Low Frequency Magnetic Field Observations of Natural Positive Leaders Featuring Stepwise Propagation
文献类型：期刊论文
| 作者 | Wang, Ziyi8; Lu, Gaopeng6,7,8; Li, Xiao8; Zhang, Hongbo5; Fan, Yanfeng4; Ren, Huan8; Zhang, Chenxiao8; Jiang, Rubin3,5; Qie, Xiushu3,5,7; Cohen, Morris B.2 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2023-10-28 |
| 卷号 | 50 |
| ISSN号 | 0094-8276 |
| 关键词 | positive lightning leader low-frequency (LF) magnetic pulses stepwise propagation |
| DOI | 10.1029/2023GL105540 |
| 通讯作者 | Lu, Gaopeng(gaopenglu@gmail.com) |
| 英文摘要 | We examine the low-frequency (LF) magnetic pulses recorded for the positive leader in two natural lightning flashes as recorded on the high-speed video camera. The captured positive leader in both cases propagated in a stepwise manner at least over several milliseconds according to the concurrent sequence of LF magnetic pulses. By comparing with previous studies on positive leaders under different situations, the average inter-pulse intervals (11.7 and 20.3 mu s, respectively) obtained for our natural cases are shorter than that of upward positive leaders in rocket-triggered (typically >25 mu s) and tower-initiated lightning (62 mu s in one case). Hence, the stepwise propagation of positive leaders in natural lightning is likely more frequent than that in object-induced lightning, reflecting a possible influence of ambient electric field and other meteorological factors on the stepwise feature of positive leader. The stepwise extension might be common for positive leaders developing in various scenarios. |
| WOS关键词 | CURRENT PULSES |
| 资助项目 | This work is supported by National Key Ramp;D Program of China (2017YFC1501501), the CAS Project of Stable Support for Youth Team in Basic Research Field (YSRR-018), National Natural Science Foundation of China (41875006 and U1938115), the Chinese Meridia[2017YFC1501501] ; National Key Ramp;D Program of China[YSRR-018] ; CAS Project of Stable Support for Youth Team in Basic Research Field[41875006] ; CAS Project of Stable Support for Youth Team in Basic Research Field[U1938115] ; National Natural Science Foundation of China ; Chinese Meridian Project[183311KYSB20200003] ; International Partnership Program of Chinese Academy of Sciences |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001085005300001 |
| 资助机构 | This work is supported by National Key Ramp;D Program of China (2017YFC1501501), the CAS Project of Stable Support for Youth Team in Basic Research Field (YSRR-018), National Natural Science Foundation of China (41875006 and U1938115), the Chinese Meridia ; National Key Ramp;D Program of China ; CAS Project of Stable Support for Youth Team in Basic Research Field ; National Natural Science Foundation of China ; Chinese Meridian Project ; International Partnership Program of Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/133339]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Lu, Gaopeng |
| 作者单位 | 1.World Meteorol Org, Marine Serv Div, Serv Dept, Geneva, Switzerland 2.Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA USA 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Observ, Beijing, Peoples R China 6.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, HFIPS, Hefei, Peoples R China 7.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteorol, Nanjing, Peoples R China 8.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ziyi,Lu, Gaopeng,Li, Xiao,et al. Low Frequency Magnetic Field Observations of Natural Positive Leaders Featuring Stepwise Propagation[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50. |
| APA | Wang, Ziyi.,Lu, Gaopeng.,Li, Xiao.,Zhang, Hongbo.,Fan, Yanfeng.,...&Wang, Zhichao.(2023).Low Frequency Magnetic Field Observations of Natural Positive Leaders Featuring Stepwise Propagation.GEOPHYSICAL RESEARCH LETTERS,50. |
| MLA | Wang, Ziyi,et al."Low Frequency Magnetic Field Observations of Natural Positive Leaders Featuring Stepwise Propagation".GEOPHYSICAL RESEARCH LETTERS 50(2023). |
入库方式： OAI收割
来源：合肥物质科学研究院
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