Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic

Detalhes bibliográficos
Autor(a) principal: Lentini, Carlos Alessandre Domingos
Data de Publicação: 2012
Outros Autores: Kouadio, Yves K., Servain, Jacques, Machado, Luiz A. T.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/16558
Resumo: P. 1-16
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spelling Lentini, Carlos Alessandre DomingosKouadio, Yves K.Servain, JacquesMachado, Luiz A. T.2014-11-11T18:01:26Z2014-11-11T18:01:26Z20121687-9309http://repositorio.ufba.br/ri/handle/ri/16558P. 1-16Relationships between simultaneous occurrences of distinctive atmospheric easterly wave (EW) signatures that cross the south-equatorial Atlantic, intense mesoscale convective systems (lifespan > 2 hour) that propagate westward over the western south-equatorial Atlantic, and subsequent strong rainfall episodes (anomaly > 10 mm·day−1) that occur in eastern Northeast Brazil (ENEB) are investigated. Using a simple diagnostic analysis, twelve cases with EW lifespan ranging between 3 and 8 days and a mean velocity of 8 m·s−1 were selected and documented during each rainy season of 2004, 2005, and 2006. These cases, which represent 50% of the total number of strong rainfall episodes and 60% of the rainfall amount over the ENEB, were concomitant with an acceleration of the trade winds over the south-equatorial Atlantic, an excess of moisture transported westward from Africa to America, and a strengthening of the convective activity in the oceanic region close to Brazil. Most of these episodes occurred during positive sea surface temperature anomaly patterns over the entire south-equatorial Atlantic and low-frequency warm conditions within the oceanic mixing layer. A real-time monitoring and the simulation of this ocean-atmosphere relationship could help in forecasting such dramatic rainfall events.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-05-06T14:25:06Z No. of bitstreams: 1 Carlos A. D. Lentini.pdf: 5650487 bytes, checksum: 7d25b8319e4f007788d3de38ef4477f9 (MD5)Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-11-11T18:01:26Z (GMT) No. of bitstreams: 1 Carlos A. D. Lentini.pdf: 5650487 bytes, checksum: 7d25b8319e4f007788d3de38ef4477f9 (MD5)Made available in DSpace on 2014-11-11T18:01:26Z (GMT). No. of bitstreams: 1 Carlos A. D. Lentini.pdf: 5650487 bytes, checksum: 7d25b8319e4f007788d3de38ef4477f9 (MD5) Previous issue date: 2012http://dx.doi.org/10.1155/2012/369567reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAHeavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical AtlanticAdvances in Meteorologyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALCarlos A. D. Lentini.pdfCarlos A. D. 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dc.title.pt_BR.fl_str_mv Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
dc.title.alternative.pt_BR.fl_str_mv Advances in Meteorology
title Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
spellingShingle Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
Lentini, Carlos Alessandre Domingos
title_short Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
title_full Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
title_fullStr Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
title_full_unstemmed Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
title_sort Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
author Lentini, Carlos Alessandre Domingos
author_facet Lentini, Carlos Alessandre Domingos
Kouadio, Yves K.
Servain, Jacques
Machado, Luiz A. T.
author_role author
author2 Kouadio, Yves K.
Servain, Jacques
Machado, Luiz A. T.
author2_role author
author
author
dc.contributor.author.fl_str_mv Lentini, Carlos Alessandre Domingos
Kouadio, Yves K.
Servain, Jacques
Machado, Luiz A. T.
description P. 1-16
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2014-11-11T18:01:26Z
dc.date.available.fl_str_mv 2014-11-11T18:01:26Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.issn.none.fl_str_mv 1687-9309
identifier_str_mv 1687-9309
url http://repositorio.ufba.br/ri/handle/ri/16558
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1155/2012/369567
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