Sprite beads and glows arising from the attachment instability in streamer channels

The complex dynamics of a sprite discharge are not limited to the propagation of streamers. After the passage of a streamer head, the ionized channel established in its wake develops intricate luminous patterns that evolve on timescales from 1 up to 100 ms. To investigate these patterns, conventiona...

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Detalles Bibliográficos
Autores: Luque, Alejandro, Stenbaek-Nielsen, H.C., McHarg, M.G., Haaland, R.K.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/135220
Acceso en línea:http://hdl.handle.net/10261/135220
Access Level:acceso abierto
Palabra clave:Streamers
Sprites
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spelling Sprite beads and glows arising from the attachment instability in streamer channelsLuque, AlejandroStenbaek-Nielsen, H.C.McHarg, M.G.Haaland, R.K.StreamersSpritesThe complex dynamics of a sprite discharge are not limited to the propagation of streamers. After the passage of a streamer head, the ionized channel established in its wake develops intricate luminous patterns that evolve on timescales from 1 up to 100 ms. To investigate these patterns, conventionally called beads and glows, we present high-speed recordings of their onset and decay; our main observation here is that in many cases distant points within a channel decay at the same rate despite considerable differences in the underlying air density. We then show that the properties of beads and glows, including this synchronized decay, are explained by the tendency of electric current within a streamer channel to converge to an uniform value and by an attachment instability of electric discharges in air. However, we also discuss the uncertainty about the chemical reactions that affect the electron density during the sprite decay.©2016. American Geophysical Union. All Rights Reserved.A.L. was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) under projects ESP2013-48032-C5-5-R and FIS2014-61774-EXP and by the Junta de Andalucia, Proyecto de ExcelenciaFQM-5965. H.C.S.-N, M.G.M., and R.H. have been supported by the U.S. National Science Foundation grants 1104441 and 1201683 to the University of Alaska Fairbanks and to the U.S. Air Force Academy respectivelyPeer ReviewedAmerican Geophysical UnionMinisterio de Economía y Competitividad (España)Junta de AndalucíaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2016201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/135220reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2013-48032-C5-5-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2014-61774-EXPhttp://dx.doi.org/10.1002/2015JA022234Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1352202026-05-22T06:33:51Z
dc.title.none.fl_str_mv Sprite beads and glows arising from the attachment instability in streamer channels
title Sprite beads and glows arising from the attachment instability in streamer channels
spellingShingle Sprite beads and glows arising from the attachment instability in streamer channels
Luque, Alejandro
Streamers
Sprites
title_short Sprite beads and glows arising from the attachment instability in streamer channels
title_full Sprite beads and glows arising from the attachment instability in streamer channels
title_fullStr Sprite beads and glows arising from the attachment instability in streamer channels
title_full_unstemmed Sprite beads and glows arising from the attachment instability in streamer channels
title_sort Sprite beads and glows arising from the attachment instability in streamer channels
dc.creator.none.fl_str_mv Luque, Alejandro
Stenbaek-Nielsen, H.C.
McHarg, M.G.
Haaland, R.K.
author Luque, Alejandro
author_facet Luque, Alejandro
Stenbaek-Nielsen, H.C.
McHarg, M.G.
Haaland, R.K.
author_role author
author2 Stenbaek-Nielsen, H.C.
McHarg, M.G.
Haaland, R.K.
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Junta de Andalucía
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Streamers
Sprites
topic Streamers
Sprites
description The complex dynamics of a sprite discharge are not limited to the propagation of streamers. After the passage of a streamer head, the ionized channel established in its wake develops intricate luminous patterns that evolve on timescales from 1 up to 100 ms. To investigate these patterns, conventionally called beads and glows, we present high-speed recordings of their onset and decay; our main observation here is that in many cases distant points within a channel decay at the same rate despite considerable differences in the underlying air density. We then show that the properties of beads and glows, including this synchronized decay, are explained by the tendency of electric current within a streamer channel to converge to an uniform value and by an attachment instability of electric discharges in air. However, we also discuss the uncertainty about the chemical reactions that affect the electron density during the sprite decay.©2016. American Geophysical Union. All Rights Reserved.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/135220
url http://hdl.handle.net/10261/135220
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2013-48032-C5-5-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2014-61774-EXP
http://dx.doi.org/10.1002/2015JA022234
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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