| 雷暴闪电活动特征研究进展 |
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| 引用本文： | 郑栋,张文娟,姚雯,徐良韬,王飞. 雷暴闪电活动特征研究进展[J]. 热带气象学报, 2021, 37(3): 289-297. DOI: 10.16032/j.issn.1004-4965.2021.027 |
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| 作者姓名： | 郑栋 张文娟 姚雯 徐良韬 王飞 |
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| 作者单位： | 中国气象科学研究院灾害天气国家重点实验室,北京100081 |
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| 基金项目： | 国家重点研发计划课题2017YFC1501503中国气象科学研究院基本科研业务费重点项目2020Z009 |
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| 摘 要： | 从一般雷暴、灾害性雷暴和台风的闪电活动特征以及雷暴闪电尺度特征四个方面对相关研究进行梳理.一般雷暴通常具有正常极性电荷结构,云/地闪比例在3左右(中纬度地区),地闪中正地闪占比为10％左右,负地闪位置往往更集中于对流区.灾害性雷暴倾向具有活跃的云闪,低比例的地闪,易出现反极性电荷结构,正地闪比例偏高.闪电活动与灾害性天...
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| 关 键 词： | 闪电 雷暴 灾害性天气 台风 |
| 收稿时间： | 2020-11-24 |
RESEARCH PROGRESS OF LIGHTNING ACTIVITY IN THUNDERSTORMS |
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| ZHENG Dong,ZHANG Wenjuan,YAO Wen,XU Liangtao,WANG Fei. RESEARCH PROGRESS OF LIGHTNING ACTIVITY IN THUNDERSTORMS[J]. Journal of Tropical Meteorology, 2021, 37(3): 289-297. DOI: 10.16032/j.issn.1004-4965.2021.027 |
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| Authors: | ZHENG Dong ZHANG Wenjuan YAO Wen XU Liangtao WANG Fei |
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| Affiliation: | State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China |
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| Abstract: | In this paper, we summarized relevant studies from four aspects, i.e., lightning activity in typical thunderstorms, severe thunderstorms, and typhoons and lightning flash size. The typical thunderstorms usually have a normal charge structure. The ratio of intracloud (IC) lightning to cloud-to-ground (CG) lightning is approximately 3 in middle latitudes, and positive CG (PCG) lightning approximately accounts for 10% of the total CG lightning. Negative CG lightning tends to occur in convective regions. Severe thunderstorms tend to have high-frequency IC flashes and low proportion of CG flashes and feature a relatively greater proportion of PCG flashes associated with the inverted charge structure. There is a correlation between lightning activity and severe weather events. Some hailstorms contain two active-lightning stages. In typhoon, lightning tends to predominantly occur in the outer rainbands. The outbreak of lightning within the eyewall and inner core is likely to indicate an increase in typhoon intensity or a change in path. There is a correlation between the intensity of thunderstorm convection and the lightning flash size represented by flash duration and channel expansion. Weak convective thunderstorms or weak convective areas of thunderstorms may be dominated by horizontally extending and vertically layered charge distribution patterns and feature low-frequency and large lightning flashes. Strong convective thunderstorms or strong convective areas of thunderstorms may be dominated by interlaced small charge regions and feature high-frequency and small lightning flashes. |
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| Keywords: | lightning thunderstorm severe weather typhoon |
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