Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL079576 |
Observations of Red Sprites Above Hurricane Matthew | |
Huang, Anjing1,2; Lu, Gaopeng1,3,4; Yue, Jia5; Lyons, Walter6; Lucena, Frankie; Lyu, Fanchao7; Cummer, Steven A.7; Zhang, Wenjuan8; Xu, Liangtao; Xue, Xianghui8,9; Xu, Shuang9 | |
2018-12-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:23页码:13158-13165 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | More than three dozen red sprites were captured above Hurricane Matthew on the nights of 1 and 2 October 2016 as it passed to the north of Venezuela after undergoing rapid intensification. Analyses using broadband magnetic fields indicate that all of the sprites were produced by positive cloud-to-ground (CG) strokes located within the outer rainbands as defined by relatively cold cloud top brightness temperatures (<= 194 K). Negative CG strokes with impulse charge transfers exceeding the threshold of sprite production also existed, but the timescale of the charge transfer was not sufficiently long to develop streamers. The reported observations are contrary to the finding of the Imager of Sprites/Upper Atmospheric Lightning showing that sprites are preferentially produced by negative strokes in the same geographic region. Further ground-based observations are desired to obtain additional insights into the convective regimes associated with the dominance of negative sprites in many oceanic and coastal thunderstorms. Plain Language Summary The contribution from citizen scientists has been greatly helpful for extending the scope of basic scientific research to the broad community. Thanks for the night sky photographer living in Puerto Rico, Frankie Lucena, more than three dozen red sprites were captured on both the long-exposure DSLR camera and the low-light-level video camera, forming a very valuable data set to examine the sprite genesis above tropical cyclones. The comparison with coordinated broadband sferic measurements made at more than 2,000-km range near Duke University indicates that all of these sprites were produced by positive cloud-to-ground strokes located in the outer rainband region. None of these sprites were produced above the inner core region of the hurricane. The fact that all the sprites observed above Hurricane Matthew are positive events is contrary to the spaceborne observations of the Imager of Sprites/Upper Atmospheric Lightning (ISUAL) over the past 12 years (2004-2015) that almost all the sprites observed by ISUAL in the similar geographic region were of negative polarity. Therefore, it is worthwhile conducting the ground-based observation of sprites in this region to document the thunderstorms responsible for the population of negative sprites over oceanic thunderstorms. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000454296600057 |
WOS关键词 | ELF RADIATION ; DISCHARGES ; SIMULATION ; INITIATION ; CURRENTS ; EVENTS ; OCEANS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/25737 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China; 4.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; 5.Hampton Univ, Dept Atmospher & Planetary Sci, Hampton, VA 23668 USA; 6.FMA Res, Ft Collins, CO USA; 7.Duke Univ, Elect & Comp Engn Dept, Durham, NC USA; 8.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 9.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, Anjing,Lu, Gaopeng,Yue, Jia,et al. Observations of Red Sprites Above Hurricane Matthew[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(23):13158-13165. |
APA | Huang, Anjing.,Lu, Gaopeng.,Yue, Jia.,Lyons, Walter.,Lucena, Frankie.,...&Xu, Shuang.(2018).Observations of Red Sprites Above Hurricane Matthew.GEOPHYSICAL RESEARCH LETTERS,45(23),13158-13165. |
MLA | Huang, Anjing,et al."Observations of Red Sprites Above Hurricane Matthew".GEOPHYSICAL RESEARCH LETTERS 45.23(2018):13158-13165. |
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