气候变化领域集成服务门户(CCPortal): Spatial distribution and estimation of rainfall trends and erosivity in the Epitácio Pessoa reservoir catchment, Paraíba, Brazil

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DOI	10.1007/s11069-020-03926-9
	Spatial distribution and estimation of rainfall trends and erosivity in the Epitácio Pessoa reservoir catchment, Paraíba, Brazil
	da Silva R.M.; Santos C.A.G.; da Costa Silva J.F.C.B.; Silva A.M.; Brasil Neto R.M.
发表日期	2020
ISSN	0921030X
起始页码	829
结束页码	849
卷号	102 期号:3
英文摘要	The main goals of this study are to better understand the spatial and temporal variabilities in rainfall and to identify rainfall trends and erosivity for the period from 1963 to 1991 in the Epitácio Pessoa reservoir catchment, which is located in Paraíba, northeastern Brazil. This study analyzes annual rainfall trends on a regional scale by using monthly data from 13 rainfall stations. For this purpose, the nonparametric Mann–Kendall and Sen methods were used in the analysis. Descriptive statistics methods and interpolation techniques were also used for spatial–temporal analysis of the annual rainfall. A detailed statistical analysis applied to the time series of all the stations indicates that the rainfall presents substantial annual spatial–temporal variability and a negative trend (decrease) in the mean rainfall at most of the rainfall stations in the catchment during the study period. The results only showed a positive trend for the Soledade and Pocinhos stations. The distribution of positive and negative trends in the Epitácio Pessoa reservoir catchment is extremely irregular, and the changes in the study area are more significant compared to those identified in other studies. Graphic abstract: [Figure not available: see fulltext.]. © 2020, Springer Nature B.V.
关键词	Mann–Kendall test Rainfall variability Sen’s test
英文关键词	annual variation; catchment; erosivity; interpolation; rainfall; reservoir; spatial distribution; time series analysis; trend analysis; Brazil; Paraiba
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205645
作者单位	Department of Geosciences, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil; Department of Civil and Environmental Engineering, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil; Postgraduate Programme Geography/CCEN/UFPB, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil; Postgraduate Programme Civil and Environmental Engineering/CT/UFPB, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil
推荐引用方式 GB/T 7714	da Silva R.M.,Santos C.A.G.,da Costa Silva J.F.C.B.,et al. Spatial distribution and estimation of rainfall trends and erosivity in the Epitácio Pessoa reservoir catchment, Paraíba, Brazil[J],2020,102(3).
APA	da Silva R.M.,Santos C.A.G.,da Costa Silva J.F.C.B.,Silva A.M.,&Brasil Neto R.M..(2020).Spatial distribution and estimation of rainfall trends and erosivity in the Epitácio Pessoa reservoir catchment, Paraíba, Brazil.Natural Hazards,102(3).
MLA	da Silva R.M.,et al."Spatial distribution and estimation of rainfall trends and erosivity in the Epitácio Pessoa reservoir catchment, Paraíba, Brazil".Natural Hazards 102.3(2020).