气候变化领域集成服务门户(CCPortal): Distinguishing features of high altitude negative leaders as observed with LOFAR

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DOI	10.1016/j.atmosres.2021.105688
	Distinguishing features of high altitude negative leaders as observed with LOFAR
	Scholten O.; Hare B.M.; Dwyer J.; Liu N.; Sterpka C.; Buitink S.; Corstanje A.; Falcke H.; Huege T.; Hörandel J.R.; Krampah G.K.; Mitra P.; Mulrey K.; Nelles A.; Pandya H.; Rachen J.P.; Trinh T.N.G.; ter Veen S.; Thoudam S.; Winchen T.
发表日期	2021
ISSN	0169-8095
卷号	260
英文摘要	We present high resolution observations of negative leaders at high altitude using the LOFAR radio telescope. We show that the structure of negative leaders at high altitude (altitudes larger than 7 km) differs in several respects from that of negative leaders at lower altitudes. In particular, the High Altitude Negative Leaders (HANLs) show very distinct steps of a few hundred meters, stepping times of the order of a few milliseconds and a filamentary structure that extends outward over several hundreds of meters; as opposed to lower altitude (≲ 5 km) leaders, which have stepping times and distances around 0.01 ms and 10 m. Similar to lower altitude leaders, high altitude leaders emit copious VHF radiation from their propagating tip and have propagation velocities of the order of 105 m/s. Corona-flash like bursts can be distinguished when zooming in to meter and nanosecond scales. © 2021 The Authors
英文关键词	Corona flash; Lightning; LOFAR lightning imaging; Negative leaders; Radio emission; Thunderstorms
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236672
作者单位	University Groningen, Kapteyn Astronomical Institute, Landleven 12, Groningen, AD 9747, Netherlands; University of Groningen, KVI Center for Advanced Radiation Technology, Groningen, Netherlands; Interuniversity Institute for High-Energy, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, 1050, Belgium; Department of Physics and Space Science Center (EOS), University of New Hampshire, Durham, NH 03824, United States; Department of Astrophysics/IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands; Astrophysical Institute, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, 1050, Belgium; Nikhef, Science Park Amsterdam, Amsterdam, Netherlands; Netherlands Institute for Radio Astronomy (ASTRON), Dwingeloo, Netherlands; Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, 53121, Germany; Institute for Astroparticle Physics, Karlsruhe Institute of Technology(KIT), P.O. Box 3640, Karlsruhe, 76021, Germany; Erlangen Center for Astroparticle Physics, Friedrich-Alexander-Univeristät Erlangen-Nürn...
推荐引用方式 GB/T 7714	Scholten O.,Hare B.M.,Dwyer J.,et al. Distinguishing features of high altitude negative leaders as observed with LOFAR[J],2021,260.
APA	Scholten O..,Hare B.M..,Dwyer J..,Liu N..,Sterpka C..,...&Winchen T..(2021).Distinguishing features of high altitude negative leaders as observed with LOFAR.Atmospheric Research,260.
MLA	Scholten O.,et al."Distinguishing features of high altitude negative leaders as observed with LOFAR".Atmospheric Research 260(2021).