@Article{PezziCava:1998:AtOcCh,
               author = "Pezzi, Luciano Ponzi and Cavalcanti, Iracema Fonseca de 
                         Albuquerque",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "Temperature and precipitation anomalies over Brazil during the 
                         1995 winter season - atmospheric and oceanic characteristics",
              journal = "Revista Brasileira de Geof{\'{\i}}sica",
                 year = "1998",
               volume = "16",
               number = "2-3",
                pages = "209--218",
                month = "jul./nov.",
             keywords = "atmospheric blocking, temperature anomalies, precipitation 
                         anomalies, oceanic anomalies,bloqueio atmosferico, anomalias de 
                         temperatura, anomalias de precipitacao, anomalias oceanicas.",
             abstract = "The 1995 winter over south, southeast and central west Brazil was 
                         anomalous because monthly mean temperatures recorded in this 
                         period showed large positive deviations and the precipitation was 
                         below normal. In this study, atmospheric, oceanic and surface 
                         analyses were performed. The main goal is to diagnose the observed 
                         atmospheric anomalies over Brazil. Streamfunction anomalies at 200 
                         hPa revealed the presence of a blocking atmospheric situation and 
                         a wavetrain configuration in july and august depicting an 
                         anticyclonic circulation over the Pacific Ocean and South America. 
                         The atmospheric pattern blocked the frontal system track which was 
                         displaced from the normal path crossing the interior of the 
                         continent to the coast region. Time series of Sea Surface 
                         Temperature (SST) anomalies in areas 3 (over the South Atlantic 
                         Ocean) and 4 (over the South Pacific Ocean) were in opposite phase 
                         during the entire period. Area 3 showed a continuous cooling 
                         associated with a cyclonic circulation at low levels and area 4 
                         showed a continuous warming associated with a subtropical 
                         anticyclonic circulation. Resumo:O inverno de 1995 nas 
                         Regi{\~o}es Sul, Sudeste e Centro Oeste do Brasil foi 
                         at{\'{\i}}pico, pois as temperaturas m{\'e}dias mensais 
                         registradas neste per{\'{\i}}odo apresentaram grandes desvios 
                         positivos e a precipita{\c{c}}{\~a}o ficou abaixo da m{\'e}dia. 
                         Neste estudo foi feita uma an{\'a}lise dos campos 
                         atmosf{\'e}ricos, oce{\^a}nicos e de superf{\'{\i}}cie com o 
                         objetivo de se diagnosticar essas anomalias observadas. Nas 
                         anomalias de fun{\c{c}}{\~a}o de corrente em 200 hPa, foram 
                         identificados bloqueios na atmosfera que impediram a 
                         penetra{\c{c}}{\~a}o de sistemas frontais pelo interior do 
                         continente. Foi tamb{\'e}m identificada uma 
                         configura{\c{c}}{\~a}o de {"}trem de ondas{"} com 
                         circula{\c{c}}{\~o}es anticicl{\^o}nicas sobre o 
                         Pac{\'{\i}}fico sudeste e sobre a Am{\'e}rica do Sul. Usando-se 
                         s{\'e}ries temporais de anomalias de Temperatura da 
                         Superf{\'{\i}}cie do Mar (TSM) observou-se que as {\'a}reas 3 
                         (no Oceano Atl{\^a}ntico Sul) e 4 (no Oceano Pac{\'{\i}}fico 
                         Sul) estiveram em oposi{\c{c}}{\~a}o de fases. A {\'a}rea 3 
                         apresentou um cont{\'{\i}}nuo resfriamento associado a uma 
                         circula{\c{c}}{\~a}o cicl{\^o}nica em baixos n{\'{\i}}veis e 
                         a {\'a}rea 4 apresentou um aquecimento cont{\'{\i}}nuo 
                         associado a uma circula{\c{c}}{\~a}o anticicl{\^o}nica 
                         subtropical.",
           copyholder = "SID/SCD",
                 issn = "0102-261X",
             language = "pt",
           targetfile = "
                         
                         scielo.php?script=sci_arttext\&pid=S0102-261X1998000200008\&lng=en\&nrm=iso\&tlng=pt",
                  url = "http://www.scielo.br/scielo.php?script=sci_arttext\&pid=S0102-261X1998000200008\&lng=en\&nrm=iso\&tlng=pt",
        urlaccessdate = "03 maio 2024"
}