@MastersThesis{Welter:2016:MoTeCo,
               author = "Welter, Maria Eug{\^e}nia Sausen",
                title = "Modelagem do termo de contra gradiente na 
                         parametriza{\c{c}}{\~a}o de turbul{\^e}ncia no modelo 
                         atmosf{\'e}rico BRAMS",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2016",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2016-05-27",
             keywords = "Camada Limite Planet{\'a}ria (CLP), turbul{\^e}ncia 
                         atmosf{\'e}rica, termo de contra gradiente, Brazilian Regional 
                         Atmospheric Modeling System (BRAMS), teoria de Taylor, Planetary 
                         Boundary Layer (PBL), atmospheric turbulence, counter gradient 
                         term, Taylor's theory.",
             abstract = "Com o avan{\c{c}}o dos recursos computacionais nas {\'u}ltimas 
                         d{\'e}cadas tornou-se poss{\'{\i}}vel simular mais 
                         realisticamente o comportamento da atmosfera, sobretudo o da 
                         Camada Limite Planet{\'a}ria (CLP), onde a turbul{\^e}ncia 
                         {\'e} principal mecanismo controlando sua din{\^a}mica. No 
                         modelo atmosf{\'e}rico Brazilian developments on the Regional 
                         Atmospheric Modelling System (BRAMS), est{\~a}o 
                         dispon{\'{\i}}veis tr{\^e}s t{\'e}cnicas de 
                         simula{\c{c}}{\~o}es de turbul{\^e}ncia, sendo uma delas 
                         baseada na Teoria de Taylor implementada por (BARBOSA, 2007). 
                         Neste trabalho ser{\'a} implementado um novo termo nesta rotina 
                         de turbul{\^e}ncia baseada na Teoria de Taylor. Este novo termo 
                         {\'e} um contra-gradiente existente na Camada Limite Convectiva 
                         (CLC), pois no topo desta camada a turbul{\^e}ncia diminui e 
                         mostra um comportamento peculiar, onde {\'e} observado a 
                         exist{\^e}ncia do contra-gradiente. Para dar in{\'{\i}}cio ao 
                         trabalho os resultados realizados por (BARBOSA, 2007) foram 
                         reproduzidos. Para tal utilizou-se dados observados da campanha 
                         Wet season Atmospheric Mesoscale Campaign (WETAMC) do projeto LBA, 
                         juntamente com os dados de an{\'a}lise do modelo do Centro 
                         Europeu European Center for Medium Range Weather Forecast (ECMWF), 
                         os quais foram empregados como dados iniciais e tamb{\'e}m como 
                         condi{\c{c}}{\~o}es de contorno para as simula{\c{c}}{\~o}es 
                         num{\'e}ricas. A nova parametriza{\c{c}}{\~a}o mostrou-se 
                         satisfat{\'o}ria quanto aos resultados comparados com o observado 
                         das esta{\c{c}}{\~o}es de ABRACOS e Rebio Jaru. ABSTRACT: The 
                         increase in computational resources in the last decades made 
                         possible to simulate more realistically the behavior of the 
                         atmosphere, more specifically, the Planetary Boundary Layer (PBL), 
                         where the turbulence is the main mechanism controlling its 
                         dynamics. In the Brazilian Regional Atmospheric Modeling System 
                         (BRAMS), three schemes of turbulence parameterizations are 
                         available, one of them being based on Taylor\${'}\$s Theory, and 
                         has been included to the BRAMS by (BARBOSA, 2007). In the present 
                         work, an extra term is included in the Taylor\${'}\$s 
                         parametrization. This term is the so called counter-gradient of 
                         the Convective Boundary Layer (CBL), and accounts for the decrease 
                         of the turbulence in the upper part of this layer. Firstly, the 
                         results obtained by (BARBOSA, 2007) were reproduced. Observational 
                         data from Wet season Atmospheric Mesoscale Campaign (WETAMC) of 
                         the LBA project, along with analysis data from the European Center 
                         for Medium Range Weather Forecast (ECMWF), used as initial and 
                         boundary conditions for the numerical simulations. The new 
                         parameterization show satisfactory results when comparing with 
                         observational datasets from ABRACOS and Rebiu Jaru stations.",
            committee = "Ramos, Fernando Manuel (presidente) and Velho, Haroldo Fraga de 
                         Campos (orientador) and Sandri, Sandra Aparecida and Dias, Maria 
                         Assun{\c{c}}{\~a}o Faus da Silva",
           copyholder = "SID/SCD",
         englishtitle = "Modeling the counter gradient term in the parametrization of 
                         turbulence in the BRAMS atmospheric model",
             language = "pt",
                pages = "69",
                  ibi = "8JMKD3MGP3W34P/3LRJDQP",
                  url = "http://urlib.net/ibi/8JMKD3MGP3W34P/3LRJDQP",
           targetfile = "publicacao.pdf",
        urlaccessdate = "28 abr. 2024"
}