| Progression features of a stepped leader process with four grounded leader branches | |
| Qie, Xiushu; Kong, Xiangzhen | |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 2007-03-29 | |
| 卷号 | 34期号:6页码:4 |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2006GL028771 |
| 通讯作者 | Qie, Xiushu(qiex@mail.iap.ac.cn) |
| 英文摘要 | The propagation features of stepped leader with four grounded branches during a negative CG flash have been analyzed by using the data from a high-speed digital camera with 1 ms time resolution in correlation with wide-band electric field change signatures. Four branches that initiated from a main leader trunk connected to ground in sequence and induced four separate return strokes. The propagation speed of four grounded leader branches shows an increase tendency when they progressed downward to ground. The average 2-D speed of four grounded branches was estimated to be about 1.1 x 10(5) m/s. The electric field changes caused by the stepped leader were characterized by clustered pulses near the time of return stroke. Each cluster of pulses was composed of 3-4 pulses with an average time interval in a cluster of about 7.7 mu s, and the time interval between two first pulses in two adjacent clusters was 30.1 mu s. |
| 收录类别 | SCI |
| WOS关键词 | ELECTRIC-FIELD ; WAVE-FORMS ; RADIATION ; MILLISECOND |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000245552600001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2556002 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qie, Xiushu |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, LAGEO, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qie, Xiushu,Kong, Xiangzhen. Progression features of a stepped leader process with four grounded leader branches[J]. GEOPHYSICAL RESEARCH LETTERS,2007,34(6):4. |
| APA | Qie, Xiushu,&Kong, Xiangzhen.(2007).Progression features of a stepped leader process with four grounded leader branches.GEOPHYSICAL RESEARCH LETTERS,34(6),4. |
| MLA | Qie, Xiushu,et al."Progression features of a stepped leader process with four grounded leader branches".GEOPHYSICAL RESEARCH LETTERS 34.6(2007):4. |
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