%0 Journal Article
%@nexthigherunit 8JMKD3MGPCW/43SQKNE
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@archivingpolicy denypublisher denyfinaldraft12
%@issn 0177-798X
%@usergroup administrator
%@usergroup deicy
%3 coelho_uvo_ambrizzi_2002.pdf
%X Previous studies on precipitarion over South America that strongly support the existence ok links between precipitation and SST anomalies in the Pacific Ocean have identified specific regions where the ENSO signal is particularly strnger.Northeast of Brazil and some parts of southern South America are examples of these regions. However, the same attention was not taken to identify which regions in the Central and East Pacific ocean are better correlated with the South America precipitation during extreme ENSO events, and also which are the transition regions of the precipitation signal over South America during these events. Coincident periods of ENSO events for both SST over the tropical Pacific ocean and montlhy precipitation sums from many observational stations over South America werw selected and analyzed. Two statistical methods were used for the data analysis: Singular Value Decomposition (SVD) and Simple Linear Correlation (SLC). The SVD results for warmer events in the Pacific corroborate previous ones and also clearly identified a transition region between the drier conditions in the Northeast of Brasil and the wetter conditions in the Southeast/South of Brazil. Transition regions were also determined over Peru and central Amazon. The SLC results indicated that the SST anomalies in the tropical east Pacific ocean has the strongest influence in the South American precipitation during El Niño events. During La Niña events the central area of the Pacific, around 180º, has shown a more significant influence.
%8 feb
%N 3-4
%T Exploring the impacts of the tropical Pacific SST on the precipitation patterns over South America during ENSO periods
%@secondarytype PRE PI
%K sea-surface temperature, singular-value decomposition, scale common features, baiu frontal zone, La-Nina events, El-Nino, northeast Brazil, statistical-models, oscillation cycle,anomalies.
%@visibility shown
%@group DOP-INPE-MCT-BR
%@e-mailaddress deicy@cptec.inpe.br
%@secondarykey INPE--PRE/
%2 sid.inpe.br/mtc-m18@80/2008/07.31.17.43.07
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)
%@affiliation International Research Institute for Climate Prediction, Palisades, NY, USA
%@affiliation Departamento de Ciências Atmosféricas Instituto de Astronomia Geofísica e Ciências Atmosféricas
%B Theoretical and Applied Climatology
%P 185-197
%4 sid.inpe.br/mtc-m18@80/2008/07.31.17.43
%D 2002
%V 71
%A Coelho, Caio Augusto dos Santos,
%A Uvo, C. B.,
%A Ambrizzi, T,
%@dissemination WEBSCI; PORTALCAPES; MGA.
%@area MET