Projects per year
Abstract
Sprites are composed of numerous streamers which exhibit transient luminosities in the upper middle atmosphere above thunderclouds after initiation by an intense positive lightning discharge, often followed by lightning continuing current. Here we report the discovery of a sprite which exhibits its main luminosity near the stratopause. This novel phenomenon is attributed to a sudden surge of intracloud lightning leader activity, based on a rigorous analysis of our observed electromagnetic waveforms. Each lightning leader discharge causes an additional electric field that generates a small amount of electromagnetic energy near the stratopause and thereby contributes to the overall sprite luminosity morphology. The observation of sprite streamers near the stratopause is important because it is relevant for the ongoing assessment of the lightning impact on N2 and CO2 with emissions from the near to far infrared part of the spectrum.
Original language | English |
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Pages (from-to) | 12572-12579 |
Number of pages | 8 |
Journal | Geophysical Research Letters |
Volume | 46 |
Issue number | 21 |
Early online date | 16 Oct 2019 |
DOIs | |
Publication status | Published - 16 Nov 2019 |
Keywords
- atmospheric and space electricity
- lightning discharges
- transient luminous events
ASJC Scopus subject areas
- Geophysics
- General Earth and Planetary Sciences
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Dive into the research topics of 'Maximum sprite streamer luminosity near the stratopause'. Together they form a unique fingerprint.Projects
- 2 Finished
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Radio Tomography for Atmospheric Science
Fullekrug, M. (PI) & Watson, R. (CoI)
Natural Environment Research Council
30/04/14 → 29/04/15
Project: Research council
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Relativistic Electron Beams Above Thunderclouds
Fullekrug, M. (PI)
Natural Environment Research Council
10/01/11 → 9/01/14
Project: Research council
Datasets
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Data for the publication 'Maximum sprite streamer luminosity near the stratopause'
Fullekrug, M. (Creator), University of Bath, 28 Oct 2019
DOI: 10.15125/BATH-00669
Dataset