Articles | Volume 25, issue 15
https://doi.org/10.5194/acp-25-8683-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-8683-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Aug 2025
Research article |
| 11 Aug 2025
| 11 Aug 2025
Identification and characterization of foehn events in Beijing and their impact on air pollution episodes
Institute of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China
Beijing Research Center for Urban Meteorological Engineering and Technology, Beijing, 100089, China
Key Laboratory of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China
State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China
Jingjiang Zhang
Institute of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China
Beijing Research Center for Urban Meteorological Engineering and Technology, Beijing, 100089, China
Mengxin Bai
Beijing Municipal Climate Center, Beijing, 100089, China
Jie Su
Institute of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China
Beijing Research Center for Urban Meteorological Engineering and Technology, Beijing, 100089, China
Qingchun Li
Institute of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China
Beijing Research Center for Urban Meteorological Engineering and Technology, Beijing, 100089, China
Xingcan Jia
Institute of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China
Beijing Research Center for Urban Meteorological Engineering and Technology, Beijing, 100089, China
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Cited articles
Barry, R. G.: Mountain Weather and Climate, 3rd edn., Cambridge University Press, 506 pp., https://doi.org/10.1017/CBO9780511754753, 2008.
Brinkmann, W. A. R.: What is a foehn?, Weather, 26, 230–240, 1971.
Brinkmann, W. A. R.: Strong downslope winds at Boulder, Colorado, Mon. Weather Rev., 102, 592–602, https://doi.org/10.1175/1520-0493(1974)102<0592:SDWABC>2.0.CO;2, 1974.
Cetti, C., Buzzi, M., and Sprenger, M.: Climatology of alpine north foehn, Scientific Report MeteoSwiss, 100, 76 pp., 2015.
Cook, A. J., Fox, A. J., Vaughan, D. G., and Ferrigno, J. G.: Retreating glacier fronts on the Antarctic Peninsula over the past half-century, Science, 308, 541–544, https://doi.org/10.1126/science.1104235, 2005.
Drobinski, P., Steinacker, R., Richner, H., Baumann-Stanzer, K., Beffrey, G., Benech, B., Berger, H., Chimani, B., Dabas, A., Dorninger, M., Dürr, B., Flamant, C., Frioud, M., Furger, M., Gröhn, I., Gubser, S., Gutermann, T., Häberli, C., Häller-Scharnhost, E., Jaubert, G., Lothon, M., Mitev, V., Pechinger, U., Piringer, M., Ratheiser, M., Ruffieux, D., Seiz, G., Spatzierer, M., Tschannett, S., Vogt, S., Werner, R. and Zängl, G.: Foehn in the Rhine valley during MAP: A review of its multiscale dynamics in complex valley geometry, Q. J. Roy. Meteor. Soc., 133, 897–916, https://doi.org/10.1002/qj.70, 2007.
Durran, D. R.: Another look at downslope windstorms. Part I: the development of analogs to supercritical flow in an infinitely deep, continuously stratified fluid, J. Atmos. Sci., 43, 2527–2543, https://doi.org/10.1175/1520-0469(1986)043<2527:ALADWP>2.0.CO;2, 1986.
Elvidge A. D. and Renfrew I. A. The causes of foehn warming in the lee of mountains, B. Am. Meteorol. Soc., 97, 456–466, https://doi.org/10.1175/BAMS-D-14-00194.1, 2016.
Elvidge, A. D., Renfrew, I. A., King, J. C., Orr, A., and Lachlan-Cope, T. A.: Foehn warming distributions in non-linear and linear flow regimes: A focus on the Antarctic Peninsula, Q. J. Roy. Meteor. Soc., 142, 618–631, https://doi.org/10.1002/qj.2489, 2016.
Elvidge, A. D., Munneke, P. K., King, J. C., Renfrew, I. A., and Gilbert, E.: Atmospheric drivers of melt on Larsen C ice shelf: surface energy budget regimes and the impact of foehn, J. Geophys. Res.-Atmos., 125, e2020JD032463, https://doi.org/10.1029/2020JD032463, 2020.
Gohm, A. and Mayr, G. J.: Hydraulic aspects of föhn winds in an alpine valley, Q. J. Roy. Meteor. Soc., 130, 449–480, https://doi.org/10.1256/qj.03.28, 2004.
Guzman-Morales, J., Gershunov, A., Theiss, J., Li, H., and Cayan, D.: Santa Ana winds of Southern California: their climatology, extremes, and behavior spanning six and a half decades, Geophys. Res. Lett., 43, 2827–2834, https://doi.org/10.1002/2016GL067887, 2016.
Haid, M., Gohm, A., Umek, L., Ward, H. C., Muschinski, T., Lehner, L., and Rotach, M. W.: Foehn-cold pool interactions in the Inn Valley during PIANO IOP2, Q. J. Roy. Meteor. Soc., 146, 1232–1263, https://doi.org/10.1002/qj.3735, 2020.
Hoinka, K. P.: Observation of the airflow over the alps during a foehn event, Q. J. Roy. Meteor. Soc., 111, 199–224, 1985a.
Hoinka, K. P.: What is a foehn clearance?, B. Am. Meteorol. Soc., 66, 1123–1132, https://doi.org/10.1175/1520-0477(1985)066<1123:WIAFC>2.0.CO;2, 1985b.
Jansing, L., Papritz, L., Dürr, B., Gerstgrasser, D., and Sprenger, M.: Classification of Alpine south foehn based on 5 years of kilometre-scale analysis data, Weather Clim. Dynam., 3, 1113–1138, https://doi.org/10.5194/wcd-3-1113-2022, 2022.
Jaubert, G., Bougeault, P., Berger, H., Chimani, B., Flamant, C., Häberli, C., Lothon, M., Nuret, M., and Vogt, S.: Numerical simulation of meso-gamma scale features of föhn at ground level in the Rhine valley, Q. J. Roy. Meteor. Soc., 131, 1339–1361, https://doi.org/10.1256/qj.03.197, 2005.
Kohonen, T.: Self-organizing Maps, Springer-Verlag, Heidelberg, https://doi.org/10.1007/978-3-642-97610-0, 1995.
Kuipers Munneke, P., van den Broeke, M. R., King, J. C., Gray, T., and Reijmer, C. H.: Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula, The Cryosphere, 6, 353–363, https://doi.org/10.5194/tc-6-353-2012, 2012.
Kusaka, H. and Fudeyasu, H.: Review of downslope windstorms in Japan, Wind Struct., 24, 637–656, https://doi.org/10.12989/was.2017.24.6.637, 2017.
Kusaka, H., Nishi, A., Kakinuma, A., Doan, Q. V., Onodera, T., and Endo, S.: Japan's south foehn on the Toyama Plain: Dynamical or thermodynamical mechanisms?, Int. J. Climatol., 41, 5350–5367, 2021.
Li, J., Sun, Z., Lenschow, D. H., Zhou, M., Dou, Y., Cheng, Z., Wang, Y., and Li, Q.: A foehn-induced haze front in Beijing: observations and implications, Atmos. Chem. Phys., 20, 15793–15809, https://doi.org/10.5194/acp-20-15793-2020, 2020.
Li, X., Xia, X., Wang, L., Cai, R., Zhao, L., Feng, Z., Ren, Q., and Zhao, K.: The role of foehn in the formation of heavy air pollution events in Urumqi, China, J. Geophys. Res.-Atmos., 120, 5371–5384, https://doi.org/10.1002/2014jd022778, 2015.
Lian, Z. L., Gao, L. S., Zhao, Y. C., and Kuang, S. S.: Climate Characteristic and Formation Mechanism of Continuing High Temperature of Summer in Shijiazhuang, Chinese Journal of Agrometeorology, 29, 387–391, 2008 (in Chinese).
Liao, Z., Xie, J., Fang, X., Wang, Y., Zhang, Y., Xu, X., and Fan, S.: Modulation of synoptic circulation to dry season PM2.5 pollution over the Pearl River Delta region: An investigation based on self-organizing maps, Atmos. Environ., 230, 117482, https://doi.org/10.1016/j.atmosenv.2020.117482, 2020.
Liu, S., Liu, Z., Li, J., Wang, Y., Ma, Y., Sheng, L., Liu, H., Liang,F., Xin, G., and Wang, J.: Numerical simulation for the coupling effect of local atmospheric circulations over the area of Beijing, Tianjin and Hebei province, Sci. China Ser. D, 52, 382–392, https://doi.org/10.1007/s11430-009-0030-2, 2009.
Ma, Q., Wu, Y., Zhang, D., Wang, X., Xia, Y., Liu, X., Tian, P., Han, Z., Xia, X., Wang, Y., and Zhang, R.: Roles of regional transport and heterogeneous reactions in the PM2.5 increase during winter haze episodes in Beijing, Sci. Total Environ., 599–600, 246–253, https://doi.org/10.1016/j.scitotenv.2017.04.193, 2017.
Mayr, G. J., Armi, L., Gohm, A., Drobinski, P., Rotunno, R., and Wernli, H.: Gap flows: Results from the Mesoscale Alpine Programme, Q. J. Roy. Meteor. Soc., 133, 881–896, https://doi.org/10.1002/qj.66, 2007.
McGowan, H. A. and Sturman, A. P.: Regional and local scale characteristics of foehn wind events over the South Island of New Zealand, Meteorol. Atmos. Phys., 58, 151–164, https://doi.org/10.1007/BF01027562, 1996.
McGowan, H. A., Sturman, A. P., Kossmann, M., and Zawar-Reza, P.: Observations of foehn onset in the southern Alps, New Zealand, Meteorol. Atmos. Phys., 79, 215–230, https://doi.org/10.1007/s007030200004, 2002.
Miltenberger, A. K., Reynolds, S., and Sprenger, M.: Revisiting the latent heating contribution to foehn warming: Lagrangian analysis of two foehn events over the Swiss Alps, Q. J. Roy. Meteor. Soc., 142, 2194–2204, https://doi.org/10.1002/qj.2816, 2016.
Ministry of Environmental Protection of the People's Republic of China: Ambient Air Quality Standards (GB 3095-2012) [Standard], China Environmental Science Press, Beijing, ISBN 135111710, 2012a.
Ministry of Environmental Protection of the People's Republic of China: Technical Regulation on Ambient Air Quality Index (on trial) (HJ 633-2012) [Standard], China Environmental Science Press, Beijing, ISBN 203004922, 2012b.
Nishi, A. and Kusaka, H.: Effect of foehn wind on record-breaking high temperature event (41.1 °C) at Kumagaya on 23 July 2018, SOLA, 15, 17–21, https://doi.org/10.2151/sola.2019-004, 2019.
Nishi, A., Kusaka, H., Vitanova, L. L., and Imai, Y.: Contributions of foehn and urban heat Island to the extreme high-temperature event in Niigata city during the night of 23–24 August 2018, SOLA, 15, 132–136, https://doi.org/10.2151/sola.2019-024, 2019.
Ohba, M. and Sugimoto, S.: Impacts of climate change on heavy wet snowfall in Japan, Clim. Dynam., 54, 3151–3164, https://doi.org/10.1007/s00382-020-05163-z, 2020.
Ólafsson, H.: The heat source of the foehn, Hrvat. Meteor. Časopis, 40, 542–545, 2005.
Orr, A., Marshall, G. J., Hunt, J. C., Sommeria, J., Wang, C. G., Van Lipzig, N. P., Cresswell, D., and King, J. C.: Characteristics of summer airflow over the Antarctic Peninsula in response to recent strengthening of westerly circumpolar winds, J. Atmos. Sci., 65, 1396–1413, https://doi.org/10.1175/2007JAS2498.1, 2008.
Raphael, M. N.: The Santa Ana winds of California, Earth Interact., 7, 1–13, https://doi.org/10.1175/1087-3562(2003)007<0001:TSAWOC>2.0.CO;2, 2003.
Richner, H. and Hächler, P.: Understanding and forecasting Alpine foehn, in: Mountain Weather Research and Forecasting: Recent Progress and Current Challenges, edited by: Chow, F. K., De Wekker, S. F. J., and Snyder, B. J., Springer, 219–260, https://doi.org/10.1007/978-94-007-4098-3_4, 2013.
Rolinski, T., Capps, S. B., and Zhuang, W.: Santa Ana winds: A descriptive climatology, Weather Forecast., 34, 257–275, https://doi.org/10.1175/WAF-D-18-0160.1, 2019.
Seibert, P.: South foehn studies since the ALPEX experiment, Meteorol. Atmos. Phys., 43, 91–103, https://doi.org/10.1007/BF01028112, 1990.
Seibert, P., Feldmann, H., Neininger, B., Bäumle, M., and Trickl, T.: South foehn and ozone in the eastern Alps – Case study and climatological aspects, Atmos. Environ., 34, 1379–1394, https://doi.org/10.1016/S1352-2310(99)00439-2, 2000.
Sharples, J. J., Mills, G. A., McRae, R. H. D., and Weber, R. O.: Foehn-like winds and elevated fire danger conditions in southeastern Australia, J. Appl. Meteor. Climatol., 49, 1067–1095, https://doi.org/10.1175/2010JAMC2219.1, 2010.
Shibata, Y., Kawamura, R., and Hatsushika, H.: Role of large-scale circulation in triggering foehns in the Hokuriku district of Japan during midsummer, J. Meteorol. Soc. Jpn., 88, 313–324, https://doi.org/10.2151/jmsj.2010-304, 2010.
Speirs, J. C., McGowan, H. A., Steinhoff, D. F., and Bromwich, D. H.: Regional climate variability driven by foehn winds in the McMurdo Dry Valleys, Antarctica, Int. J. Climatol., 33, 945–958, https://doi.org/10.1002/joc.3481, 2013.
Sun, Y., Chen, C., Zhang, Y., Xu, W., Zhou, L., Cheng, X., Zheng, H., Ji, D., Li, J., Tang, X., Fu, P., and Wang, Z.: Rapid formation and evolution of an extreme haze episode in Northern China during winter 2015, Sci. Rep.-UK, 6, 27151, https://doi.org/10.1038/srep27151, 2016.
Takane, Y. and Kusaka, H.: Formation mechanisms of the extreme high surface air temperature of 40.9 °C, observed in the Tokyo metropolitan area: considerations of dynamic foehn and foehn like wind, J. Appl. Meteorol. Clim., 50, 1827–1841, https://doi.org/10.1175/JAMC-D-10-05032.1, 2011.
Turton, J. V., Kirchgaessner, A., Ross, A. N., and King, J. C.: The spatial distribution and temporal variability of föhn winds over the Larsen C ice shelf, Antarctica, Q. J. Roy. Meteor. Soc., 144, 1169–1178, https://doi.org/10.1002/qj.3284, 2018.
Walker, A. and Ruffner, H.: Föhnforschung und Traubenreife, Schweiz. Z. Obst-Weinbau, 9, 245–247, 1998.
Wang, X.: Historical Data of Air Quality in China, Quotsoft [data set], https://quotsoft.net/air/, last access: 7 August 2025.
Wang, X. and Zhang, R.: Effects of atmospheric circulations on the interannual variation in PM2.5 concentrations over the Beijing–Tianjin–Hebei region in 2013–2018, Atmos. Chem. Phys., 20, 7667–7682, https://doi.org/10.5194/acp-20-7667-2020, 2020.
Wang, Y., Bao, S., Wang, S., Hu, Y., Shi, X., Wang, J., Zhao, B., Jiang, J., Zheng, M., Wu, M., Ruseel, A., Wang, Y., and Hao, J.: Local and regional contributions to fine particulate matter in Beijing during heavy haze episodes, Sci. Total Environ., 580, 283–296, https://doi.org/10.1016/j.scitotenv.2016.12.127, 2017.
Wang, Z. M., Ding, Y. H., Zhang, Y. X., Fan, J. H., Zhang, S. B., and Tian, L. Q.: Feature and Mechanism of the Foehn Weather on East Slope Taihang Mountains II: Case Analysis of the Effects of Lee Wave on Foehn Occurring and Moving, Plateau Meteorology, 31, 555–561, 2012a (in Chinese).
Wang, Z. M., Ding, Y. H., Zhang, Y. X., Wang, C. M., Li, J. B., and Gu, Y. L.: Feature and Mechanism of the Foehn Weather on East Slope Taihang Mountains I: Statistic Feature, Plateau Meteorology, 31, 547–554, 2012b (in Chinese).
Westerling, A. L., Cayan, D. R., Brown, T. J., Hall, B. L., and Riddle, L. G.: Climate, Santa Ana winds and autumn wildfires in southern California, Eos T. Am. Geophys. Un., 85, 289–296, https://doi.org/10.1029/2004EO310001, 2004.
Whiteman, C. D.: Mountain Meteorology: Fundamentals and Applications, Oxford Univ. Press, New York, ISBN 978-0-19-513271-7, 2000.
Würsch, M. and Sprenger, M.: Swiss and Austrian Foehn revisited: A Lagrangian-based analysis, Meteorol. Z., 24, 225–242, https://doi.org/10.1127/metz/2015/0647, 2015.
Xiong, X. P., Wang, S. Y., and Zhang, W.: Analysis of Foehn Characteristics in Middle Section of Taihang Mountains Based on Background Method, Meteorological Science and Technology, 48, 433–437, 2020 (in Chinese).
Yang, X. L., Yang, M., Li, J. B., and Zhang, S.: Impact Analysis of a Taihang Mountain Fohn on Haze Intensity, Meteor. Mon., 44, 313–319, 2018 (in Chinese).
Zhao, B., Wang, P., Ma, J. Z., Zhu, S., Pozzer, A., and Li, W.: A high-resolution emission inventory of primary pollutants for the Huabei region, China, Atmos. Chem. Phys., 12, 481–501, https://doi.org/10.5194/acp-12-481-2012, 2012.
Zhao, S. X., Wang, R. K., Guo, Y. B., Tan, J. L., and Shi, Z. Z.: The Foehn in the Middle Range of Taihang Mountain, Meteor. Mon., 19, 3–6, 1993 (in Chinese).
Zheng, G. J., Duan, F. K., Su, H., Ma, Y. L., Cheng, Y., Zheng, B., Zhang, Q., Huang, T., Kimoto, T., Chang, D., Pöschl, U., Cheng, Y. F., and He, K. B.: Exploring the severe winter haze in Beijing: the impact of synoptic weather, regional transport and heterogeneous reactions, Atmos. Chem. Phys., 15, 2969–2983, https://doi.org/10.5194/acp-15-2969-2015, 2015.
Short summary
This research examines foehn events in Beijing using weather station data from 2015 to 2020. We found an average of 56.5 foehn days annually, primarily in winter. These winds can raise temperatures significantly and are associated with air pollution levels. Strong foehn winds tend to reduce pollution, while weaker winds may increase it. Our study highlights the impact of foehn events on air quality, providing valuable insights for urban planning and environmental management.
This research examines foehn events in Beijing using weather station data from 2015 to 2020. We...
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