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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP8W/349C67B
Repositorysid.inpe.br/mtc-m18@80/2008/11.21.13.18   (restricted access)
Last Update2009:05.14.18.20.46 (UTC) marciana
Metadata Repositorysid.inpe.br/mtc-m18@80/2008/11.21.13.18.14
Metadata Last Update2020:09.09.17.55.45 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.1016/j.atmosres.2008.02.020
ISSN0169-8095
Labelself-archiving-INPE-MCTIC-GOV-BR
Citation KeyCamposSabaPintBall:2009:WaCoCu
TitleWaveshapes of continuing currents and properties of M-components in natural positive cloud-to-ground lightning
Year2009
Access Date2024, Apr. 28
Secondary TypePRE PI
Number of Files1
Size645 KiB
2. Context
Author1 Campos, Leandro Zanella de Souza
2 Saba, Marcelo Magalhães Fares
3 Pinto Júnior, Osmar
4 Ballarotti, Maurício Grade
Group1 DGE-CEA-INPE-MCT-BR
2 DGE-CEA-INPE-MCT-BR
3 DGE-CEA-INPE-MCT-BR
4 DGE-CEA-INPE-MCT-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalAtmospheric Research
Volume91
Pages416-424
Secondary MarkB1_ENGENHARIAS_II A2_GEOCIÊNCIAS A1_INTERDISCIPLINAR
History (UTC)2010-03-11 16:45:23 :: simone -> administrator ::
2018-06-04 03:56:02 :: administrator -> marciana :: 2009
2020-09-09 10:56:09 :: marciana -> administrator :: 2009
2020-09-09 17:55:45 :: administrator -> simone :: 2009
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsContinuing current waveshapes
M-components
Positive lightning
High-speed video
AbstractThis work analyses the waveshapes of continuing currents and parameters of M-components in positive cloud-to-ground (CG) flashes through high-speed GPS synchronized videos. The dataset is composed of only long continuing currents (with duration longer than 40 ms) and was selected from more than 800 flashes recorded in São José dos Campos (45.864°W, 23.215°S) and Uruguaiana (29.806°W, 57.005°S) in Southeast and South of Brazil, respectively, during 2003 to 2007 summers. The videos are compared with data obtained by the Brazilian Lightning Location System (BrasilDAT) in order to determine the polarity of each flash and select only positive cases. There are only two studies of waveshapes of continuing currents in the literature. One is based on direct current measurements of triggered lightning, in which four different types of waveshapes were observed; and the other is based on measurements of luminosity variations in high-speed videos of CG negative lightning, in which besides the four types above mentioned two additional types were observed. The present work is an extension of the latter, using the same method but now applied to obtain the waveshapes of positive CG lightning. As far as the authors know, this is the first report on M-components in positive continuing currents. We also have used the luminosity-versus-time graphs to observe their occurrence and measure some parameters (duration, elapsed time and time between two successive M-components), whose statistics are presented and compared in detail to the data for negative flashes. We have plotted a histogram of the M-components elapsed time over the total duration of the continuing current for positive flashes, which presented an exponential decay (correlation coefficient: 0.83), similar to what has been observed for negative flashes.
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Waveshapes of continuing...
doc Directory Contentaccess
source Directory Contentthere are no files
agreement Directory Contentthere are no files
4. Conditions of access and use
Languageen
Target FileAtmosph.Research.pdf
User Groupadministrator
simone
Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/3EU29DP
DisseminationWEBSCI; PORTALCAPES.
Host Collectionsid.inpe.br/mtc-m18@80/2008/03.17.15.17
6. Notes
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