Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function

Detalhes bibliográficos
Autor(a) principal: Silva, Cláudio Moisés Santos e
Data de Publicação: 2012
Outros Autores: Freitas, Saulo Ribeiro de, Gielow, Ralf
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/28868
https://doi.org/10.1007/s00704-011-0571-0
Resumo: In continental areas, the maximum rainfall simulated with the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS) occurs around 4 h earlier than the one observed with rain gauges. This work presents the successful implementation of a new convective trigger function (CTF) in the convective parameterization scheme used in BRAMS that corrects this misfit between model and observations. The importance of the CTF formulation on the diurnal cycle of rainfall over the Amazon Basin is reflected by the following numbers: Over Rondonia (SW Amazonia), the original version of BRAMS simulates the maximum rainfall at 1400 UTC (1000 LST), with the new CTF maximum shifting to 1800 UTC (1400 LST), while the S-band radar rainfall maximum is at 1900 UTC (1500 LST). This is attributed to two factors: (1) the new CTF is now coupled to the sensible and latent heat fluxes at surface; (2) during the early morning, the convective available potential energy is reduced.
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spelling Silva, Cláudio Moisés Santos eFreitas, Saulo Ribeiro deGielow, Ralf2020-04-30T21:56:46Z2020-04-30T21:56:46Z2012-02-07SILVA, Cláudio Moisés Santos e; FREITAS, Saulo Ribeiro de; GIELOW, Ralf. Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function: the role of convective trigger function. Theoretical And Applied Climatology, [s. l.], v. 109, p. 473-483, fev. 2012. ISSN 1434-4483 versão online. DOI https://doi.org/10.1007/s00704-011-0571-0. Disponível em: https://link.springer.com/article/10.1007%2Fs00704-011-0571-0. Acesso em: 30 abr. 2020.0177-798X (print), 1434-4483 (online)https://repositorio.ufrn.br/jspui/handle/123456789/28868https://doi.org/10.1007/s00704-011-0571-0Theoretical and Applied ClimatologyLatent heat fluxDiurnal cycleTropical rainfall measure missionAmazon basinConvective available potential energyNumerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger functioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleIn continental areas, the maximum rainfall simulated with the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS) occurs around 4 h earlier than the one observed with rain gauges. This work presents the successful implementation of a new convective trigger function (CTF) in the convective parameterization scheme used in BRAMS that corrects this misfit between model and observations. The importance of the CTF formulation on the diurnal cycle of rainfall over the Amazon Basin is reflected by the following numbers: Over Rondonia (SW Amazonia), the original version of BRAMS simulates the maximum rainfall at 1400 UTC (1000 LST), with the new CTF maximum shifting to 1800 UTC (1400 LST), while the S-band radar rainfall maximum is at 1900 UTC (1500 LST). This is attributed to two factors: (1) the new CTF is now coupled to the sensible and latent heat fluxes at surface; (2) during the early morning, the convective available potential energy is reduced.engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/28868/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52ORIGINALNumericalSimulationAmazonBasin_Silva_2012.pdfNumericalSimulationAmazonBasin_Silva_2012.pdfapplication/pdf756469https://repositorio.ufrn.br/bitstream/123456789/28868/1/NumericalSimulationAmazonBasin_Silva_2012.pdfa9bbde97582093bde63e0b62784812ffMD51TEXTNumericalSimulationAmazonBasin_Silva_2012.pdf.txtNumericalSimulationAmazonBasin_Silva_2012.pdf.txtExtracted texttext/plain37691https://repositorio.ufrn.br/bitstream/123456789/28868/3/NumericalSimulationAmazonBasin_Silva_2012.pdf.txt90e5537200cdceb9e4aa51cc69388229MD53THUMBNAILNumericalSimulationAmazonBasin_Silva_2012.pdf.jpgNumericalSimulationAmazonBasin_Silva_2012.pdf.jpgGenerated Thumbnailimage/jpeg1753https://repositorio.ufrn.br/bitstream/123456789/28868/4/NumericalSimulationAmazonBasin_Silva_2012.pdf.jpg51b5a0a36e103a73ab376a576f042de0MD54123456789/288682020-05-04 23:39:08.944oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-05-05T02:39:08Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
title Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
spellingShingle Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
Silva, Cláudio Moisés Santos e
Latent heat flux
Diurnal cycle
Tropical rainfall measure mission
Amazon basin
Convective available potential energy
title_short Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
title_full Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
title_fullStr Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
title_full_unstemmed Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
title_sort Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
author Silva, Cláudio Moisés Santos e
author_facet Silva, Cláudio Moisés Santos e
Freitas, Saulo Ribeiro de
Gielow, Ralf
author_role author
author2 Freitas, Saulo Ribeiro de
Gielow, Ralf
author2_role author
author
dc.contributor.author.fl_str_mv Silva, Cláudio Moisés Santos e
Freitas, Saulo Ribeiro de
Gielow, Ralf
dc.subject.por.fl_str_mv Latent heat flux
Diurnal cycle
Tropical rainfall measure mission
Amazon basin
Convective available potential energy
topic Latent heat flux
Diurnal cycle
Tropical rainfall measure mission
Amazon basin
Convective available potential energy
description In continental areas, the maximum rainfall simulated with the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS) occurs around 4 h earlier than the one observed with rain gauges. This work presents the successful implementation of a new convective trigger function (CTF) in the convective parameterization scheme used in BRAMS that corrects this misfit between model and observations. The importance of the CTF formulation on the diurnal cycle of rainfall over the Amazon Basin is reflected by the following numbers: Over Rondonia (SW Amazonia), the original version of BRAMS simulates the maximum rainfall at 1400 UTC (1000 LST), with the new CTF maximum shifting to 1800 UTC (1400 LST), while the S-band radar rainfall maximum is at 1900 UTC (1500 LST). This is attributed to two factors: (1) the new CTF is now coupled to the sensible and latent heat fluxes at surface; (2) during the early morning, the convective available potential energy is reduced.
publishDate 2012
dc.date.issued.fl_str_mv 2012-02-07
dc.date.accessioned.fl_str_mv 2020-04-30T21:56:46Z
dc.date.available.fl_str_mv 2020-04-30T21:56:46Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv SILVA, Cláudio Moisés Santos e; FREITAS, Saulo Ribeiro de; GIELOW, Ralf. Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function: the role of convective trigger function. Theoretical And Applied Climatology, [s. l.], v. 109, p. 473-483, fev. 2012. ISSN 1434-4483 versão online. DOI https://doi.org/10.1007/s00704-011-0571-0. Disponível em: https://link.springer.com/article/10.1007%2Fs00704-011-0571-0. Acesso em: 30 abr. 2020.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/28868
dc.identifier.issn.none.fl_str_mv 0177-798X (print), 1434-4483 (online)
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1007/s00704-011-0571-0
identifier_str_mv SILVA, Cláudio Moisés Santos e; FREITAS, Saulo Ribeiro de; GIELOW, Ralf. Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function: the role of convective trigger function. Theoretical And Applied Climatology, [s. l.], v. 109, p. 473-483, fev. 2012. ISSN 1434-4483 versão online. DOI https://doi.org/10.1007/s00704-011-0571-0. Disponível em: https://link.springer.com/article/10.1007%2Fs00704-011-0571-0. Acesso em: 30 abr. 2020.
0177-798X (print), 1434-4483 (online)
url https://repositorio.ufrn.br/jspui/handle/123456789/28868
https://doi.org/10.1007/s00704-011-0571-0
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language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Theoretical and Applied Climatology
publisher.none.fl_str_mv Theoretical and Applied Climatology
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