| Synergistic Effect of the Planetary-scale Disturbance,Typhoon and Meso-β-scale Convective Vortex on the Extremely Intense Rainstorm on 20 July 2021 in Zhengzhou |
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| 作者姓名： | Guanshun ZHANG Jiangyu MAO Wei HUA Xiaofei WU Ruizao SUN Ziyu YAN Yimin LIU Guoxiong WU |
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| 作者单位： | 1. Guangzhou Institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction,China Meteorological Administration;2. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG),Institute of Atmospheric Physics, Chinese Academy of Sciences;3. Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology;4. Henan Key Laboratory of Agrometeorological Support and Applied Technique,CMA;5. Henan Meteorological Service Center;6. School of Geo-Science and Technology, Zhengzhou University |
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| 摘 要： | On 20 July 2021, northern Henan Province in China experienced catastrophic flooding as a result of an extremely intense rainstorm, with a record-breaking hourly rainfall of 201.9 mm during 0800–0900 UTC and daily accumulated rainfall in Zhengzhou City exceeding 600 mm(“Zhengzhou 7.20 rainstorm” for short). The multi-scale dynamical and thermodynamical mechanisms for this rainstorm are investigated based on station-observed and ERA-5 reanalysis datasets.The backward trajectory tracking shows that...
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| 关 键 词： | extreme rainstorm potential vorticity trajectory tracking planetary-scale disturbance meso-β-scale convective system |
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