Articles | Volume 25, issue 5
https://doi.org/10.5194/nhess-25-1719-2025
https://doi.org/10.5194/nhess-25-1719-2025
Research article
 | 
14 May 2025
Research article |  | 14 May 2025

The unique features in the 4 d widespread extreme rainfall event over North China in July 2023

Jinfang Yin, Feng Li, Mingxin Li, Rudi Xia, Xinghua Bao, Jisong Sun, and Xudong Liang

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Cited articles

Bao, X., Sun, J., Yin, J., Gao, X., Li, F., Liang, X., Gu, H., Xia, R., Li, M., Wu, C., and Feng, J.: What Caused the Differences between the July 2023 and August 1996 Extreme Rainfall Events in North China under Similar Synoptic Background?, J. Meteorol. Res.-PRC, 38, 861–879, https://doi.org/10.1007/s13351-024-3192-0, 2024. 
Bowden, J. H., Otte, T. L., Nolte, C. G., and Otte, M. J.: Examining Interior Grid Nudging Techniques Using Two-Way Nesting in the WRF Model for Regional Climate Modeling, J. Climate, 25, 2805–2823, https://doi.org/10.1175/JCLI-D-11-00167.1, 2012. 
Chen, Q., Fan, J., Hagos, S., Gustafson Jr., W. I., and Berg, L. K.: Roles of wind shear at different vertical levels: Cloud system organization and properties, J. Geophys. Res.-Atmos., 120, 6551–6574, https://doi.org/10.1002/2015JD023253, 2015. 
Ding, Y.: A case study on the excessively severe rainstrom in Honan province, early in August, 1975, Scientia Atmospherica Sinica, 2, 276–289, 1978 (in Chinese). 
Dudhia, J.: Numerical Study of Convection Observed during the Winter Monsoon Experiment Using a Mesoscale Two-Dimensional Model, J. Atmos. Sci., 46, 3077–3107, https://doi.org/10.1175/1520-0469(1989)046<3077:NSOCOD>2.0.CO;2, 1989. 
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Short summary
A persistent severe rainfall event occurred over North China in July 2023, which was regarded as one of the most extreme episodes globally during that year. The extreme rainfall was significantly underestimated by forecasters at that time. Flooding from this event affected 1.3 million people, causing severe human casualties and economic losses. We examined the convective initiation and subsequent persistent heavy rainfall based on simulations with the Weather Research and Forecasting model.
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