Space-Based Observation of a Negative Sprite With an Unusual Signature of Associated Sprite Current

doi:10.1029/2020JD033686

	Space-Based Observation of a Negative Sprite With an Unusual Signature of Associated Sprite Current
	Wang, Yongping 1; Lu, Gaopeng 1,2,3; Peng, Kang-Ming 1; Ma, Ming 1; Cummer, Steven A.4; Chen, Alfred B.5; Zhu, Baoyou 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2021-02-27
卷号	126
关键词	impulse charge moment change negative sprite sprite current thunderstorm
ISSN号	2169-897X
DOI	10.1029/2020JD033686
通讯作者	Lu, Gaopeng(gaopenglu@gmail.com)
英文摘要	We report the first observation of an unusual red sprite produced by negative cloud-to-ground (CG) lightning from the Imager of Sprites and Upper Atmospheric Lightning (ISUAL) in Colombia on August 15, 2012. The impulse charge moment change for this event is approximately -520 C center dot km, barely reaching the threshold for negative sprite production. However, different from all previously reported observations, this negative sprite contains a distinct "sprite current" feature that is unambiguously identified in the very-low-frequency magnetic field recorded at the 3,387 km range in Duke Forest. There is no evidence that this feature was produced by a fast discharging process associated with the causative CG stroke. Instead, the sprite current signal corresponds well to high-altitude optical emissions associated with the charge flow in the sprite body. The charge moment change caused by the charge transfer in the sprite region was estimated to be about -460 C center dot km. We attempt to reveal the possible causes of this atypical event from the perspective of the parent thunderstorm and the local ionosphere irregularities, whereas we believe that the most possible reason remains to lie in an extraordinarily long duration (more than 5 ms) of charge transfer to ground following the return stroke.
资助项目	National Key R&D Program of China[2019YFC1510103] ; National Natural Science Foundation of China[41875006] ; National Natural Science Foundation of China[U1938115]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000624348900005
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121107]
专题	中国科学院合肥物质科学研究院
通讯作者	Lu, Gaopeng
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China 2.Chinese Acad Sci, HFIPS, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, Hefei, Anhui, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China 4.Duke Univ, Elect & Comp Engn Dept, Durham, NC USA 5.Natl Cheng Kung Univ, Dept Phys, Tainan, Taiwan
推荐引用方式 GB/T 7714	Wang, Yongping,Lu, Gaopeng,Peng, Kang-Ming,et al. Space-Based Observation of a Negative Sprite With an Unusual Signature of Associated Sprite Current[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2021,126.
APA	Wang, Yongping.,Lu, Gaopeng.,Peng, Kang-Ming.,Ma, Ming.,Cummer, Steven A..,...&Zhu, Baoyou.(2021).Space-Based Observation of a Negative Sprite With an Unusual Signature of Associated Sprite Current.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,126.
MLA	Wang, Yongping,et al."Space-Based Observation of a Negative Sprite With an Unusual Signature of Associated Sprite Current".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 126(2021).