热带气象学报2025，Vol.41Issue(2)：245-259,15.DOI:10.16032/j.issn.1004-4965.2025.023
基于多资料的超强台风"彩虹"(2015)闪电活动与雷达回波特征分析
Analysis of Lightning Activity and Radar Echo Characteristics of Super Typhoon Mujigae(2015)Based on Multi-Source Data
摘要
Abstract
Utilizing data from the Earth Networks Total Lightning System(ENTLS),typhoon data from the CMA Tropical Cyclone Best Track Dataset,and GPM/DPR satellite data,this study analyzed lightning activity and radar echo characteristics throughout the lifecycle of Super Typhoon Mujigae.The findings indicate that:(1)During its intensification,the typhoon exhibited a distinct triple-ring structure,with a dense lightning zone in the inner core(0-80 km),sparse lightning activity in the inner rainband(80-160 km),and significantly increased lightning activity in the outer rainband extending beyond 160 km.(2)Temporal changes in the radial distribution reveal asynchronous inner core and outer rainband lightning activity.A surge in inner core lightning activity occurred one hour before the typhoon reached its peak wind speed.This surge peaked in terms of lightning density within a 320 km radius at 15:00 on October 2,2015,during the genesis process.(3)Changes in intensity-related radial distribution show that inner core lightning primarily occurred in super typhoons,inner rainband lightning was evident only in tropical storms and strong tropical storms.Outer rainband lightning activity was showed different active regions of varying intensities.Moreover,as TC intensity increased,the outer rainband lightning activity expanded radially outward,and the area of lightning activity shrinks radial inward to 160-400 km range when the TC intensity decreases.(4)The relationship between lightning activity and radar echo parameters reveals that a zero-degree layer height exceeding 5 km was a prerequisite for the lightning of Typhoon Mujigae,and a cloud top height of at least 10 km was necessary for the upward transport of ice-water mixtures.The presence of supercooled water or large ice crystals in the mixed-phase layer was found to be conducive to lightning occurrence.关键词
超强台风/彩虹/闪电活动/ENTLS/GPM/DPRKey words
super typhoon/Mujigae/lightning/ENTLS/GPM/DPR分类
大气科学引用本文复制引用
杨玉婷,余乐福,刘超,陈逸伦,刘天澳..基于多资料的超强台风"彩虹"(2015)闪电活动与雷达回波特征分析[J].热带气象学报,2025,41(2):245-259,15.基金项目
国家重点研发计划项目(2022YFF0802000) （2022YFF0802000）
国家自然科学基金项目(42105068、42075004) （42105068、42075004）
广东省基础与应用基础研究基金项目(2024A1515011006) （2024A1515011006）
广东省气象局科学技术研究项目(GRMC2020Q12)共同资助 （GRMC2020Q12）
