大气环境过程计算机分析与模拟 ；

污染气象学

大气边界层物理

主要从事大气物理与大气环境方面的数值模式和模拟研究，也参与实验观测资料的气象学、微气象学分析与模拟。曾自主开发大气边界层大涡模式、三维风场诊断模式、拉格朗日随机粒子扩散模式、甲烷排放和氨排放的反向扩散(印痕)反演模式等。参与核电厂址大气扩散实验与模拟研究。在大气湍流、扩散等问题的学术研究和工程应用中取得成果。

“中国核电厂大气弥散实验与理论研究”，国家国防科学技术工业委员会：国防科学技术一等奖，2000

“基于数值天气预报与大气扩散模型的污染事故诊断与评估”，天津市科学技术进步三等奖，2010

“内陆厂址大气弥散模式研究”，中国核工业集团公司科学技术二等奖，2016

“核设施设计基准热带气旋龙卷风、极端风的大气弥散条件适应性研究”，中国核能行业协会：科学技术奖（二等奖），2016

代表性论文

Chen JY, Cai XH, Wang HY, Zhang HS, Kang L, Song Y, Zhu H, Zheng W, Li FJ. Tornado Climatology of China, International Journal of Climatology, 2018, 38: 2478-248921.

Yan, Y., Cai, X., Wang, X., Miao, Y., & Song, Y. (2021). Low-level jet climatology of China derived from longterm radiosonde observations. Journal of Geophysical Research: Atmospheres, 126, e2021JD035323.19.

Jin, X., Cai, X., Huang, Q., Wang, X., Song, Y., & Zhu, T. (2021). Atmospheric boundary layer—free troposphere air exchange in the north china plain and its impact on PM2.5 pollution. Journal of Geophysical Research: Atmospheres, 126, e2021JD034641.

Xun Hu, Xuhui Cai, Yujie Cai, Xuesong Wang, Yu Song, Xiaobin Wang, Ling Kang, Hongsheng Zhang, Unusual Inland Intrusion of Nocturnal Sea Breeze in the North China Plain During Summer. Theoretical and Applied Climatology, Volume 155, pages 8319–8335, (2024).

Cai, XH., Song Y., Zhu T., Lin W., and Kang L. (2007), Glacier winds in the Rongbuk Valley, north of Mount Everest:2. Their role in vertical exchange processes, J. Geophys. Res., 112, D11102, doi:10.1029/2006JD007868.

Cai XH, Huo Q, Kang L, Song Y, Equilibrium atmospheric boundary layer flow: computational fluid dynamics simulation with balanced forces, Bound-Layer Meteorol., 2014, 152(3): 349–366, DOI: 10.1007/s10546-014-9928-0

Qing Huo, Xuhui Cai, Ling Kang, Hongsheng Zhang, Yu Song, Tong Zhu, Estimating ammonia emissions from a winter wheat cropland in North China Plain with field experiments and inverse dispersion modeling, Atmos Environ, 2015, 104, 1-10. DOI:10.1016/j.atmosenv.2015.01.003

Qianqian Huang, Xuhui Cai, JianWang, Yu Song, and Tong Zhu, Climatological study of the Boundary-layer air Stagnation Index for China and its relationship with air pollution, Atmos. Chem. Phys., 2018, 18: 7573–7593.

Xipeng Jin, Xuhui Cai, Mingyuan Yu, Xiaobin Wang, Yu Song, Xuesong Wang, Hongsheng Zhang, Tong Zhu, Regional PM2.5 pollution confined by atmospheric internal boundaries in the North China Plain: Analysis based on surface observations, Science of the Total Environment 841 (2022) 156728

Zhu Mei, Haobin Liu, Xuhui Cai*, Hongsheng Zhang, Ling Kang, Yujie Cai, Yu Song, Tong Zhu, Ammonia emissions of an open-lot dairy in North China Plain: Field experiments and source inversion, Agricultural and Forest Meteorology, (2023), 341, 109633.

学术著作

蔡旭晖，宋宇：《污染气象学廿一讲》，北京，气象出版社，2021