@MastersThesis{Silveira:2010:EsAnOc,
               author = "Silveira, Isabel Porto da",
                title = "Estudo das anomalias oce{\^a}nicas e atmosf{\'e}ricas na 
                         regi{\~a}o da Conflu{\^e}ncia Brasil-Malvinas",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2010",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2010-02-23",
             keywords = "Conflu{\^e}ncia Brasil-Malvinas, intera{\c{c}}{\~a}o oceano 
                         atmosfera, climatologia, modelagem oce{\^a}nica, Brazil Malvinas 
                         (Falklands) Confluence, air sea interaction, climatology, ocean 
                         modeling.",
             abstract = "A Conflu{\^e}ncia Brasil-Malvinas (CBM) {\'e} conhecida como uma 
                         das regi{\~o}es mais energ{\'e}ticas dos oceanos. Ela se 
                         localiza no oceano Atl{\^a}ntico Sudoeste e exerce grande 
                         influ{\^e}ncia na modula{\c{c}}{\~a}o da camada limite 
                         atmosf{\'e}rica adjacente. Nessa regi{\~a}o oce{\^a}nica, 
                         massas d'{\'a}gua com caracter{\'{\i}}sticas distintas 
                         convergem, vinda do Norte, a Corrente do Brasil, quente e salina, 
                         e oriunda do Sul, a Corrente das Malvinas, com menores salinidade 
                         e temperatura. Essa converg{\^e}ncia {\'e} marcada por fortes 
                         gradientes de temperatura, salinidade, densidade e altura do 
                         n{\'{\i}}vel do mar. Esse trabalho estuda as din{\^a}micas 
                         oce{\^a}nica e atmosf{\'e}rica da CBM e suas 
                         rela{\c{c}}{\~o}es com processos oce{\^a}nicos e 
                         atmosf{\'e}ricos dos ambientes de m{\'e}dias e altas latitudes, 
                         os quais podem influenciar na forma{\c{c}}{\~a}o das anomalias 
                         de temperaturas e correntes encontradas na superf{\'{\i}}cie 
                         oce{\^a}nica dessa regi{\~a}o. Atrav{\'e}s de modelagem 
                         num{\'e}rica e de dados de rean{\'a}lise, encontrou-se dois 
                         comportamentos distintos para duas situa{\c{c}}{\~o}es de 
                         anomalias de temperatura do mar, uma positiva e outra negativa. A 
                         primeira, apresentou um escoamento de sul local, o qual surgiu em 
                         resposta ao padr{\~a}o de circula{\c{c}}{\~a}o 
                         atmosf{\'e}rica, que bloqueou a ressurg{\^e}ncia de {\'a}guas 
                         frias junto ao talude continental. Para o caso negativo, modelo e 
                         observa{\c{c}}{\~a}o divergiram quanto aos processos 
                         termodin{\^a}micos envolvidos na forma{\c{c}}{\~a}o dessas 
                         anomalias. Entretanto, as for{\c{c}}antes locais, para ambos 
                         casos, est{\~a}o relacionadas aos processos de 
                         subduc{\c{c}}{\~a}o e ressurg{\^e}ncia na regi{\~a}o de 
                         estudo. For{\c{c}}antes remotas foram averiguadas e aparentemente 
                         mudan{\c{c}}as na Corrente Circumpolar Ant{\'a}rtica, no 
                         Estreito de Drake, parecem contribuir para a variabilidade na 
                         Conflu{\^e}ncia Brasil Malvinas. ABSTRACT: The Brazil-Malvinas 
                         Conftuence (BMC) region is known as one of the most energetic 
                         zones of the World Ocean, and it has a strong inftuence on the 
                         Planetary Boundary Layer over the Southwestern Atlantic Oceano 
                         This oceanic region is characterized by the convergence of 
                         distinct water masses. The Brazilian Current, salty and warm, 
                         meets the cold fresh Malvinas Current over that region and origins 
                         the BMC. This convergence is marked by the strong vertical and 
                         horizontal gradients and temperature surface anomalies. This 
                         Project studies the dynamics and thermodynamics of the ocean and 
                         atmosphere at the BMC region and their relationship with the high 
                         latitude environment. The connections between high and mid 
                         latitudes might be the cause of the temperature and currents 
                         anomalies generation and maintenance on the Atlantic Southwestern. 
                         Through numerical modeling and reanalysis data analysis, it was 
                         found two distinct behaviors for two situations of sea temperature 
                         anomalies, one positive and another negative. The first one, 
                         presented a local ftow from south, which appeared in reply to 
                         atmospheric circulation, that blocked the upwelling of cold waters 
                         next to the continental slope. For the negative case, the 
                         numerical simulation and reanalysis diverged in determinate how 
                         thermodynamic processes were involved in the formation of these 
                         anomalies. However, the local forcings, for both cases, are 
                         related to downwelling and upwelling processes in the study 
                         region. ReŽmote forcings were inquired and apparently changes in 
                         the Antarctic Circumpolar Current, in the Drake Strait, aparently 
                         contribute for the BMC's variability.",
            committee = "Bonatti, Jos{\'e} Paulo (presidente) and Pezzi, Luciano Ponzi 
                         (orientador) and Wainer, Ilana Elazari Klein Coaracy",
           copyholder = "SID/SCD",
         englishtitle = "Study of oceanic and atmospheric anomalies in the Brazil Malvinas 
                         confluence",
             language = "pt",
                pages = "116",
                  ibi = "8JMKD3MGP7W/36QASBL",
                  url = "http://urlib.net/ibi/8JMKD3MGP7W/36QASBL",
        urlaccessdate = "12 maio 2024"
}