Observation of the First Stepping Process of Three Winter Lightning Discharges
Abstract Using three different lightning observation systems, we have observed the first stepping processes of three lightning discharges with unprecedented details. We found that each of the first stepping processes contains a clear upward fast negative breakdown (FNB) corresponding to the prelimin...
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| Format: | Article |
| Language: | English |
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Wiley
2025-02-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL111468 |
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| author | Qingliu Yang Daohong Wang Junchen Yang Ting Wu |
| author_facet | Qingliu Yang Daohong Wang Junchen Yang Ting Wu |
| author_sort | Qingliu Yang |
| collection | DOAJ |
| description | Abstract Using three different lightning observation systems, we have observed the first stepping processes of three lightning discharges with unprecedented details. We found that each of the first stepping processes contains a clear upward fast negative breakdown (FNB) corresponding to the preliminary breakdown (PB) pulse peak. Prior to the FNB from the lightning initiation, most sources are located in a fan‐shape area, and the FNB grows from this area forming a channel with a length from 45 to 120 m. During the period of about 100 microseconds immediately preceding the PB pulse, multiple 1–12 MHz radio bursts are located within or near the fan shape area. These radio bursts may indicate stem/space leaders. Eventually the FNB decayed and scattered in another fan shape area at the upper end of the channel. Based on these findings, we have proposed a complete picture of the first stepping process. |
| format | Article |
| id | doaj-art-9304041cd8634ef2b93de2508140da56 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-9304041cd8634ef2b93de2508140da562025-08-20T02:31:09ZengWileyGeophysical Research Letters0094-82761944-80072025-02-01524n/an/a10.1029/2024GL111468Observation of the First Stepping Process of Three Winter Lightning DischargesQingliu Yang0Daohong Wang1Junchen Yang2Ting Wu3Department of Electrical, Electronic and Computer Engineering Gifu University Gifu JapanDepartment of Electrical, Electronic and Computer Engineering Gifu University Gifu JapanDepartment of Electrical, Electronic and Computer Engineering Gifu University Gifu JapanDepartment of Electrical, Electronic and Computer Engineering Gifu University Gifu JapanAbstract Using three different lightning observation systems, we have observed the first stepping processes of three lightning discharges with unprecedented details. We found that each of the first stepping processes contains a clear upward fast negative breakdown (FNB) corresponding to the preliminary breakdown (PB) pulse peak. Prior to the FNB from the lightning initiation, most sources are located in a fan‐shape area, and the FNB grows from this area forming a channel with a length from 45 to 120 m. During the period of about 100 microseconds immediately preceding the PB pulse, multiple 1–12 MHz radio bursts are located within or near the fan shape area. These radio bursts may indicate stem/space leaders. Eventually the FNB decayed and scattered in another fan shape area at the upper end of the channel. Based on these findings, we have proposed a complete picture of the first stepping process.https://doi.org/10.1029/2024GL111468lightninglightning initiationlightning leader |
| spellingShingle | Qingliu Yang Daohong Wang Junchen Yang Ting Wu Observation of the First Stepping Process of Three Winter Lightning Discharges Geophysical Research Letters lightning lightning initiation lightning leader |
| title | Observation of the First Stepping Process of Three Winter Lightning Discharges |
| title_full | Observation of the First Stepping Process of Three Winter Lightning Discharges |
| title_fullStr | Observation of the First Stepping Process of Three Winter Lightning Discharges |
| title_full_unstemmed | Observation of the First Stepping Process of Three Winter Lightning Discharges |
| title_short | Observation of the First Stepping Process of Three Winter Lightning Discharges |
| title_sort | observation of the first stepping process of three winter lightning discharges |
| topic | lightning lightning initiation lightning leader |
| url | https://doi.org/10.1029/2024GL111468 |
| work_keys_str_mv | AT qingliuyang observationofthefirststeppingprocessofthreewinterlightningdischarges AT daohongwang observationofthefirststeppingprocessofthreewinterlightningdischarges AT junchenyang observationofthefirststeppingprocessofthreewinterlightningdischarges AT tingwu observationofthefirststeppingprocessofthreewinterlightningdischarges |