INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Caminhos de Geografia |
Texto Completo: | https://seer.ufu.br/index.php/caminhosdegeografia/article/view/67458 |
Resumo: | The exceptional rainfall regime can condition economic and social losses, especially related to human supply, food production and energy generation. In order to contribute to the understanding of rainfall variability, the objective is to analyze the influences of ENSO and PDO on the variability of annual rainfall totals in Goiás and the Federal District, based on rainfall data from 40 stations of the National Water Agency (ANA, in portuguese) and the National Institute of Meteorology. (INMET, in portuguese), between the hydrological years from 1975/1976 to 2015/2016. The rainfall data were organized and treated in order to demonstrate the absolute frequency of rainfall patterns that were related to the ENSO and PDO phases, and Student's t test was applied and the Analysis of Variance (ANOVA) was performed to determine the level of the statistical significance. The results showed that there was a higher frequency of the rainy pattern during the years considered neutral and in the El Niño condition during the warm phase of the PDO. There was a higher frequency of the dry pattern in the rainfall regions north of the study area and in the Jataí region during the La Niña condition in both phases of the PDO. |
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INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICTINFLUÊNCIAS DO EL NIÑO OSCILAÇÃO SUL (ENOS) E DA OSCILAÇÃO DECENAL DO PACÍFICO (ODP) NA VARIABILIDADE DOS TOTAIS ANUAIS DE CHUVA EM GOIÁS E NO DISTRITO FEDERALPrecipitaçãoVariabilidadeEl NiñoLa NiñaPrecipitationVariabilityEl NiñoLa NiñaThe exceptional rainfall regime can condition economic and social losses, especially related to human supply, food production and energy generation. In order to contribute to the understanding of rainfall variability, the objective is to analyze the influences of ENSO and PDO on the variability of annual rainfall totals in Goiás and the Federal District, based on rainfall data from 40 stations of the National Water Agency (ANA, in portuguese) and the National Institute of Meteorology. (INMET, in portuguese), between the hydrological years from 1975/1976 to 2015/2016. The rainfall data were organized and treated in order to demonstrate the absolute frequency of rainfall patterns that were related to the ENSO and PDO phases, and Student's t test was applied and the Analysis of Variance (ANOVA) was performed to determine the level of the statistical significance. The results showed that there was a higher frequency of the rainy pattern during the years considered neutral and in the El Niño condition during the warm phase of the PDO. There was a higher frequency of the dry pattern in the rainfall regions north of the study area and in the Jataí region during the La Niña condition in both phases of the PDO.O regime excepcional das chuvas pode condicionar prejuízos de ordem econômica e social, especialmente relacionados ao abastecimento humano, à produção de alimento e à geração de energia. De modo a contribuir com a compreensão da variabilidade das chuvas, objetiva-se analisar as influências do ENOS e da ODP nos totais anuais de chuva em Goiás e no Distrito Federal, a partir dos dados pluviométricos de 40 estações da Agência Nacional de Águas (ANA) e do Instituto Nacional de Meteorologia (INMET), entre os anos hidrológicos de 1975/1976 a 2015/2016. Os dados pluviométricos foram organizados e tratados de modo a retratar a frequência absoluta dos padrões de chuva que foram relacionados com as fases do ENOS e da ODP, sendo aplicado o Teste t de Student e realizada a Análise de Variância (ANOVA) para averiguar o nível de significância estatística. Os resultados evidenciaram que houve maior frequência do padrão chuvoso durante os anos considerados neutros e na condição de El Niño durante a fase quente da ODP. Houve maior frequência do padrão seco nas regiões pluviométricas ao norte da área de estudo e na região de Jataí durante a condição de La Niña em ambas as fases da ODP.EDUFU - Editora da Universidade Federal de Uberlândia2023-10-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado pelos paresapplication/pdfhttps://seer.ufu.br/index.php/caminhosdegeografia/article/view/6745810.14393/RCG249567458Caminhos de Geografia; Vol. 24 No. 95 (2023): Outubro; 321-338Caminhos de Geografia; Vol. 24 Núm. 95 (2023): Outubro; 321-338Caminhos de Geografia; v. 24 n. 95 (2023): Outubro; 321-3381678-6343reponame:Caminhos de Geografiainstname:Universidade Federal de Uberlândia (UFU)instacron:UFUporhttps://seer.ufu.br/index.php/caminhosdegeografia/article/view/67458/36971Copyright (c) 2023 Washington Silva Alves, João Batista Pereira Cabral, Diego Tarley Ferreira Nascimentohttp://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessAlves, Washington SilvaCabral, João Batista PereiraNascimento, Diego Tarley Ferreira2023-10-02T13:03:22Zoai:ojs.www.seer.ufu.br:article/67458Revistahttps://seer.ufu.br/index.php/caminhosdegeografia/indexPUBhttp://www.seer.ufu.br/index.php/caminhosdegeografia/oaiflaviasantosgeo@gmail.com1678-63431678-6343opendoar:2023-10-02T13:03:22Caminhos de Geografia - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT INFLUÊNCIAS DO EL NIÑO OSCILAÇÃO SUL (ENOS) E DA OSCILAÇÃO DECENAL DO PACÍFICO (ODP) NA VARIABILIDADE DOS TOTAIS ANUAIS DE CHUVA EM GOIÁS E NO DISTRITO FEDERAL |
title |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT |
spellingShingle |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT Alves, Washington Silva Precipitação Variabilidade El Niño La Niña Precipitation Variability El Niño La Niña |
title_short |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT |
title_full |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT |
title_fullStr |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT |
title_full_unstemmed |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT |
title_sort |
INFLUENCES OF EL NIÑO SOUTH OSCILLATION (ENSO) AND PACIFIC DECENAL OSCILLATION (PDO) ON THE VARIABILITY OF ANNUAL RAIN TOTALS IN GOIÁS AND THE FEDERAL DISTRICT |
author |
Alves, Washington Silva |
author_facet |
Alves, Washington Silva Cabral, João Batista Pereira Nascimento, Diego Tarley Ferreira |
author_role |
author |
author2 |
Cabral, João Batista Pereira Nascimento, Diego Tarley Ferreira |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Alves, Washington Silva Cabral, João Batista Pereira Nascimento, Diego Tarley Ferreira |
dc.subject.por.fl_str_mv |
Precipitação Variabilidade El Niño La Niña Precipitation Variability El Niño La Niña |
topic |
Precipitação Variabilidade El Niño La Niña Precipitation Variability El Niño La Niña |
description |
The exceptional rainfall regime can condition economic and social losses, especially related to human supply, food production and energy generation. In order to contribute to the understanding of rainfall variability, the objective is to analyze the influences of ENSO and PDO on the variability of annual rainfall totals in Goiás and the Federal District, based on rainfall data from 40 stations of the National Water Agency (ANA, in portuguese) and the National Institute of Meteorology. (INMET, in portuguese), between the hydrological years from 1975/1976 to 2015/2016. The rainfall data were organized and treated in order to demonstrate the absolute frequency of rainfall patterns that were related to the ENSO and PDO phases, and Student's t test was applied and the Analysis of Variance (ANOVA) was performed to determine the level of the statistical significance. The results showed that there was a higher frequency of the rainy pattern during the years considered neutral and in the El Niño condition during the warm phase of the PDO. There was a higher frequency of the dry pattern in the rainfall regions north of the study area and in the Jataí region during the La Niña condition in both phases of the PDO. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado pelos pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/67458 10.14393/RCG249567458 |
url |
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/67458 |
identifier_str_mv |
10.14393/RCG249567458 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/67458/36971 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
EDUFU - Editora da Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
EDUFU - Editora da Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Caminhos de Geografia; Vol. 24 No. 95 (2023): Outubro; 321-338 Caminhos de Geografia; Vol. 24 Núm. 95 (2023): Outubro; 321-338 Caminhos de Geografia; v. 24 n. 95 (2023): Outubro; 321-338 1678-6343 reponame:Caminhos de Geografia instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Caminhos de Geografia |
collection |
Caminhos de Geografia |
repository.name.fl_str_mv |
Caminhos de Geografia - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
flaviasantosgeo@gmail.com |
_version_ |
1797067010960523264 |