文章摘要
热带气旋闪电活动特征研究综述
An overview on the research of lightning activity in tropical cyclones
投稿时间:2021-07-05  修订日期:2021-08-05
DOI:
中文关键词: 闪电  热带气旋  台风  眼壁  闪电爆发
英文关键词: lightning  tropical cyclone  typhoon  eyewall  lightning outbreak
基金项目:国家重点研发计划项目(2019YFC1510103);中国气象科学研究院基本科研业务费重点项目(2020Z009)。
作者单位邮编
张文娟 中国气象科学研究院灾害天气国家重点实验室 100081
张义军 复旦大学大气与海洋科学系/大气科学研究院 200438
郑栋 中国气象科学研究院灾害天气国家重点实验室 100081
吕伟涛 中国气象科学研究院灾害天气国家重点实验室 100081
徐良韬 中国气象科学研究院灾害天气国家重点实验室 100081
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中文摘要:
   本文针对TC闪电已有研究,首先从闪电活动分布特征、眼壁闪电爆发对TC强度和路径的指示、外雨带闪电活动与雨带对流结构关系三个方面进行了总结;其次从动力-微物理方面对TC闪电的形成原因和特征机理进行了梳理;最后提出当前研究中存在的两个关键问题,并对后续研究内容进行了展望。基于地基和空基相结合的综合闪电探测得到的闪电属性特征参量,有望建立一个更加明确、具有代表性的闪电活动—台风强度变化关系。利用沿海地区架设的三维闪电定位系统结合地基双偏振雷达,针对登陆台风强对流过程开展的综合观测研究,将有助于推进闪电观测资料在台风中小尺度强对流监测、预警和资料同化中的应用。
英文摘要:
   Based on previous studies on TC lightning, this paper firstly summarizes the characteristics of TC lightning distribution, the indications of eyewall lightning outbreak on TC intensity and path, and the relationship between lightning activity and convective structure in the outer rainbands. Secondly, the formation and mechanism of TC lightning are analyzed from the perspective of dynamic and macrophysics. Finally, two key factors that affect the application of lightning data are discussed and the future research contents are prospected. Using the parameters of lightning characteristic (e.g. flash type, area, duration, radiation) obtained by both ground-based and space-based lightning detection system, a more clear and representative relationship between lightning activity and typhoon intensity change will be established. The three-dimensional lightning locating system set up in coastal areas combined with ground-based dual-polarization radar can be used to carry out comprehensive observation and research on landing typhoons. This will promote the application of lightning data in the monitoring, early warning and data assimilation of convective activity in typhoons.
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