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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP8W/3498PHL
Repositorysid.inpe.br/mtc-m18@80/2008/11.20.18.57   (restricted access)
Last Update2009:06.25.16.42.05 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m18@80/2008/11.20.18.57.31
Metadata Last Update2018:06.04.03.56.01 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.1016/j.atmosres.2008.06.009
ISSN0169-8095
Citation KeyFariasPintNaccPint:2009:AnLiAc
TitleAnomalous lightning activity over the Metropolitan Region of São Paulo due to urban effects
Year2009
MonthFeb.
Access Date2024, Apr. 27
Secondary TypePRE PI
Number of Files2
Size1343 KiB
2. Context
Author1 Farias, Wendell Rondinelli Gomes
2 Pinto Júnior, Osmar
3 Naccarato, Kleber Pinheiro
4 Pinto, lara Regina Cardoso de Almeida
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
Number2/4
Pages485-490
History (UTC)2009-06-26 13:55:08 :: simone -> administrator ::
2010-05-11 01:08:08 :: administrator -> simone ::
2011-05-20 05:25:32 :: simone -> administrator :: 2009
2018-06-04 03:56:01 :: administrator -> marciana :: 2009
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
KeywordsLightning activity
Urban effect
Aerosol
Thermodynamics
AbstractA significant enhancement in the number of negative cloud-to-ground (CG) lightning and a decrease in the percentage of positive CG flashes are observed over the city of São Paulo, similar to observations in other large urban areas. Strong evidence indicates that this anomalous behavior results from several mechanisms related to the urban effect. In this paper, we investigated the importance of the air pollution using CG lightning data provided by the Brazilian lightning detection network (BrasilDAT) for a 6-year period (19992004). Due to the large variations in the CG lightning activity in response to different meteorological processes, it is not an easy task to infer the contribution of air pollution to the enhancement in the lightning activity. In order to overcome such difficulty, two approaches were considered: (1) the weekly variation of the number of days with lightning in comparison to the mean concentration of particulate matter (PM10), as well as other thermodynamical parameters; (2) the variation of the number of CG flashes and the maximum storm flash rate per individual thunderstorm for different levels of pollution. The results of both analyses suggest that: first, the enhancement in the CG lightning activity during the week days over São Paulo metropolitan region is related to the PM10 concentration (pollution); second, the PM10 concentration tends to increase the lifetime of the storms and, in consequence, the number of flashes per storm, and not the flash rate of the thunderstorm; and third, the effect of the pollution in the enhancement of the CG lightning activity is probably less significant compared to the effect of the urban heat island.
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Anomalous lightning activity...
doc Directory Contentaccess
source Directory Contentthere are no files
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4. Conditions of access and use
Languageen
User Groupadministrator
simone
Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
5. Allied materials
Next Higher Units8JMKD3MGPCW/3EU29DP
DisseminationWEBSCI; PORTALCAPES; MGA; COMPENDEX.
Host Collectionsid.inpe.br/mtc-m18@80/2008/03.17.15.17
6. Notes
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7. Description control
e-Mail (login)marciana
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