First Measurements of Low-Medium Frequency Magnetic Radiation for an Altitude-Triggered Lightning Flash
文献类型：期刊论文
| 作者 | Fan, Yanfeng1; Zhang, Yang1; Lu, Gaopeng2,3,4; Lyu, Weitao1; Liu, Hengyi1; Xu, Liangtao1; Zheng, Dong1 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2022-09-28 |
| 卷号 | 49 |
| 关键词 | altitude-triggered lightning upward positive leader downward negative leader bidirectional leader propagation low-medium frequency magnetic field |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2022GL098867 |
| 通讯作者 | Zhang, Yang(zhangyang@cma.gov.cn) |
| 英文摘要 | An altitude-triggered lightning flash was conducted on the Field Experiment Base on Lightning Sciences, China Meteorological Administration, in the summer of 2021. The low-medium frequency magnetic field (B-field) of altitude-triggered lightning was measured for the first time with a sensitive magnetic sensor. The B-field waveforms of precursors and sustained upward positive leader (UPL) show the obvious damped-oscillatory waveform, which is caused by propagation losses and reflections of lightning current at both extremities of steel wire. The propagation of UPL during the inception of attempted downward negative leader (DNL) is revealed by B-field signals with microsecond resolution, showing that the bidirectional leaders develop in an uncoordinated manner. The sustained DNL occurs about 5.5 ms after the inception of sustained UPL in our observations, and the measurements indicate that the stepping of DNL was much more frequent than that of UPL during the stage of sustained propagation. |
| WOS关键词 | CURRENT PULSES ; INITIAL-STAGE ; FLORIDA ; LEADER |
| 资助项目 | National Key Research and Development Program of China[2019YFC1510103] ; National Key Research and Development Program of China[2017YFC1501501] ; National Natural Science Foundation of China[41905004] ; National Natural Science Foundation of China[41775009] ; National Natural Science Foundation of China[41875006] ; National Natural Science Foundation of China[U1938115] ; Basic Research Fund of Chinese Academy of Meteorological Sciences[2021Z011] ; Science and Technology Foundation of Guizhou Province[ZK[2022]245] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000856038800001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Basic Research Fund of Chinese Academy of Meteorological Sciences ; Science and Technology Foundation of Guizhou Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128962]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Yang |
| 作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, HFIPS, Key Lab Atmospher Opt, Hefei, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Peoples R China 4.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Yanfeng,Zhang, Yang,Lu, Gaopeng,et al. First Measurements of Low-Medium Frequency Magnetic Radiation for an Altitude-Triggered Lightning Flash[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49. |
| APA | Fan, Yanfeng.,Zhang, Yang.,Lu, Gaopeng.,Lyu, Weitao.,Liu, Hengyi.,...&Zheng, Dong.(2022).First Measurements of Low-Medium Frequency Magnetic Radiation for an Altitude-Triggered Lightning Flash.GEOPHYSICAL RESEARCH LETTERS,49. |
| MLA | Fan, Yanfeng,et al."First Measurements of Low-Medium Frequency Magnetic Radiation for an Altitude-Triggered Lightning Flash".GEOPHYSICAL RESEARCH LETTERS 49(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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