globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.atmosres.2018.04.022
Scopus记录号: 2-s2.0-85047415071
论文题名:
Drought severity based on the SPI index and its relation to the ENSO and PDO climatic variability modes in the regions North and Northwest of the State of Rio de Janeiro - Brazil
作者: de Oliveira-Júnior J.F.; de Gois G.; de Bodas Terassi P.M.; da Silva Junior C.A.; Blanco C.J.C.; Sobral B.S.; Gasparini K.A.C.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 212
起始页码: 91
结束页码: 105
语种: 英语
英文关键词: Climatic extremes ; Drought monitoring ; Interannual variability ; Oceanic Niño index ; Precipitation ; Statistical indexes
Scopus关键词: Atmospheric pressure ; Climatology ; Drought ; Lanthanum ; Precipitation (chemical) ; Rain ; Climatic extremes ; Drought monitoring ; Interaction matrices ; Interannual variability ; Pacific decadal oscillation ; Southern oscillation ; Standardized precipitation index ; Statistical indexes ; Nickel compounds ; annual variation ; climate variation ; drought ; El Nino-Southern Oscillation ; environmental monitoring ; extreme event ; Pacific Decadal Oscillation ; precipitation (climatology) ; Brazil ; Rio de Janeiro [Brazil]
英文摘要: Drought severity in regions North and Northwest of Rio de Janeiro state (SRJ) was evaluated using the Standardized Precipitation Index (SPI) for the monthly (SPI-1) and annual (SPI-12) scales, as well as its relationship with El Niño - Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO). Data of 14 rainfall stations from a time series considering the period of 1967–2013 was used. The SPI calculation was based on the SCI package available at R software version 3.4.2 library. SPI categories used are Very Dry, Moderately Dry and Extremely Dry associated with the hot and cold phases of the PDO, followed by ENSO events according to the Oceanic Niño index (ONI) in El Niño region 3.4 using an interaction matrix. The matrix was evaluated by the coefficients of Kendall (τ), Sperman (ρ), Pearson (r) and R2 determination, followed by Willmott's concordance index (d), Standard Error of Estimation (SEE) and Student's t-test. The intense activity of La Niña in the cold 1st phase of the PDO increased rainfall with greater intensity in the Northwest region compared to the North. In the 2nd cold phase of the PDO, the events of El Niño, La Niña and Neutral years of the ENSO mutually contribute to the changes in rainfall regime of both regions. The most frequent SPI categories are Moderately Dry and Extremely Dry. SPI-1 was efficient in perceiving extreme droughts, while SPI-12 results were not significant in the revealing of extreme droughts. In addition, there was no relational pattern through statistical indexes between droughts detected by SPI, ENSO and PDO. Nevertheless, when ENSO cycles were persistent within both phases of the PDO, droughts occurred, mainly on the monthly scale. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108823
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Institute of Atmospheric Sciences (ICAT), Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-260, Brazil; School of Industrial Metallurgical Engineering of Volta Redonda, Technological Center, Federal University of Fluminense (UFF), Volta Redonda, Rio de Janeiro 27255-250, Brazil; Postgraduate Program in Physical Geography, University of São Paulo (USP), São Paulo, 05508-000, Brazil; State University of Mato Grosso (UNEMAT), Alta Floresta, MT 78580-000, Brazil; Postgraduate Program in Civil Engineering - PPGEC/ITEC/UFPA, Faculdade de Engenharia Sanitária e Ambiental - FAESA/ITEC/UFPA, Belém, 66075-110, Brazil; Postgraduate Program in Biosystems Engineering (PGEB), Federal University of Fluminense (UFF), Niterói, Rio de Janeiro 24220-900, Brazil; Land and Cartography Institute of Rio de Janeiro (ITERJ), State Secretary of the Environment (SEA-RJ), Rua Regente Feijó 7, Centro, Rio de Janeiro 20060-060, Brazil; National Institute for Space Research (INPE), São José dos Campos, SP 29550000, Brazil

Recommended Citation:
de Oliveira-Júnior J.F.,de Gois G.,de Bodas Terassi P.M.,et al. Drought severity based on the SPI index and its relation to the ENSO and PDO climatic variability modes in the regions North and Northwest of the State of Rio de Janeiro - Brazil[J]. Atmospheric Research,2018-01-01,212
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