摘要 文章使用上饶市强降水预警服务快速响应系统查询降水资料,基于中国气象局陆面数据同化系统产品与欧洲中期天气预报中心第五代大气再分析资料数据,针对江西怀玉山地区发生的“22·6”连续性短时强降水事件进行了分析。结果表明:2022-06-17 T 20:00/2022-06-21 T 20:00江西省怀玉山区域遭遇了持续时间较长的强降水过程,共记录到37次短时强降水事件,“山南、山北”类型降水事件发生得最为频繁,占据了短时强降水事件总数的22.2%;山北地区成为强降水的主要集中地,共发生25次短时强降水,占比高达67.6%;短时强降水发生时,怀玉山区域上空的大气环流呈现出典型特征,包括中高层的辐散、中低层的水汽通量显著辐合,以及强烈的垂直上升运动。在怀玉山复杂的地形区域内,山谷风和山脉风的作用尤为显著,共同导致了小尺度风场辐合区的频繁出现。
Abstract:The article uses the Rapid Response System for Heavy Precipitation Warning Services in Shangrao City to query precipitation data.Based on the land surface data assimilation system products of the China Meteorological Administration and the fifth generation atmospheric reanalysis data from the European Centre for Medium Range Weather Forecasts,an analysis was conducted on the "22.6" continuous short-term heavy precipitation event that occurred in the Mount Huaiyu area of Jiangxi Province.The results show that since 2022-06-17 T 20:00/2022-06-21 T 20:00,the Mount Huaiyu area in Jiangxi Province has experienced a prolonged heavy precipitation process,with a total of 37 short-term heavy precipitation events recorded.The "southern and northern mountain" type of precipitation events occurred the most frequently,accounting for 22.2% of the total number of short-term heavy precipitation events.The northern mountainous area has become the main concentration of heavy rainfall,with a total of 25 short-term heavy precipitation events,accounting for as much as 67.6%.When short-term heavy precipitation occurs,the atmospheric circulation over the Mountain Huaiyu area exhibits typical characteristics,including divergence in the middle and upper layers,significant convergence of water vapor flux in the middle and lower layers,and strong vertical upward movement.In the complex terrain area of Mountain Huaiyu,the effects of valley winds and mountain winds are particularly significant,jointly leading to the frequent occurrence of small-scale wind convergence zones.
赖诗琪, 郑丽君, 王璇, 吴文心, 鄢庆涛. 江西怀玉山区域“22·6”大暴雨短时强降水特征分析[J]. 气象水文海洋仪器, 2025, 42(2): 86-90.
Lai Shiqi, Zheng Lijun, Wang Xuan, Wu Wenxin, Yan Qingtao. Analysis on the characteristics of short-term heavy precipitation of "22·6" heavy rainstorm in Mount Huaiyu area,Jiangxi Province. Meteorological Hydrological and Marine Instrument, 2025, 42(2): 86-90.