| Lightning response during Forbush Decrease in the tropics and subtropics | |
| Wu, Qiong1,2; Li, Hui1,3; Wang, Chi1 | |
| Department | 空间科学部 |
| Source Publication | JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
 |
| 2019 | |
| Volume | 195Pages:105134 |
| DOI | 10.1016/j.jastp.2019.105134 |
| ISSN | 1364-6826 |
| Language | 英语 |
| Keyword | Forbush Decrease Galactic cosmic ray Lightning |
| Abstract | Galactic cosmic rays (GCRs), modulated by the heliospheric magnetic field (HMF), are speculated to provide a possible link between solar activities and the earth's lightning variation. To test this hypothesis, we investigate the correlation between the sudden decrease of GCR in a few hours to one day, known as Forbush Decrease (FD), and the lightning incidence in the tropics and subtropics. During the operating period of the TRMM Satellite, 28 FD events are identified with their decrease amplitudes (DAs) greater than 4%. For a typical FD event occurred on January 10, 2002, the daily cosmic ray (CR) intensity presents an intense decline from 5830.33 counts/min to 5675.96 counts/min in one day. Correspondingly, the daily lightning count decreases right after the FD's onset without any obvious time delay, specifically from 3474 day(-1) to 672 day(-1) in one day, and reaches its minimum of 355 day-1 another day later. Based on the superposed epoch analysis (SEA), similar statistical correlation is further confirmed. On average, the adjusted daily lightning anomaly decreases from 0.33 to -0.31 in three days after the FD's onset. The result of the Monte Carlo test indicates that such positive relevance between the CR intensity and the lightning incidence during a FD event is statistically significant. |
| Indexed By | SCI ; EI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/7257 |
| Collection | 空间科学部 |
| Affiliation | 1.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China; 2.University of Chinese Academy of Sciences, Beijing, China; 3.School of Astronomy and Space Science, University of Chinese Academy |
| Recommended Citation GB/T 7714 | Wu, Qiong,Li, Hui,Wang, Chi. Lightning response during Forbush Decrease in the tropics and subtropics[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2019,195:105134. |
| APA | Wu, Qiong,Li, Hui,&Wang, Chi.(2019).Lightning response during Forbush Decrease in the tropics and subtropics.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,195,105134. |
| MLA | Wu, Qiong,et al."Lightning response during Forbush Decrease in the tropics and subtropics".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 195(2019):105134. |
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| File Name/Size | DocType | Version | Access | License | ||
| 2019S136468261930403（1451KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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