Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026855 |
The Evolution and Structure of Extreme Optical Lightning Flashes | |
Peterson, Michael1; Rudlosky, Scott2; Deierling, Wiebke3,4 | |
2017-12-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study documents the composition, morphology, and motion of extreme optical lightning flashes observed by the Lightning Imaging Sensor (LIS). The furthest separation of LIS events (groups) in any flash is 135 km (89 km), the flash with the largest footprint had an illuminated area of 10,604 km(2), and the most dendritic flash has 234 visible branches. The longest-duration convective LIS flash lasted 28s and is overgrouped and not physical. The longest-duration convective-to-stratiform propagating flash lasted 7.4s, while the longest-duration entirely stratiform flash lasted 4.3s. The longest series of nearly consecutive groups in time lasted 242 ms. The most radiant recorded LIS group (i.e., superbolt) is 735 times more radiant than the average group. Factors that impact these optical measures of flash morphology and evolution are discussed. While it is apparent that LIS can record the horizontal development of the lightning channel in some cases, radiative transfer within the cloud limits the flash extent and level of detail measured from orbit. These analyses nonetheless suggest that lightning imagers such as LIS and Geostationary Lightning Mapper can complement ground-based lightning locating systems for studying physical lightning phenomena across large geospatial domains. |
英文关键词 | TRMM LIS lightning GLM morphology atmospheric electricity |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419950200028 |
WOS关键词 | CLOUD |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33953 |
专题 | 气候变化 |
作者单位 | 1.Univ Maryland, Cooperat Inst Climate & Satellites, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; 2.NESDIS, STAR, CoRP, College Pk, MD USA; 3.Univ Colorado Boulder, Dept Aerosp Engn, Boulder, CO USA; 4.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Peterson, Michael,Rudlosky, Scott,Deierling, Wiebke. The Evolution and Structure of Extreme Optical Lightning Flashes[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(24). |
APA | Peterson, Michael,Rudlosky, Scott,&Deierling, Wiebke.(2017).The Evolution and Structure of Extreme Optical Lightning Flashes.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(24). |
MLA | Peterson, Michael,et al."The Evolution and Structure of Extreme Optical Lightning Flashes".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.24(2017). |
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