Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil

The present paper aims of computing climatology and trend analysis of occurrence and intensity of extreme events of precipitation in subregions of Northeast Brazil (NEB). We used daily rainfall data of 148 rain gauges collected from the hydrometeorological network managed by the National Water Agenc...

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Detalhes bibliográficos
Autores: Oliveira, Priscilla Teles de, Silva, Cláudio Moisés Santos e, Lima, Kellen Carla
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2016
País:Brasil
Recursos:Universidade Federal do Rio Grande do Norte (UFRN)
Repositório:Repositório Institucional da UFRN
Idioma:português
OAI Identifier:oai:repositorio.ufrn.br:123456789/30020
Acesso em linha:https://repositorio.ufrn.br/jspui/handle/123456789/30020
Access Level:Acceso aberto
Palavra-chave:Extreme events
Climatology
Cluster analysis
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spelling Climatology and trend analysis of extreme precipitation in subregions of Northeast BrazilExtreme eventsClimatologyCluster analysisThe present paper aims of computing climatology and trend analysis of occurrence and intensity of extreme events of precipitation in subregions of Northeast Brazil (NEB). We used daily rainfall data of 148 rain gauges collected from the hydrometeorological network managed by the National Water Agency during 1972 to 2002 and used quantiles technique in order to select rainfall events. Defining heavy rainfall events as those when at least one rain gauge recorded rainfall above the 95th percentile, normal rainfall was between the 45th and 55th percentiles, and weak rainfall events were under the 5th percentile. The Mann-Kendall nonparametric test was used to calculate the linear trend of the quantity and intensity of rainfall events. The NEB was divided in five subregions using the cluster analysis based on Euclidean distance and Ward’s method: Northern coast, Northern semiarid, Northwest, Southern semiarid, and Southern coast. The results suggest that the subregions are less influenced by El Niño and La Niña, and dry areas have higher variability, with the greatest number of intense eventsSpringer2020-09-10T19:41:13Z2020-09-10T19:41:13Z2016-07-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfOLIVEIRA, P. T.; SILVA, C. M. S.; LIMA, K. C.. Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil. Theoretical and Applied Climatology, [s.l.], v. 130, n. 1-2, p. 77-90, 16 jul. 2016. Disponível em: https://link.springer.com/article/10.1007%2Fs00704-016-1865-z. Acesso em: 10 ago. 2020. http://dx.doi.org/10.1007/s00704-016-1865-z.0177-798X1434-4483https://repositorio.ufrn.br/jspui/handle/123456789/3002010.1007/s00704-016-1865-zark:/41046/001300000k4vcAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessporreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNOliveira, Priscilla Teles deSilva, Cláudio Moisés Santos eLima, Kellen Carla2020-09-13T07:57:57Zoai:repositorio.ufrn.br:123456789/30020Repositório InstitucionalPUBhttp://repositorio.ufrn.br/oai/repositorio@bczm.ufrn.bropendoar:2020-09-13T07:57:57Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.none.fl_str_mv Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
title Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
spellingShingle Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
Oliveira, Priscilla Teles de
Extreme events
Climatology
Cluster analysis
title_short Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
title_full Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
title_fullStr Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
title_full_unstemmed Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
title_sort Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil
dc.creator.none.fl_str_mv Oliveira, Priscilla Teles de
Silva, Cláudio Moisés Santos e
Lima, Kellen Carla
author Oliveira, Priscilla Teles de
author_facet Oliveira, Priscilla Teles de
Silva, Cláudio Moisés Santos e
Lima, Kellen Carla
author_role author
author2 Silva, Cláudio Moisés Santos e
Lima, Kellen Carla
author2_role author
author
dc.subject.por.fl_str_mv Extreme events
Climatology
Cluster analysis
topic Extreme events
Climatology
Cluster analysis
description The present paper aims of computing climatology and trend analysis of occurrence and intensity of extreme events of precipitation in subregions of Northeast Brazil (NEB). We used daily rainfall data of 148 rain gauges collected from the hydrometeorological network managed by the National Water Agency during 1972 to 2002 and used quantiles technique in order to select rainfall events. Defining heavy rainfall events as those when at least one rain gauge recorded rainfall above the 95th percentile, normal rainfall was between the 45th and 55th percentiles, and weak rainfall events were under the 5th percentile. The Mann-Kendall nonparametric test was used to calculate the linear trend of the quantity and intensity of rainfall events. The NEB was divided in five subregions using the cluster analysis based on Euclidean distance and Ward’s method: Northern coast, Northern semiarid, Northwest, Southern semiarid, and Southern coast. The results suggest that the subregions are less influenced by El Niño and La Niña, and dry areas have higher variability, with the greatest number of intense events
publishDate 2016
dc.date.none.fl_str_mv 2016-07-16
2020-09-10T19:41:13Z
2020-09-10T19:41:13Z
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 OLIVEIRA, P. T.; SILVA, C. M. S.; LIMA, K. C.. Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil. Theoretical and Applied Climatology, [s.l.], v. 130, n. 1-2, p. 77-90, 16 jul. 2016. Disponível em: https://link.springer.com/article/10.1007%2Fs00704-016-1865-z. Acesso em: 10 ago. 2020. http://dx.doi.org/10.1007/s00704-016-1865-z.
0177-798X
1434-4483
https://repositorio.ufrn.br/jspui/handle/123456789/30020
10.1007/s00704-016-1865-z
dc.identifier.dark.fl_str_mv ark:/41046/001300000k4vc
identifier_str_mv OLIVEIRA, P. T.; SILVA, C. M. S.; LIMA, K. C.. Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil. Theoretical and Applied Climatology, [s.l.], v. 130, n. 1-2, p. 77-90, 16 jul. 2016. Disponível em: https://link.springer.com/article/10.1007%2Fs00704-016-1865-z. Acesso em: 10 ago. 2020. http://dx.doi.org/10.1007/s00704-016-1865-z.
0177-798X
1434-4483
10.1007/s00704-016-1865-z
ark:/41046/001300000k4vc
url https://repositorio.ufrn.br/jspui/handle/123456789/30020
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
instname_str Universidade Federal do Rio Grande do Norte (UFRN)
instacron_str UFRN
institution UFRN
reponame_str Repositório Institucional da UFRN
collection Repositório Institucional da UFRN
repository.name.fl_str_mv Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)
repository.mail.fl_str_mv repositorio@bczm.ufrn.br
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score 15.198674

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