2022年7月28日江苏—山东一次雷暴大风天气过程分析  

作　　者：韩林雨瞳 吴荣 王璐 杨贵 

机构地区：[1]中宁县气象局,宁夏中宁755100

出　　处：《科技创新与应用》2025年第8期121-125,共5页Technology Innovation and Application

摘　　要：该文利用逐小时降水资料、地面常规观测资料、多普勒雷达基本产品及再分析资料,研究2022年7月28日江苏至山东的一次雷暴大风天气过程的环流形势及其触发机制,结果表明,处于“槽前脊后”且位于西太平洋副热带高压的附近是该次雷暴大风天气产生的主要环流形势。低空切变线、高空急流和低空急流是该次雷暴大风天气的主要影响系统。江苏至山东存在“高层辐散,低层辐合”的配置结构,与“上干冷,下暖湿”的层结相配合,且地面伴随锋面过程,为触发此次强对流的主要天气条件。雷达回波特征显示,此次雷暴天气是由多个雷暴单体造成,单体合并东移合并在成熟阶段形成弓状回波带。最终雷暴单体解体东移入海,逐渐消亡。This paper uses hourly precipitation data,routine ground observation data,basic Doppler radar products and reanalysis data to study the circulation situation and trigger mechanism of a thunderstorm and gale weather process from Jiangsu to Shandong on July 28,2022.The results show that the main circulation situation caused by the thunderstorm and gale weather is"in front of the trough and behind the ridge"and located near the Western Pacific subtropical high.Low-level shear lines,high-level jet jets and low-level jet jets are the main influencing systems of this thunderstorm and gale weather.There is a configuration structure of"high-level divergence and low-level convergence"from Jiangsu to Shandong,which is coordinated with the stratification of"dry and cold on the upper side,warm and wet on the lower side",and the ground is accompanied by frontal processes,which is the main weather condition triggering this strong convection.Radar echo characteristics show that the thunderstorm weather was caused by multiple thunderstorm cells,and the cells merged eastward and merged to form an arcuate echo belt during the mature stage.Eventually,the thunderstorm cells disintegrated and moved eastward into the sea,and gradually disappeared.

关 键 词：雷暴大风 环流形势 天气分析 雷达回波特征 环流形势 

分 类 号：P458.2[天文地球—大气科学及气象学]