ELF/VLF signatures of sprite-producing lightning discharges observed during the 2005 EuroSprite campaign

Greenberg, Eran; Price, Colin; Yair, Yoav; Haldoupis, C.; Chanrion, Olivier; Neubert, Torsten

doi:10.1016/j.jastp.2009.05.005

Cited by 16 publications

(14 citation statements)

References 44 publications

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“…This is in accordance with the study of 15 sprites over Southern Europe during the 2005 EuroSprite campaign (Greenberg et al, 2009). A contrary result was reported by Price et al (2002), who detected ELF transients for all 31 sprites over the High Plains, USA.…”

Section: Resultssupporting

confidence: 89%

“…This finding supports the results reported by Greenberg et al (2009) while it seems to be different from the results of Price et al (2002). Further investigations should reveal a possible difference between parameters of the American and the European sprite producing +CG discharges.…”

Section: Discussionsupporting

confidence: 66%

“…A contrary result was reported by Price et al (2002), who detected ELF transients for all 31 sprites over the High Plains, USA. On the other side, for a significant number of events (33%) an ELF transient was not associated with sprite occurrence, suggesting that long continuing current of tens of miliseconds, which is responsible for an ELF transient, may not be a necessary condition for sprite production (Greenberg et al, 2009). This shows that the relation between the sprite occurrence and the ELF transient is not fully understood yet and needs further investigation.…”

Section: Resultsmentioning

confidence: 94%

“…Greenberg et al (2009) studied 15 sprites and found that their causative +CGs discharges had peak current intensities from +8 to 130 kA whereas their charge moment changes (CMCs) ranged from 500 to 3500 C.km.…”

Section: Introductionmentioning

confidence: 99%

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On the relation between the red sprites and the transients in the ELF band

Ondrášková

Ševčík

Kostecký

et al. 2010

Contributions to Geophysics and Geodesy

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Under favourable conditions sprites appear above large storms. Long continuing current in tens of ms in the parent +CG stroke radiates electromagnetic energy also in the Schumann resonance (SR) band. Optical and Extremely Low Frequency (ELF) observations at the Astronomical and Geophysical Observatory (AGO) near Modra are analyzed to find these two effects associated with +CG discharges. Since April 2007 dozens of sprites have been captured by automated all-sky TV system at AGO. A majority (77%) of the optical transient events are accompanied with the transients in the SR band. No ELF counterparts are found for 23% of the captured sprites. Our observations are compared with similar observations in Sopron and Nagycenk (NCK). Example of the optical frames, the associated ELF time plot and the Fourier as well as dynamic spectrum are presented for one of the events simultaneously observed at AGO and NCK.

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Section: Resultssupporting

confidence: 89%

Section: Discussionsupporting

confidence: 66%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the relation between the red sprites and the transients in the ELF band

Ondrášková

Ševčík

Kostecký

et al. 2010

Contributions to Geophysics and Geodesy

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“…Several comments can be made regarding the effect of SP+CG strokes on the general morphology of prompt sprites. First of all, there is a tendency that larger iCMCs are more likely linked to horizontally extensive sprites, which is consistent with previous observations that the number of sprites elements is correlated to the magnitude of impulse charge transfer [ Adachi et al ., ; Greenberg et al ., ]. Among the 13 sprites with one side of the triangulated region ≥40 km, 11 events were linked to iCMCs greater than the median (+485 C km) of the 25 +CGs producing prompt sprites.…”

Section: Case Study Of Prompt Spritesmentioning

confidence: 99%

Coordinated observations of sprites and in‐cloud lightning flash structure

Cummer

et al. 2013

JGR Atmospheres

159

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[1] The temporal and spatial development of sprite-producing lightning flashes is examined with coordinated observations over an asymmetric mesoscale convective system (MCS) on 29 June 2011 near the Oklahoma Lightning Mapping Array (LMA). Sprites produced by a total of 26 lightning flashes were observed simultaneously on video from Bennett, Colorado and Hawley, Texas, enabling a triangulation of sprites in comparison with temporal development of parent lightning (in particular, negatively charged stepped leaders) in three-dimensional space. In general, prompt sprites produced within 20 ms after the causative stroke are less horizontally displaced (typically <30 km) from the ground stroke than delayed sprites, which usually occur over 40 ms after the stroke with significant lateral offsets (>30 km). However, both prompt and delayed sprites are usually centered within 30 km of the geometric center of relevant LMA sources (with affinity to negative stepped leaders) during the prior 100 ms interval. Multiple sprites appearing as dancing/jumping events associated with a single lightning flash could be produced either by distinct strokes of the flash, by a single stroke through a series of current surges superposed on an intense continuing current, or by both. Our observations imply that sprites elongated in one direction are sometimes linked to in-cloud leader structure with the same elongation, and sprites that were more symmetric were produced above the progression of multiple negative leaders. This suggests that the large-scale structure of sprites could be affected by the in-cloud geometry of positive charge removal. Based on an expanded dataset of 39 sprite-parent flashes by including more sprites recorded by one single camera over the same MCS, the altitude (above mean sea level, MSL) of positively charged cloud region tapped by sprite-producing strokes declined gradually from~10 km MSL (À35 C) to around 6 km MSL (À10 C) as the MCS evolved through the mature stage. On average, the positive charge removal by causative strokes of sprites observed on 29 June is centered at 3.6 km above the freezing level or at 7.9 km above ground level.

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Sprite-Producing Lightning-Ionosphere Coupling and Associated Low-Frequency Phenomena

Шалимов¹,

Bösinger²

2011

Dynamic Coupling Between Earth’s Atmospheric and Plasma Environments

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ELF/VLF signatures of sprite-producing lightning discharges observed during the 2005 EuroSprite campaign

Cited by 16 publications

References 44 publications

On the relation between the red sprites and the transients in the ELF band

On the relation between the red sprites and the transients in the ELF band

Coordinated observations of sprites and in‐cloud lightning flash structure

Sprite-Producing Lightning-Ionosphere Coupling and Associated Low-Frequency Phenomena

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