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DOI | 10.1029/2018JD030060 |
Charge Regions Indicated by LMA Lightning Flashes in Hokuriku's Winter Thunderstorms | |
Zheng, Dong1; Wang, Daohong2; Zhang, Yijun3,4; Wu, Ting2; Takagi, Nobuyuki2 | |
2019-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:13页码:7179-7206 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Japan |
英文摘要 | The charge distribution of some cells in three winter thunderstorms in the Hokuriku region of Japan is investigated based on Lightning Mapping Array (LMA) flash data. The vertical arrangements of charge regions involved in lightning discharges suggest diverse charge patterns, including quad-polar, tripole, positive dipole, inverted dipole, and inverted tripole. The riming electrification between graupel and ice crystals or their aggregations are thought to be responsible for the electrification of most cells. The charging process between snow/aggregates and ice crystals may be responsible for some inverted charge structure that occurred above 0 degrees C isotherm and accompanied with weak radar echoes. Convection indicated by the vertical development of radar reflectivity appears crucial to shaping the diverse charge distribution patterns by determining which charging mechanisms occur and where; it also influences changes in height or even the disappearance of the charge regions. The charged cores are distributed from 0.7- to 5.3-km heights and 2- to -31- degrees C temperatures, while the distances between adjacent charged cores with opposite polarities change between 0.2 and 3.4 km, with a mean of 1.3 km. The mean flash duration and horizontal distance are 425.0 ms and 19.8 km, respectively. The average height, temperature, and power of flash initiations are 2.8 km, -11.9 degrees C, and 15.6 dBW, respectively. |
英文关键词 | winter thunderstorm charge structure flash size flash initiation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477580200031 |
WOS关键词 | ELECTRICAL STRUCTURE ; ELECTRIFICATION ; PRECIPITATION ; PROPAGATION ; EVOLUTION ; SIZE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185141 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Meteorol Sci, Lab Lightning Phys & Protect Engn, State Key Lab Severe Weather, Beijing, Peoples R China; 2.Gifu Univ, Dept Elect Elect & Comp Engn, Gifu, Japan; 3.Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China; 4.Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Dong,Wang, Daohong,Zhang, Yijun,et al. Charge Regions Indicated by LMA Lightning Flashes in Hokuriku's Winter Thunderstorms[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(13):7179-7206. |
APA | Zheng, Dong,Wang, Daohong,Zhang, Yijun,Wu, Ting,&Takagi, Nobuyuki.(2019).Charge Regions Indicated by LMA Lightning Flashes in Hokuriku's Winter Thunderstorms.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(13),7179-7206. |
MLA | Zheng, Dong,et al."Charge Regions Indicated by LMA Lightning Flashes in Hokuriku's Winter Thunderstorms".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.13(2019):7179-7206. |
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