@Article{AndreoliKaya:2007:ImReAt,
               author = "Andreoli, Rita Valeria and Kayano, Mary Toshie",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)/CPTEC} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)/CPTEC}",
                title = "A importancia relativa do Atlantico tropical Sul e Pacifico Leste 
                         na variabilidade de precipitacao do Nordeste do Brasil",
              journal = "Revista Brasileira de Meteorologia",
                 year = "2007",
               volume = "22",
               number = "1",
                pages = "63--74",
                month = "2005-11",
             keywords = "Northeasterm Brazil, preciptacion, sea surface temperature, 
                         tropical Pacific, tropical Atlantic.",
             abstract = "Anomalias de precipita{\c{c}}{\~a}o no Nordeste do Brasil (NEB) 
                         s{\~a}o re-examinadas considerando-se os efeitos do El 
                         Nino-Oscila{\c{c}}{\`a}o Sul (ENOS) e do Atl{\^a}ntico Tropical 
                         (AT) na esta{\c{c}}{\~a}o anterior {\`a} esta{\c{c}}{\~a}o 
                         chuvosa do NEB. Na aus{\^e}ncia de anomalias de Temperatura da 
                         Superf{\'{\i}}cie do Mar (ATSMs) significativas no AT, durante a 
                         fase inicial e de desenvolvimento do ENOS, em DJF as anomalias na 
                         precipita{\c{c}}{\~a}o possivelmente s{\~a}o ocasionadas por 
                         padr{\~o}es de teleconex{\~o}es associados ao rearranjamento da 
                         c{\'e}lula de Walker, e em MAM, por padr{\~o}es de 
                         teleconex{\~o}es extratropicais. Simult{\^a}neos ENOS e ATSMs 
                         significativas no AT atuam para aumentar ou diminuir as anomalias 
                         de precipita{\c{c}}{\~a}o. ATSMs de mesmo sinal no ATS e 
                         Pac{\'{\i}}fico leste enfraquecem os padr{\~o}es de 
                         precipita{\c{c}}{\~a}o no NEB. Quando as ATSMs do ATS s{\~a}o 
                         n{\~a}o significativas ou com inagnitudes equivalentes {\`a}s do 
                         ATN, por{\'e}m com sinal oposto das ATSMs do Pac{\'{\i}}fico 
                         leste, as ATSMs do ATN e as anomalias da circula{\c{c}}{\~a}o 
                         atmosf{\'e}rica relacionada ao ENOS conduzem ao fortalecimento 
                         dos padr{\~o}es an{\^o}malos de precipita{\c{c}}{\~a}o. 
                         Independente do ENOS, a influ{\^e}ncia do AT na variabilidade de 
                         precipita{\c{c}}{\~a}o {\'e} mais marcante para o ATS. Um 
                         aspecto relevante apresentado aqui {\'e} o papel do ATS na 
                         variabilidade de precipita{\c{c}}{\~a}o do NEB, cujo 
                         monitoramento {\'e} essencial para prospec{\c{c}}{\~o}es 
                         clim{\'a}ticas sazonais. Palavras-chave: Nordeste do Brasil, 
                         precipita{\c{c}}{\~a}o, temperatura da superficie do mar, 
                         Pac{\'{\i}}fico tropical, Atl{\^a}ntico Tropical ABSTRACT: THE 
                         RELATIVE IMPORTANCE OF THE TROPICAL SOUTH ATLANTIC AND EASTERN 
                         PACIFIC ON RAINFALL VARIABILITY IN THE NORTNEAST BRAZiL. Rainfall 
                         anomaly patterns over Northeastern Brazil (NEB) are re-examined 
                         considering the effects of the El Nino/Southern Oscillation (ENSO) 
                         and the Tropical Atlantic (TA) during the season preceding the 
                         northern NEB rainy season. In the absence of significant sea 
                         surface temperature anomalies (SSTAs) in TA, during the initial 
                         and development phases of the ENSO, precipitation anomalies in DJF 
                         are possibly due to teleconnection patterns associated with the 
                         rearrangement of the Walker cell, and in MAM, duc to the 
                         extratropical teleconnection patterns. Simultaneous ENSO and 
                         significant SSTAs in the TA act to reinforce ar to inhibit the 
                         precipitation anomalies. The same signal SSTAs in the tropical 
                         south Atlantic (TSA) and in the eastern Pacific weaken the 
                         precipitation pattern over NEB. When the SSTAs in the TSA are 
                         non-significant or with equivalem magnitudes of those in the ATN, 
                         but with opposite signal of the SSTAs in the eastern Pacific, the 
                         SSTAs in the ATN and the ENSO-related atmospheric circulation 
                         Ieads to reinforced anomalous precipitation patterns. Independent 
                         of the ENSO, the TA influente in the precipitation variability is 
                         remarkable for the TSA. The relevam aspect presented here is the 
                         importam role of the TSA in the NEB precipitation variability. 
                         Thus, the TSA monitoring is essential for seasonal climate 
                         forecasting purposes..",
           copyholder = "SID/SCD",
                 issn = "0102-7786",
             language = "pt",
           targetfile = "Andreoli_Importancia.pdf",
        urlaccessdate = "20 maio 2024"
}