Articles | Volume 25, issue 13
https://doi.org/10.5194/acp-25-6823-2025
https://doi.org/10.5194/acp-25-6823-2025
Research article
 | 
04 Jul 2025
Research article |  | 04 Jul 2025

Quantifying transboundary transport flux of CO over the Tibetan Plateau: variabilities and drivers

Zhenda Sun, Hao Yin, Zhongfeng Pan, Chongyang Li, Xiao Lu, Ke Liu, Youwen Sun, and Cheng Liu

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Cited articles

Abe, M., Hori, M., Yasunari, T., and Kitoh, A.: Effects of the Tibetan Plateau on the onsetof the summer monsoon in South Asia: The role of the air–sea interaction, J. Geophys. Res.-Atmos., 118, 1760–1776, https://doi.org/10.1002/jgrd.50210, 2013. 
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Bey, I., Jacob, D. J., Yantosca, R. M., Logan, J. A., Field, B. D., Fiore, A. M., Li, Q., Liu, H. Y., Mickley, L. J., and Schultz, M. G.: Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation, J. Geophys. Res.-Atmos., 106, 23073–23095, https://doi.org/10.1029/2001jd000807, 2001. 
Bian, J., Li, D., Bai, Z., Li, Q., Lyu, D., and Zhou, X.: Transport of Asian surface pollutants to the global stratosphere from the Tibetan Plateau region during the Asian summer monsoon, Natl. Sci. Rev., 7, 516–533, https://doi.org/10.1093/nsr/nwaa005, 2020. 
Bian, J., Pan, L. L., Paulik, L., Vömel, H., Chen, H., and Lu, D.: In situ water vapor and ozone measurements in Lhasa and Kunming during the Asian summer monsoon, Geophys. Res. Lett., 39, L19808, https://doi.org/10.1029/2012gl052996, 2012. 
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This study investigates the variability and driving forces of transboundary CO transport flux over the Tibetan Plateau from May 2018 to April 2024. During this period, external CO influx increased by 2.86 Tg yr-1, while internal efflux slightly declined by 1.70 Tg yr-1. The rising influx in recent years is likely linked to the rapid increase in CO concentrations from South Asia.
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