Articles | Volume 25, issue 4
https://doi.org/10.5194/acp-25-2613-2025
https://doi.org/10.5194/acp-25-2613-2025
Research article
 | 
28 Feb 2025
Research article |  | 28 Feb 2025

Accounting for the black carbon aging process in a two-way coupled meteorology–air quality model

Yuzhi Jin, Jiandong Wang, Chao Liu, David C. Wong, Golam Sarwar, Kathleen M. Fahey, Shang Wu, Jiaping Wang, Jing Cai, Zeyuan Tian, Zhouyang Zhang, Jia Xing, Aijun Ding, and Shuxiao Wang

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Cited articles

Begam, G. R., Vachaspati, C. V., Ahammed, Y. N., Kumar, K. R., Babu, S. S., and Reddy, R. R.: Measurement and analysis of black carbon aerosols over a tropical semi-arid station in Kadapa, India, Atmos. Res., 171, 77–91, https://doi.org/10.1016/J.ATMOSRES.2015.12.014, 2016. 
Bibi, S., Alam, K., Chishtie, F., Bibi, H., and Rahman, S.: Observations of black carbon aerosols characteristics over an urban environment: radiative forcing and related implications, Sci. Total Environ., 603–604, 319–329, https://doi.org/10.1016/J.SCITOTENV.2017.06.082, 2017. 
Binkowski, F. S. and Roselle, S. J.: Models-3 Community Multiscale Air Quality (CMAQ) model aerosol component. 1. Model description, J. Geophys. Res., 108, 4183, https://doi.org/10.1016/J.SCITOTENV.2017.06.082, 2003. 
Bond, T. C. and Bergstrom, R. W.: Light absorption by carbonaceous particles: An investigative review, Aerosol Sci. Tech., 40, 27–67, https://doi.org/10.1080/02786820500421521, 2006. 
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Black carbon (BC) affects climate and the environment, and its aging process alters its properties. Current models, like WRF-CMAQ, lack full accounting for it. We developed the WRF-CMAQ-BCG model to better represent BC aging by introducing bare and coated BC species and their conversion. The WRF-CMAQ-BCG model introduces the capability to simulate BC mixing states and bare and coated BC wet deposition, and it improves the accuracy of BC mass concentration and aerosol optics.
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