Articles | Volume 26, issue 9
https://doi.org/10.5194/acp-26-6507-2026
https://doi.org/10.5194/acp-26-6507-2026
Research article
 | 
15 May 2026
Research article |  | 15 May 2026

Machine-learning-based identification of influencing factors and synoptic patterns of foehn on the eastern foothills of the Taihang Mountains, China

Xinpeng Xu, Shoujuan Shu, Guochen Wang, and Weijun Li

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Cited articles

Aichinger-Rosenberger, M., Brockmann, E., Crocetti, L., Soja, B., and Moeller, G.: Machine learning-based prediction of Alpine foehn events using GNSS troposphere products: first results for Altdorf, Switzerland, Atmos. Meas. Tech., 15, 5821–5839, https://doi.org/10.5194/amt-15-5821-2022, 2022. 
Ayitikan, M., Li, X., He, Q., Musha, Y., Tang, H., Li, S., Zhong, Y., and Ren, G.: Characteristics and Establishment of Objective Identification Criteria and Predictors for Foehn Winds in Urumqi, China, Atmos., 14, 1206, https://doi.org/10.3390/atmos14081206, 2023. 
Beran, D. W.: Large Amplitude Lee Waves and Chinook Winds, J. Appl. Meteorol. Climatol., 6, 865–877, https://doi.org/10.1175/1520-0450(1967)006<0865:LALWAC>2.0.CO;2, 1967. 
Bozkurt, D., Rondanelli, R., Marin, J. C., and Garreaud, R.: Foehn Event Triggered by an Atmospheric River Underlies Record-Setting Temperature Along Continental Antarctica, J. Geophys. Res.-Atmos., 123, 3871–3892, https://doi.org/10.1002/2017JD027796, 2018. 
Breiman, L.: Random forests, Mach. Learn., 45, 5–32, https://doi.org/10.1023/A:1010933404324, 2001. 
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Short summary
We studied warm, dry winds called foehn on the east foothills of China’s Taihang Mountains, where over 30 million people live. Using synopic analysis and machine learning methods, we found these winds are driven mainly by surface conditions and the influence of them varies seasonally. These winds worsen pollution, heatwaves, and fire risk. Our findings help predict these events earlier, protecting health, crops, and air quality in a warming climate.
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