Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016

Detalhes bibliográficos
Autor(a) principal: Machado, Jeferson Prietsch
Data de Publicação: 2020
Outros Autores: Miranda, Gustavo Santos Barbosa [UNESP], Gozzo, Luiz Felippe [UNESP], Custódio, Maria De Souza [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/0102-7786344067
http://hdl.handle.net/11449/211397
Resumo: The weather systems that cause storms accompanied by strong winds, such as cold fronts and extratropical and subtropical cyclones, often interfere with the sea condition. As a consequence, sea levels can rise dramatically causing coastal flooding. The 2015 and 2016 years were characterized by the occurrence of the positive phase of the phenomenon El Niño - Southern Oscillation, with very strong intensity. The Southern Brazil presented greater conditions of atmospheric instability, with frequent passages of frontal systems and formation of extratropical cyclones, interfering in the sea conditions. In view of the above, this study aimed to evaluate the atmospheric conditions during rough sea events in the South and Southeast of Brazil during 2015/2016 El Niño, through information presented in the Warnings of Bad Weather, issued by the Hydrographic Center of the Brazilian Navy. Through these warnings and ERA-Interim reanalysis data, we analyzed the distributions by sea area, by month and by season of the year, as well as the analysis of synoptic fields plotted on the surface for the 12 most prominent events. As a result, the autumn and winter months recorded the highest occurrences of rough sea in both areas during the 2015/2016 El Niño. In general, four atmospheric patterns favorable to rough sea events were identified, due to the action of extratropical cyclones and the performance of post-frontal high pressure systems.
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spelling Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016Atmospheric Conditions Associated to Rough Sea Events in the South And Southeastern Coast of Brazil During 2015/2016 El NiñoEl Niñorough seaatmospheric systemsEl NiñoRessacasistemas atmosféricosThe weather systems that cause storms accompanied by strong winds, such as cold fronts and extratropical and subtropical cyclones, often interfere with the sea condition. As a consequence, sea levels can rise dramatically causing coastal flooding. The 2015 and 2016 years were characterized by the occurrence of the positive phase of the phenomenon El Niño - Southern Oscillation, with very strong intensity. The Southern Brazil presented greater conditions of atmospheric instability, with frequent passages of frontal systems and formation of extratropical cyclones, interfering in the sea conditions. In view of the above, this study aimed to evaluate the atmospheric conditions during rough sea events in the South and Southeast of Brazil during 2015/2016 El Niño, through information presented in the Warnings of Bad Weather, issued by the Hydrographic Center of the Brazilian Navy. Through these warnings and ERA-Interim reanalysis data, we analyzed the distributions by sea area, by month and by season of the year, as well as the analysis of synoptic fields plotted on the surface for the 12 most prominent events. As a result, the autumn and winter months recorded the highest occurrences of rough sea in both areas during the 2015/2016 El Niño. In general, four atmospheric patterns favorable to rough sea events were identified, due to the action of extratropical cyclones and the performance of post-frontal high pressure systems.Os sistemas meteorológicos que ocasionam tempestades acompanhadas de ventos fortes, como frentes frias e ciclones extratropicais e subtropicais, muitas vezes interferem na condição de agitação do mar. Como consequência, o nível do mar pode se elevar extraordinariamente causando inundações na costa. Os anos de 2015 e 2016 foram caracterizados pela ocorrência da fase positiva do fenômeno El Niño - Oscilação Sul, com intensidade muito forte. O Sul do Brasil apresentou maiores condições de instabilidade atmosférica, com frequentes passagens de sistemas frontais e formação de ciclones extratropicais, interferindo nas condições de mar do litoral Sul e do Sudeste do Brasil. Diante do exposto, este estudo objetivou avaliar as condições atmosféricas durante eventos de ressaca no litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016, através de informações presentes nos Avisos de Mau Tempo, emitidos pelo Centro de Hidrografia da Marinha do Brasil. Por meio desses avisos e dos dados de reanálise do ERA-Interim, foram analisadas as distribuições por área marítima, por mês e por estação do ano, bem como foi realizada a análise de campos sinóticos plotados em superfície para os 12 eventos de maior destaque. Como resultados, os meses de outono e de inverno registraram as maiores ocorrências de ressaca em ambas as áreas, durante o período do El Niño 2015/2016. De um modo geral, quatro padrões atmosféricos favoráveis aos eventos de ressaca foram identificados, em função da atuação de ciclones extratropicais e a atuação de sistemas de alta pressão pós-frontal.Instituto de Oceanografia, Universidade Federal do Rio GrandeUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Departamento de FísicaUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Centro de Meteorologia de BauruUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Departamento de FísicaUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Centro de Meteorologia de BauruSociedade Brasileira de MeteorologiaInstituto de OceanografiaUniversidade Estadual Paulista (Unesp)Machado, Jeferson PrietschMiranda, Gustavo Santos Barbosa [UNESP]Gozzo, Luiz Felippe [UNESP]Custódio, Maria De Souza [UNESP]2021-07-14T10:23:46Z2021-07-14T10:23:46Z2020-01-24info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article529-544application/pdfhttp://dx.doi.org/10.1590/0102-7786344067Revista Brasileira de Meteorologia. Sociedade Brasileira de Meteorologia, v. 34, n. 4, p. 529-544, 2020.0102-77861982-4351http://hdl.handle.net/11449/21139710.1590/0102-7786344067S0102-77862019000400529S0102-77862019000400529.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Meteorologiainfo:eu-repo/semantics/openAccess2024-01-19T06:29:07Zoai:repositorio.unesp.br:11449/211397Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:23:50.758963Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
Atmospheric Conditions Associated to Rough Sea Events in the South And Southeastern Coast of Brazil During 2015/2016 El Niño
title Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
spellingShingle Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
Machado, Jeferson Prietsch
El Niño
rough sea
atmospheric systems
El Niño
Ressaca
sistemas atmosféricos
title_short Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
title_full Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
title_fullStr Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
title_full_unstemmed Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
title_sort Condições Atmosféricas Associadas a Eventos de Ressaca no Litoral Sul e do Sudeste do Brasil durante o El Niño 2015/2016
author Machado, Jeferson Prietsch
author_facet Machado, Jeferson Prietsch
Miranda, Gustavo Santos Barbosa [UNESP]
Gozzo, Luiz Felippe [UNESP]
Custódio, Maria De Souza [UNESP]
author_role author
author2 Miranda, Gustavo Santos Barbosa [UNESP]
Gozzo, Luiz Felippe [UNESP]
Custódio, Maria De Souza [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Instituto de Oceanografia
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Machado, Jeferson Prietsch
Miranda, Gustavo Santos Barbosa [UNESP]
Gozzo, Luiz Felippe [UNESP]
Custódio, Maria De Souza [UNESP]
dc.subject.por.fl_str_mv El Niño
rough sea
atmospheric systems
El Niño
Ressaca
sistemas atmosféricos
topic El Niño
rough sea
atmospheric systems
El Niño
Ressaca
sistemas atmosféricos
description The weather systems that cause storms accompanied by strong winds, such as cold fronts and extratropical and subtropical cyclones, often interfere with the sea condition. As a consequence, sea levels can rise dramatically causing coastal flooding. The 2015 and 2016 years were characterized by the occurrence of the positive phase of the phenomenon El Niño - Southern Oscillation, with very strong intensity. The Southern Brazil presented greater conditions of atmospheric instability, with frequent passages of frontal systems and formation of extratropical cyclones, interfering in the sea conditions. In view of the above, this study aimed to evaluate the atmospheric conditions during rough sea events in the South and Southeast of Brazil during 2015/2016 El Niño, through information presented in the Warnings of Bad Weather, issued by the Hydrographic Center of the Brazilian Navy. Through these warnings and ERA-Interim reanalysis data, we analyzed the distributions by sea area, by month and by season of the year, as well as the analysis of synoptic fields plotted on the surface for the 12 most prominent events. As a result, the autumn and winter months recorded the highest occurrences of rough sea in both areas during the 2015/2016 El Niño. In general, four atmospheric patterns favorable to rough sea events were identified, due to the action of extratropical cyclones and the performance of post-frontal high pressure systems.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-24
2021-07-14T10:23:46Z
2021-07-14T10:23:46Z
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.uri.fl_str_mv http://dx.doi.org/10.1590/0102-7786344067
Revista Brasileira de Meteorologia. Sociedade Brasileira de Meteorologia, v. 34, n. 4, p. 529-544, 2020.
0102-7786
1982-4351
http://hdl.handle.net/11449/211397
10.1590/0102-7786344067
S0102-77862019000400529
S0102-77862019000400529.pdf
url http://dx.doi.org/10.1590/0102-7786344067
http://hdl.handle.net/11449/211397
identifier_str_mv Revista Brasileira de Meteorologia. Sociedade Brasileira de Meteorologia, v. 34, n. 4, p. 529-544, 2020.
0102-7786
1982-4351
10.1590/0102-7786344067
S0102-77862019000400529
S0102-77862019000400529.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileira de Meteorologia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 529-544
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Meteorologia
publisher.none.fl_str_mv Sociedade Brasileira de Meteorologia
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
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