党瑞君，北京大学地球与空间科学学院助理教授、研究员、博士生导师、博雅青年学者，入选国家海外高层次人才引进计划。课题组围绕“大气成分-空气污染-气候变化”展开研究，致力于使用卫星遥感和大气化学模型来监测和理解大气成分的源汇过程、演变机制与环境气候效应。

加入北大前，曾在哈佛大学指导多位本科生/博士生的暑期科研项目，并作为共同导师指导多位硕士生/博士生，包括：

• Jaden Southern（斯坦福大学本科生，暑期项目研究内容：TEMPO卫星HCHO与NO2产品的评估与ozone敏感性检验）

• Wei Zhou, Shuxin Li, and Liubin Pan（南京信息工程大学硕士/博士生，短期访问项目）

• Yunxiao Tang（哈佛大学硕士生，研究内容：利用TEMPO卫星约束氮氧化物排放）

• Laura Yang（哈佛大学博士生，研究内容：基于GEMS静止卫星的NO2日变化机制研究）

本科生选修课：大气成分与气候韧性（upcoming）

研究生课程：大气环境模式基础与遥感应用（upcoming）

2025         NASA GMAO GEOS-CF Workshop, Virtual (Invited talk)

2025        NOAA CSL AGES+ Seminar, Virtual (Invited talk)

2024         Nanjing University, School of Atmospheric Sciences Seminar, Nanjing, China (Invited talk)

2024         Nanjing University of Information Science & Technology, School of Environmental Science and Engineering Seminar, Nanjing, China (Invited talk)

2024         Nankai University, College of Environmental Science and Engineering Seminar, Tianjin, China (Invited talk)

•  国家自然科学基金优秀青年科学基金项目（海外），主持，2025-2028（在研）

•  三星集团（Samsung）资助项目，Improved understanding of PM2.5 in Korea and China through integrated modeling and analysis of satellite, aircraft, and surface observations，参与，2022-2025（已结题）

• 美国环境保护署（EPA）项目，Improving chemical mechanisms for regional/global models in support of US air quality management: application to the GEOS-Chem model，参与，2020-2024（已结题）

• 美国国家航空航天局（NASA）项目，Improved characterization of the tropospheric NO2 background for retrieval and interpretation of NO2 columns from satellites，参与，2020-2023（已结题）

§  Proposal reviewer: NASA (2025)

§  Co-Chair:   TEMPO/GeoXO ACX Joint Science Team Workshop, Science and Applications Session (2025)

§  Leader: Air Quality & Chemistry subgroup, Harvard Atmospheric Chemistry Modeling Group (2022 – present)

§  Organizer: Harvard Atmospheric & Environmental Chemistry Seminars (2022 – 2023)

§  Participant: TEMPO Science Team Meeting on Validation of Satellite Products (November 2023 – April 2025)

§  Member:  American Geophysical Union, American Meteorological Society

§  Volunteer: OSPA Judge at AGU Fall Meeting (2023, 2024)

完整学术列表见https://scholar.google.com/citations?user=_ulA8XYAAAAJ&hl=en

[22] Dang, R., Jacob, D. J., Wang, H., Nowlan, C. R., Gonzalez Abad, G., Chong, H., Liu, X., Shah, V., Yang, L. H., Oak, Y. J., Marais, E. A., Horner, R. P., Rollins, A. W., Crawford, J. H., Li, K., and Liao, H.: High-resolution geostationary satellite observations of free tropospheric NO₂ over North America: implications for lightning emissions, https://doi.org/10.1073/pnas.2510535122, Proceedings of the National Academy of Sciences, 2025.

[21] Yang, L. H., Jacob, D. J., Bates, K. H., Lin, H., Allen, H. M., Muller, J.-F., Brown, S. S., Dang, R., Colombi, N. K., Zhai, S., Yantosca, R. M., Brewer, J. F., Ng, N. L., Crounse, J. D., Wennberg, P. O., Li, K., Liao, H.: Modeling of methyl hydroperoxide observations in urban and remote air over South Korea: methylperoxy radical chemistry and inference of atmospheric methanediol, https://doi.org/10.1029/2025GL118267, Geophysical Research Letters, 2025.

[20] Pendergrass, D. C., Jacob, D. J., Oak, Y. J., Dang, R., Yang, L. H., Beaudry, E., Zhai, S., Kim, H., Chi, J., Park, J., Kim, S., Li, K., and Liao, H.: Wintertime trends of fine particulate matter (PM_2.5) in South Korea, 2012-2022: response of nitrate and organic components to decreasing NO_x emissions, https://doi.org/10.1029/2025GL116091, Geophysical Research Letters, 2025.

[19] Li, B., Liao, H., Li, K., Lin, J., Gong, C., Liu, H., Li, Y., Chen, L., Yang, Y., Jin, X., Zhao, Y., Wang, T., Jin, J., Dang, R., and Jacob, D. J.: Environmental burden and health inequity in China’s road-based express delivery, https://doi.org/10.1038/s44284-025-00300-3, Nature Cities, 2025.

[18] Oak, Y. J., Jacob, D. J., Pendergrass, D. C., Dang, R., Chong, H., Lee, S., Kuk, S., and Kim, J.: Air quality trends and regimes in South Korea inferred from 2015-2023 surface and satellite observations, https://doi.org/10.5194/acp-25-3233-2025, Atmospheric Chemistry and Physics, 2025.

[17] Yang, L. H., Jacob, D. J., Lin, H., Dang, R., Bates, K. H., East, J. D., Travis, K. R., Pendergrass, D. C., and Murray, L. T.: Assessment of hydrogen’s climate impact is affected by model OH biases, https://doi.org/10.1029/2024GL112445, Geophysical Research Letters, 2025.

[16] Li, B., Liao, H., Li, K., Wang, Y., Zhang, L., Guo, Y., Liu, L., Jin, J., Yang, Y., Gong, C., Wang, T., Shen, W., Wang, P., Dang, R., Liao, K., Zhu, Q., and Jacob, D. J.: Unlocking nitrogen management potential via large-scale farming for air quality and substantial co-benefits, https://doi.org/10.1093/nsr/nwae324, National Science Review, 2024.

[15] Dang, R., Jacob, D. J., Zhai, S., Yang, L. H., Pendergrass D. C., Coheur, P., Clarisse, L., Van Damme, M., Choi, J., Park, J., Liu, Z., Xie, P., and Liao, H.: A satellite-based indicator for diagnosing particulate nitrate sensitivity to precursor emissions: application to East Asia, Europe, and North America, https://doi.org/10.1021/acs.est.4c08082, Environmental Science & Technology, 2024.

[14] Lin, H., Emmons, L. K., Lundgren, E. W., Yang, L. H., Feng, X., Dang, R., Zhai, S., Tang, Y., Kelp, M. M., Colombi, N. K., Eastham, S. D., Fritz, T. M., and Jacob, D. J.: Intercomparison of GEOS-[1] Chem and CAM-chem tropospheric oxidant chemistry within the Community Earth System Model version 2 (CESM2), https://doi.org/10.5194/acp-24-8607-2024, Atmospheric Chemistry and Physics, 2024.

[13] Yang, L. H., Jacob, D. J., Dang, R., Oak, Y. J., Lin, H., Kim, J., Zhai, S., Colombi, N. K., Pendergrass, D. C., Beaudry, E., Shah, V., Feng, X., Yantosca, R. M., Chong, H., Park, J., Lee, H., Lee, W. J., Kim, S., Kim, E., Travis, K. R., Crawford, J. H., and Liao, H.: Interpreting GEMS geostationary satellite observations of the diurnal variation of nitrogen dioxide (NO₂) over East Asia, https://doi.org/10.5194/acp-24-7027-2024, Atmospheric Chemistry and Physics, 2024.

[12] Zhai, S., Jacob, D. J., Franco, B., Clarisse, L., Coheur, P., Shah, V., Bates, K. H., Lin, H., Dang, R., Sulprizio, M. P., Huey, L. G., Moore, F. L., Jaffe, D. A., and Liao, H.: Transpacific transport of Asian peroxyacetyl nitrate (PAN) observed from satellite: implications for ozone, https://doi.org/10.1021/acs.est.4c01980, Environmental Science & Technology, 2024.

[11] Dang, R., Jacob, D. J., Zhai, S., Coheur, P., Clarisse, L., Van Damme, M., Pendergrass, D. C., Choi, J.-s., Park, J.-s., Liu, Z., and Liao, H.: Diagnosing the Sensitivity of Particulate Nitrate to Precursor Emissions Using Satellite Observations of Ammonia and Nitrogen Dioxide, https://doi.org/10.1029/2023GL105761, Geophysical Research Letters, 2023.

[10] Dang, R., Jacob, D. J., Shah, V., Eastham, S. D., Fritz, T. M., Mickley, L. J., Liu, T., Wang, Y., and Wang, J.: Background nitrogen dioxide (NO₂) over the United States and its implications for satellite observations and trends: effects of nitrate photolysis, aircraft, and open fires, https://doi.org/10.5194/acp-23-6271-2023, Atmospheric Chemistry and Physics, 2023.

[9] Shah, V., Jacob, D. J., Dang, R., Lamsal, L. N., Strode, S. A., Steenrod, S. D., Boersma, K. F., Eastham, S. D., Fritz, T. M., Thompson, C., Peischl, J., Bourgeois, I., Pollack, I. B., Nault, B. A., Cohen, R. C., Campuzano-Jost, P., Jimenez, J. L., Andersen, S. T., Carpenter, L. J., Sherwen, T., and Evans, M. J.: Nitrogen oxides in the free troposphere: implications for tropospheric oxidants and the interpretation of satellite NO₂ measurements, https://doi.org/10.5194/acp-23-1227-2023, Atmospheric Chemistry and Physics, 2023.

[8] Li, J., Hao, X., Liao, H., Dai, H., Li, N., Gu, Y., Dang, R., Li, B., and Wei, Y.: Air pollution mitigation in North China through flexible heating policies, https://doi.org/10.1088/1748-9326/acb3e2, Environmental Research Letter, 2023.

[7] Wang, P., Yang, Y., Li, H., Chen, L., Dang, R., Xue, D., Li, B., Tang, J., Leung, L. R., and Liao, H.: North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperatures, https://doi.org/10.5194/acp-22-4705-2022, Atmospheric Chemistry and Physics, 2022.

[6] Dang, R., Liao, H., and Fu, Y.: Quantifying the anthropogenic and meteorological influences on summertime surface ozone in China over 2012-2017, https://doi.org/10.1016/j.scitotenv.2020.142394, Science of the Total Environment, 2021.

[5] Hao, X., Li, J., Wang, H., Liao, H., Yin, Z., Hu, J., Wei, Y., and Dang, R.: Long-term health impact of PM_2.5 under whole-year COVID-19 lockdown in China, https://doi.org/10.1016/j.envpol.2021.118118, Environmental Pollution, 2021.

[4] Gong, C., Liao, H., Zhang, L., Yue, X., Dang, R., and Yang, Y.: Persistent ozone pollution episodes in North China exacerbated by regional transport, https://doi.org/10.1016/j.envpol.2020.115056,  Environmental Pollution, 2020.

[3] Dang, R., and Liao, H.: Radiative forcing and health impact of aerosols and ozone in China as the consequence of clean air actions over 2012-2017, https://doi.org/10.1029/2019GL084605, Geophysical Research Letters, 2019.

[2] Dang R., and Liao, H.: Severe winter haze days in the Beijing-Tianjin-Hebei region from 1985-2017 and the roles of anthropogenic emissions and meteorology, https://doi.org/10.5194/acp-19-10801-2019, Atmospheric Chemistry and Physics, 2019.

[1] Zhu, J., Chen, L., Liao, H., and Dang, R.: Correlations between PM_2.5 and Ozone over China and Associated Underlying Reasons, https://doi.org/10.3390/atmos10070352, Atmosphere, 2019.