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DOI | 10.1029/2018JD028569 |
Characteristics of Lightning Flashes Associated With the Charge Layer Near the 0 degrees C Isotherm in the Stratiform Region of Mesoscale onvective Systems | |
Wang, Fei1,2; Liu, Hengyi1,2; Dong, Wansheng1,2; Zhang, Yijun3,4; Meng, Qing1,2 | |
2018-09-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:17页码:9524-9541 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Data from an S-band Doppler radar system and a three-dimensional very high frequency (VHF) radiation source location system in Chongqing, China, were combined to analyze the characteristics of stratiform lightning flashes associated with the charge layer near the 0 degrees C isotherm (SL0s) in 10 mesoscale convective systems during the summers of 2014-2015. Most of the SL0 events occurred during the dissipating stage of two thunderstorms. The bright band was found to have a very close relationship with the initiation of the SL0 events. The noninductive and inductive charging mechanisms associated with the process of melting ice particles were inferred to contribute to the charge of the bright band area. The reflectivity at the first located VHF radiation source (FirstS) of the SL0s was always weaker than that in the reflectivity core within the lightning area. The stronger the reflectivity core, the greater the difference between the reflectivity and the reflectivity core. The SL0s generated by the thunderstorms with low SL0 frequency tended to have weaker reflectivity at the FirstS but a stronger reflectivity core in the lightning area than that of the thunderstorms with high SL0 frequency. In the storms with low SL0 frequency, SL0s occurred only when the initiation height of the stratiform lightning flashes decreased gradually toward the height range of the SL0s; but in one storm with high SL0 frequency, the SL0s were generated simultaneously with the stratiform lightning flashes initiated at a high level. It gives a clue that the melting charging mechanisms may enhance the charge density of the bright band area. |
英文关键词 | stratiform lightning flash bright band VHF radiation source reflectivity |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445617500034 |
WOS关键词 | CONVECTIVE SYSTEM ; STORM STRUCTURE ; ELECTRIC-FIELD ; MAPPING ARRAY ; SQUALL LINE ; THUNDERSTORM ELECTRIFICATION ; KINEMATIC STRUCTURE ; RADAR REFLECTIVITY ; PRECIPITATION ; MICROPHYSICS |
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/32528 |
专题 | 气候变化 |
作者单位 | 1.CAMS, State Key Lab Severe Weather, Beijing, Peoples R China; 2.CAMS, Lab Lightning Phys & Protect Engn, Beijing, Peoples R China; 3.Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China; 4.Shanghai Inst Pollut Control & Ecol Secur, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Fei,Liu, Hengyi,Dong, Wansheng,et al. Characteristics of Lightning Flashes Associated With the Charge Layer Near the 0 degrees C Isotherm in the Stratiform Region of Mesoscale onvective Systems[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(17):9524-9541. |
APA | Wang, Fei,Liu, Hengyi,Dong, Wansheng,Zhang, Yijun,&Meng, Qing.(2018).Characteristics of Lightning Flashes Associated With the Charge Layer Near the 0 degrees C Isotherm in the Stratiform Region of Mesoscale onvective Systems.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(17),9524-9541. |
MLA | Wang, Fei,et al."Characteristics of Lightning Flashes Associated With the Charge Layer Near the 0 degrees C Isotherm in the Stratiform Region of Mesoscale onvective Systems".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.17(2018):9524-9541. |
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