Variabilidade dos extremos de precipitação diária na cidade de Natal, Estado do Rio Grande do Norte, Nordeste do Brasil

dc.contributor.authorAmorim, Ana Cleide Bezerra
dc.contributor.authorScudelari, Ada Cristina
dc.contributor.authorAmaro, Venerando Eustáquio
dc.contributor.authorMatos, Maria de Fátima Alves
dc.date.accessioned2020-10-05T15:12:36Z
dc.date.available2020-10-05T15:12:36Z
dc.date.issued2019-04
dc.description.resumoThere is an increasing interest in understanding the dynamics of precipitation occurrence in Northeast Brazil (NEB), especially in coastal regions, once the significant population is concentrated in this region. The primary objective of this study is to evaluate the variability of extreme daily precipitation events (EEP) in the eastern region of Rio Grande do Norte State (RN), as well as to identify the synoptic environment related to EEP. Diagram of the mean excess function and quantiles technique were used in the selection of threshold (u) of an EEP. Those with precipitation above the 98th percentile (EEP98) were considered as EEP. Mann-Kendall and Pettitt tests were used for linear trend analysis. Fields of moisture convergence were used to compose the synoptic environment. The EEP98 records are consistent with the precipitation climatology, in which 75% were concentrated in the rainy season. The composition of the EEP98 events presented areas of maximum moisture convergence showing signs of the presence of the Intertropical Convergence Zone (ITCZ) and easterly waves disturbances. The EEP98 at Natal presented more intense in the last thirty years; however, the frequency remains the samept_BR
dc.identifier.citationAMORIM, A. C. B.; SCUDELARI, A. C.; AMARO, V. E.; MATOS, M. F. A.. Variabilidade dos Extremos de Precipitação Diária na Cidade de Natal, Estado do Rio Grande do Norte, Nordeste do Brasil. Anuário do Instituto de Geociências - UFRJ , v. 42, p. 284-295, 2019. Disponível em: https://revistas.ufrj.br/index.php/aigeo/article/view/31365. Acesso em: 24 set. 2020. http://dx.doi.org/10.11137/2019_4_284_295pt_BR
dc.identifier.doi10.11137/2019_4_284_295
dc.identifier.issn0101-9759
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/30243
dc.languagept_BRpt_BR
dc.publisherAnuário do Instituto de Geociênciaspt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectEstação chuvosapt_BR
dc.subjectZona costeirapt_BR
dc.subjectAnálise de tendênciapt_BR
dc.titleVariabilidade dos extremos de precipitação diária na cidade de Natal, Estado do Rio Grande do Norte, Nordeste do Brasilpt_BR
dc.typearticlept_BR

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