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@MastersThesis{Soares:2009:EsCoAt,
               author = "Soares, Helena Cachanhuk",
                title = "Estudo das condi{\c{c}}{\~o}es atmosf{\'e}ricas e 
                         oce{\^a}nicas do atl{\^a}ntico sudoeste e suas 
                         associa{\c{c}}{\~o}es com extremos de captura da 
                         sardinha-verdadeira",
               school = "Instituto Nacional de Pesquisas Espaciais",
                 year = "2009",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2009-03-31",
             keywords = "climatologia, an{\'a}lise atmosf{\'e}rica e oce{\^a}nica, 
                         atl{\^a}ntico sudoeste, compostos, Sardinella Brasiliensis, 
                         climatology, atmospheric and oceanic analysis, southwest atlantic, 
                         composites, Sardinellea Brasiliensis.",
             abstract = "A Sardinha-verdadeira {\'e} um importante recurso pesqueiro do 
                         pa{\'{\i}}s, com ocorr{\^e}ncia restrita {\`a} Plataforma 
                         Continental Sudeste brasileira. A s{\'e}rie de desembarque desta 
                         esp{\'e}cie apresenta anos de alta captura, como o m{\'a}ximo em 
                         1973 com 225 mil toneladas, e m{\'{\i}}nimos como o caso em 2000 
                         com 20 mil toneladas. Neste trabalho s{\~a}o estudadas as 
                         caracter{\'{\i}}sticas oce{\^a}nicas e atmosf{\'e}ricas 
                         presentes no per{\'{\i}}odo de maior desova da 
                         Sardinha-verdadeira, meses de dezembro e janeiro, com o intuito de 
                         investigar as causas dos extremos de captura. Para isto foram 
                         analisadas vari{\'a}veis oce{\^a}nicas como temperatura da 
                         superf{\'{\i}}cie do mar, tens{\~a}o do vento {\`a} 
                         superf{\'{\i}}cie do mar, transporte de Ekman e {\'{\i}}ndice 
                         de mistura. Tamb{\'e}m foram analisadas vari{\'a}veis 
                         atmosf{\'e}ricas, como precipita{\c{c}}{\~a}o, 
                         radia{\c{c}}{\~a}o de onda longa emergente, ventos e altura 
                         geopotencial. Em uma primeira etapa foi realizada a discuss{\~a}o 
                         da climatologia dessas vari{\'a}veis, para o per{\'{\i}}odo 
                         entre 1970 e 2001. Depois de estudado o comportamento m{\'e}dio 
                         atmosf{\'e}rico e oce{\^a}nico foi realizado o estudo dos 
                         extremos de captura. Para isto foram selecionados os anos 
                         positivos e negativos de maior captura, e elaborado campos 
                         m{\'e}dios das vari{\'a}veis e de suas anomalias. Com isso foi 
                         poss{\'{\i}}vel identificar que um excesso de mistura e 
                         transporte na parte norte da PCS, durante o per{\'{\i}}odo da 
                         desova est{\'a} associado a uma baixa captura no ano seguinte. O 
                         que pode ser explicado, uma vez que, o excesso de mistura e de 
                         transporte pode destruir as part{\'{\i}}culas de alimento e 
                         provocar a dispers{\~a}o de ovos e larvas. Na atmosfera foi 
                         identificado um sinal de maior atua{\c{c}}{\~a}o de ZCAS e 
                         sistemas frontais sobre a PCS, no per{\'{\i}}odo de desova 
                         associados aos extremos positivos. Estes sistemas podem causar 
                         mudan{\c{c}}a no padr{\~a}o predominante de ventos na PCS, e 
                         como consequ{\^e}ncia, no {\'{\i}}ndice de mistura e transporte 
                         da regi{\~a}o. ABSTRACT: The Brazilian Sardine is an important 
                         fishing resource for the country, with restricted occurrence in 
                         the Southeast Brazilian Bight (SBB). Landing records of this 
                         species shows years of high capture, as in 1973 with 225 thousand 
                         tons and the minimum in 2000 with 20 thousand tons. In this work 
                         was studied the oceanic and atmospheric characteristics of the 
                         most important spawning period, December and January, with the 
                         intention to investigate its possible relations with the catch 
                         extremes. The analysis was concentrated on relevant oceanic 
                         variables such as sea surface temperature, sea surface wind 
                         stress, Ekman transport and wind mixing index. The atmospheric 
                         variables investigated were precipitation, outgoing longwave 
                         radiation, wind and geopotential height. First, it was discussed 
                         the climatology of these variables for the period between 1970 and 
                         2001. After the average atmospheric and oceanic behavior was 
                         investigated, the catch extremes were assessed. For that purpose 
                         it was selected the positive and negative years and calculated the 
                         average of variables and its anomalies. With this study was 
                         possible to identify that an excess of water mixing and surface 
                         transport in the north of SBB, during the spawning period is 
                         associated with low capture in the next year. This occurs because 
                         the excess of mixing and transport can to destroy food particles 
                         and could cause the dispersion of the eggs and larvae. An increase 
                         in the frequency of South Atlantic Convergence Zone and frontal 
                         systems over SBB, in the spawning period is associated with 
                         positive catch extremes. These systems can cause changes in the 
                         direction of winds in SBB, influencing the surface mixing and 
                         transport in the region.",
            committee = "Angelis, Carlos Frederico (presidente) and Pezzi, Luciano Ponzi 
                         (orientador) and Kayano, Mary Toshie and Gherardi, Douglas 
                         Francisco Marcolino e and Wainer, Ilana Elazari Klein Coaracy",
           copyholder = "SID/SCD",
         englishtitle = "Study of the atmospheric and oceanic conditions in the southweast 
                         atlantic and its relation with the Brazilian sardine catch 
                         extremes",
             language = "pt",
                pages = "147",
                  ibi = "8JMKD3MGP8W/34S9BUB",
                  url = "http://urlib.net/rep/8JMKD3MGP8W/34S9BUB",
           targetfile = "publicacao.pdf",
        urlaccessdate = "17 jan. 2021"
}


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