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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34T/44UH43E
Repositóriosid.inpe.br/mtc-m21d/2021/06.28.13.50   (acesso restrito)
Última Atualização2021:06.28.13.50.13 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21d/2021/06.28.13.50.13
Última Atualização dos Metadados2022:04.03.22.27.24 (UTC) administrator
DOI10.5194/nhess-21-1909-2021
ISSN1684-9981
Chave de CitaçãoPoelmanSPHSHSVMSW:2021:GlGrSt
TítuloGlobal ground strike point characteristics in negative downward lightning flashes-Part 1: Observations
Ano2021
MêsJune
Data de Acesso06 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho501 KiB
2. Contextualização
Autor 1 Poelman, Dieter R.
 2 Schulz, Wolfgang
 3 Pedeboy, Stephanie
 4 Hill, Dustin
 5 Saba, Marcelo Magalhães Fares
 6 Hunt, Hugh
 7 Schwalt, Lukas
 8 Vergeiner, Christian
 9 Mata, Carlos T.
10 Schumann, Carina
11 Warner, Tom
Identificador de Curriculo 1
 2
 3
 4
 5 8JMKD3MGP5W/3C9JHP6
Grupo 1
 2
 3
 4
 5 DISSM-CGCT-INPE-MCTI-GOV-BR
Afiliação 1 Royal Meteorological Institute of Belgium
 2 Austrian Lightning Detection and Information System (ALDIS)
 3 Météorage
 4 Scientific Lightning Solutions LLC (SLS)
 5 Instituto Nacional de Pesquisas Espaciais (INPE)
 6 University of Witwatersrand
 7 Graz University of Technology
 8 Graz University of Technology
 9 Scientific Lightning Solutions LLC (SLS)
10 University of Witwatersrand
11 ZT Research
Endereço de e-Mail do Autor 1 dieter.poelman@meteo.be
 2 w.schulz@ove.at
 3
 4
 5 marcelosaba@gmail.com
RevistaNatural Hazards and Earth System Sciences
Volume21
Número6
Páginas1909-1919
Nota SecundáriaA2_GEOGRAFIA A2_GEOCIÊNCIAS B2_ENGENHARIAS_III
Histórico (UTC)2021-07-02 17:59:03 :: simone -> administrator :: 2021
2022-04-03 22:27:24 :: administrator -> simone :: 2021
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
ResumoInformation about lightning properties is important in order to advance the current understanding of lightning, whereby the characteristics of ground strike points (GSPs) are in particular helpful to improving the risk estimation for lightning protection. Lightning properties of a total of 1174 negative downward lightning flashes are analyzed. The high-speed video recordings are taken in different regions, including Austria, Brazil, South Africa and the USA, and are analyzed in terms of flash multiplicity, duration, interstroke intervals and ground strike point properties. According to our knowledge this is the first simultaneous analysis of GSP properties in different regions of the world applying a common methodology. Although the results vary among the data sets, the analysis reveals that a third of the flashes are single-stroke events, while the overall mean number of strokes per flash equals 3.67. From the video imagery an average of 1.56 GSPs per flash is derived, with about 60% of the multiple-stroke flashes striking the ground in more than one place. It follows that a ground contact point is struck 2.35 times on average. Multiple-stroke flashes last on average 371ms, whereas the geometric mean (GM) interstroke interval value preceding strokes producing a new GSP is about 18% greater than the GM value preceding subsequent strokes following a pre-existing lightning channel. In addition, a positive correlation between the duration and multiplicity of the flash is presented. The characteristics of the subset of flashes exhibiting multiple GSPs is further examined. It follows that strokes with a stroke order of 2 create a new GSP in 60% of the cases, while this percentage quickly drops for higher-order strokes. Further, the possibility of forming a new lightning channel to ground in terms of the number of strokes that conditioned the previous lightning channel shows that approximately 88% developed after the occurrence of only one stroke. Investigating the time intervals in the other 12% of the cases when two or more strokes re-used the previous lightning channel showed that the average interstroke time interval preceding a new lightning channel is found to be more than twice the time difference between strokes that follow the previous lightning channel.
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvopoelman_global1.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
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Visibilidadeshown
Permissão de Leituradeny from all and allow from 150.163
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5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/46KUATE
Lista de Itens Citandosid.inpe.br/mtc-m21/2012/07.13.14.54.40 1
DivulgaçãoWEBSCI; PORTALCAPES; SCOPUS.
Acervo Hospedeirourlib.net/www/2021/06.04.03.40
6. Notas
Campos Vaziosalternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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