Articles | Volume 26, issue 10
https://doi.org/10.5194/acp-26-7485-2026
https://doi.org/10.5194/acp-26-7485-2026
Research article
 | 
29 May 2026
Research article |  | 29 May 2026

Exploring the mechanisms of dust emission and transport based on observations and GEOS-Chem simulations

Peili Zou, Xiaoyan Ma, Rong Tian, Jianqi Zhao, Tong Yang, and Yingying Ku

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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Cited articles

An, L. C., Che, H. Z., Xue, M., Zhang, T. H., Wang, H., Wang, Y. Q., Zhou, C. H., Zhao, H. J., Gui, K., Zheng, Y., Sun, T. Z., Liang, Y. X., Sun, E. W., Zhang, H. D., and Zhang, X. Y.: Temporal and spatial variations in sand and dust storm events in East Asia from 2007 to 2016: Relationships with surface conditions and climate change, Sci. Total Environ., 633, 452–462, https://doi.org/10.1016/j.scitotenv.2018.03.068, 2018. 
Bao, C. L., Yong, M., Bi, L. G., Gao, H. L., Li, J., and Bao, Y. H.: Impacts of Underlying Surface on the Dusty Weather in Central Inner Mongolian Steppe, China, Earth Space Sci., 8, 17, https://doi.org/10.1029/2021ea001672, 2021. 
Bergametti, G. and Forêt, G.: Dust deposition, in: Mineral dust: A key player in the earth system, Springer, 179–200, https://doi.org/10.1007/978-94-017-8978-3_8, 2014. 
Borjigin, A., Bueh, C., Yong, M., Purevjav, G., and Xie, Z. W.: Cross-Border Sand and Dust Storms between Mongolia and Northern China in Spring and Their Driving Weather Systems, Remote Sens., 16, 22, https://doi.org/10.3390/rs16122164, 2024. 
Chaibou, A. A. S., Ma, X., Kumar, K. R., Jia, H., Tang, Y., and Sha, T.: Evaluation of dust extinction and vertical profiles simulated by WRF-Chem with CALIPSO and AERONET over North Africa, J. Atmos. Sol.-Terr. Phy., 199, 105213, https://doi.org/10.1016/j.jastp.2020.105213, 2020. 
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This study examines a severe dust event that occurred in western Inner Mongolia (WIM) on 11 April 2025, which reached Hainan by 13 April. Unlike the dust events in 2021 and 2023 that did not affect Hainan, this case was characterized by a south‑moving Mongolian cyclone. Sustained strong northerly winds pushed both the dust plume and the rainband southward; however, the dust remained positioned behind the rainband, thereby avoiding wet scavenging and facilitating its transport to Hainan.
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