Articles | Volume 20, issue 9
https://doi.org/10.5194/tc-20-5435-2026
© 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/tc-20-5435-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Sep 2026
Research article |
| 22 Sep 2026
| 22 Sep 2026
Numerical modeling on the mechanisms of chlorine chemistry in snowpack and their impact on secondary atmospheric pollution
Shengjin Xie
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
School of Environment, Harbin Institute of Technology, Harbin, China
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
School of Geographical Sciences, Liaoning Normal University, Dalian, China
Aijun Xiu
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
Hong Qi
School of Environment, Harbin Institute of Technology, Harbin, China
Shengrui Tong
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
Qianjie Chen
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
Chao Gao
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
Hongmei Zhao
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
Shichun Zhang
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
Stephen Dauda Yabo
Department of Geomatics, Faculty of Environmental Design, Ahmadu Bello University, Zaria, Nigeria
Yiming Liu
Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China
Siting Li
Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China
Mengduo Zhang
School of Urban and Rural Planning, Henan University of Economics and Law, Zhengzhou, China
Data sets
Modified model code for N2O5 heterogeneous chemistry (v7.10 REVSED) S. Xie https://doi.org/10.5281/zenodo.22821984
Short summary
This study examines how snow-covered surfaces affect air pollution in Northeast China. Using numerical simulations, we explore chlorine-related chemical reactions that generate reactive species, enhancing fine particles and ozone. Results show that snow-surface reactions drive nighttime pollutant accumulation and notably improve model performance, providing new insights into how snow and surface chemistry influence regional air quality.
This study examines how snow-covered surfaces affect air pollution in Northeast China. Using...
