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

Oliveira, Priscilla Teles de; Silva, Cláudio Moisés Santos e; Lima, Kellen Carla

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

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dc.contributor.author	Oliveira, Priscilla Teles de
dc.contributor.author	Silva, Cláudio Moisés Santos e
dc.contributor.author	Lima, Kellen Carla
dc.date.accessioned	2020-09-10T19:41:13Z
dc.date.available	2020-09-10T19:41:13Z
dc.date.issued	2016-07-16
dc.description.resumo	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	pt_BR
dc.identifier.citation	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.	pt_BR
dc.identifier.doi	10.1007/s00704-016-1865-z
dc.identifier.issn	0177-798X
dc.identifier.issn	1434-4483
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/30020
dc.language	pt_BR	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Extreme events	pt_BR
dc.subject	Climatology	pt_BR
dc.subject	Cluster analysis	pt_BR
dc.title	Climatology and trend analysis of extreme precipitation in subregions of Northeast Brazil	pt_BR
dc.type	article	pt_BR