摘要
为了监测预警武宁大暴雨天气,文章利用MICAPS常规天气数据、地面自动气象站气象数据、雷达拼图回波数据等资料,采用天气学原理、雷达气象学原理等技术方法,对2022-05-29武宁一次大暴雨天气过程进行分析,对此次过程中的预报服务进行复盘,结果表明:2022-05-29武宁大暴雨,伴随≥30 mm/h的短时强降水;降水时空分布不均,大暴雨集中分布在武宁县中部一带,强降水主要出现在08:00—14:00,雨量量级与回波强度变化一致;大暴雨主要受高空槽、低层切变线和西南急流共同影响;强降水时段主要受短带回波上反复经过的强单体影响,回波强度为45~55 dBZ;强降水发生前风暴跟踪信息具有密集指向区平行于带状回波的特征,降水持续时间长,有利于发生短时强降水,对临近预报具有很好的指示意义。监测预警、预报服务和实况检验为今后类似天气的预报服务提供宝贵经验。
In order to monitor and warn the heavy rainstorm weather in Wuning,using MICAPS conventional weather data,ground automatic weather station meteorological data,radar puzzle echo data and other data,using the principles of meteorology,radar meteorology and other technical methods,this paper analyzes a heavy rainstorm weather process in Wuning on May 29,2022,and resumes the forecast service in this process.The results show that the heavy rainstorm in Wuning on May 29,2022 accompanied by short-term heavy rainfall at or above 30 mm/h.The precipitation is unevenly distributed in time and space,and the heavy rain is concentrated in the central area of Wuning County.The heavy rainfall mainly occurs in the period of 08:00~14:00,and the rainfall magnitude is consistent with the change of echo intensity.The heavy rain is mainly affected by high-level trough,low-level shear line and southwest jet.The strong precipitation period is mainly affected by the repeated passing of strong monomers on the short band echo,and the echo intensity is 45~55 dBZ.The storm tracking information before the occurrence of heavy rainfall has the characteristics that the dense pointing area is parallel to the strip echo,and the rainfall lasts for a long time,which is conducive to the occurrence of short-term heavy rainfall,and has a good indication for the near forecast.The monitoring early warning,forecasting services and live verification provide valuable experience for similar weather forecasting services in the future.
作者
万红燕
马中元
刘懿枢
朱丽霞
Wan Hongyan;Ma Zhongyuan;Liu Yishu;Zhu Lixia(Wuning Meteorological Bureau,Wuning 332300;Jiangxi Institute of Meteorological Sciences,Nanchang 330046;Yingtan Meteorological Bureau,Yingtan 333000)
出处
《气象水文海洋仪器》
2023年第3期24-27,共4页
Meteorological,Hydrological and Marine Instruments
基金
中国科学院战略性先导科技专项(A类-XDA19040202)
国家自然科学基金项目(41975001)资助。
关键词
大暴雨
雷达拼图
风暴跟踪信息
预报服务复盘
heavy rain
radar puzzle
storm tracking information
forecast service resumption
