%0 Journal Article
%@nexthigherunit 8JMKD3MGPCW/43SKC35
%@nexthigherunit 8JMKD3MGPCW/46JKC45
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
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%3 okeke - investigation.pdf
%X Monthly precipitation data from meteorological stations in Nigeria are analysed from 1950 to 1992, in relation to sea surface temperatures (SSTs) in the tropical Pacific and Atlantic Oceans. The analyses have shed some light on understanding the variability of rainfall anomalies observed in Nigeria for this period. The correlation values between rainfall anomaly indices (RAI) and different meteorological indices are not all significant. Thus, the analyses show some indication that rainfall in Nigeria is associated with El Niño-related circulation and rainfall anomalies. The low correlations between RAI and SST in the Pacific confirm low correlations between rainfall and southern oscillation indices (SOI). SST correlations in the tropical Atlantic suggest that warm surface water in this part of the Atlantic moves the Inter Tropical Convergence Zone (ITCZ) southward and away from the SouthEast of Nigeria, indicating less rainfall, while, in SouthWest of Nigeria, the warm surface waters in this part of the Atlantic are likely to be responsible for a more northern position of the ITCZ, which produces more rainfall. The lower correlation in Northern Nigeria may be attributed to its continentality, away from the influence of the sea surface conditions in the Gulf of Guinea and the tropical Atlantic. The drought, or rainfall, cycles in Northern Nigeria are more closely connected to the land surface conditions in the nearby Sahel region.
%8 Aug.
%N 5
%@secondarydate 20060808
%T Investigation of el nino and la nina  effects  and the  impact  of atlantic sea  surface temperatures (SSTs), on precipitation in Nigeria from 1950 to 1992
%@electronicmailaddress franciscaokeke@yahoo.com.br
%@electronicmailaddress marengo@cptec.inpe.br
%@electronicmailaddress nobre@cptec.inpe.br
%@secondarytype PRE PI
%K METEOROLOGY, Nigeria, El Nino, Rainfall, Precipitation, Atlantic Ocean, Pacific Ocean, METEOROLOGIA, Nigéria, Variabilidade interanual, El Niño, Chuvas, Anomalia de precipitação, Oceano Atlântico, Oceano Pacífico.
%@visibility shown
%@group
%@group DMD-INPE-MCT-BR
%@group DMA-INPE-MCT-BR
%@e-mailaddress deicy@cptec.inpe.br
%@secondarykey INPE-14696-PRE/9669
%@copyholder SID/SCD
%@issn 0169-3298
%2 sid.inpe.br/mtc-m05@80/2006/11.22.13.45.20
%@affiliation University of Nigeria, Department of Physics and Astronomy
%@affiliation Instituto Nacional de Pesquisas Espaciais, Centro de Previsão do Tempo e Estudos Climáticos  (INPE.CPTEC)
%@affiliation Instituto Nacional de Pesquisas Espaciais, Centro de Previsão do Tempo e Estudos Climáticos  (INPE.CPTEC)
%@project Estudos de mudança de clima, deteção, avaliação de impactos e vulnerabilidade / Impactos da mudança climática
%B Surveys in Geophysics
%P 545-555
%4 sid.inpe.br/mtc-m05@80/2006/11.22.13.45
%D 2006
%V 27
%@doi 10.1007/s1072-006-9009-0
%A Okeke, F. N.,
%A Marengo, José Antonio,
%A Nobre, Carlos Afonso,
%@dissemination WEBSCI; PORTALCAPES.
%@area MET