistry-climate interactions
Ruize Sun
Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, China
Haipeng Lin
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
Tongwen Wu
State Key Laboratory of Severe Weather Meteorological Science and Technology, CEMC, Beijing, China
CMA Earth System Modeling and Prediction Centre, China Meteorological Administration, Beijing, China
Xingpei Ye
Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
Lu Shen
Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
Xuan Wang
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
Haolin Wang
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, China
Jingyu Li
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, China
Ni Lu
Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
Jiayin Su
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, China
Jie Zhang
State Key Laboratory of Severe Weather Meteorological Science and Technology, CEMC, Beijing, China
CMA Earth System Modeling and Prediction Centre, China Meteorological Administration, Beijing, China
Fang Zhang
State Key Laboratory of Severe Weather Meteorological Science and Technology, CEMC, Beijing, China
CMA Earth System Modeling and Prediction Centre, China Meteorological Administration, Beijing, China
Xiaoge Xin
State Key Laboratory of Severe Weather Meteorological Science and Technology, CEMC, Beijing, China
CMA Earth System Modeling and Prediction Centre, China Meteorological Administration, Beijing, China
Xiong Liu
Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA 02138, USA
Xiao Yang
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, China
Lin Zhang
CORRESPONDING AUTHOR
Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
Institute of Carbon Neutrality, Peking University, Beijing, China
Center for Environment and Health, Peking University, Beijing, China
Model code and software
BCC-GEOS-Chem v2.0 code Ruize Sun https://doi.org/10.5281/zenodo.18448688
HEMCO module in BCC-GEOS-Chem v2.0 Ruize Sun https://doi.org/10.5281/zenodo.18862941
Model output for BCC-GEOS-Chem v2.0 Ruize Sun https://doi.org/10.5281/zenodo.16734757
geoschem/geos-chem: GEOS-Chem 14.0.1 (14.0.1) B. Yantosca et al. https://doi.org/10.5281/zenodo.7271960
Short summary
We present the development of a global chemistry-climate coupled model BCC-GEOS-Chem v2.0, with improved representation of comprehensive troposphere-stratosphere chemistry and new capability to account for radiative-cloud feedbacks from short-lived climate forcers. The development of the BCC-GEOS-Chem v2.0 provides a useful framework for investigating climate–chemistry interactions and for future projections of global atmospheric chemistry
We present the development of a global chemistry-climate coupled model BCC-GEOS-Chem v2.0, with...
