Fechar
Metadados

@InProceedings{TeixeiraMarPerSouLim:2015:AnSeRe,
               author = "Teixeira, Venize Assun{\c{c}}{\~a}o and Martins, Fernando R. and 
                         Pereira, Enio Bueno and Souza, Jefferson Gon{\c{c}}alves de and 
                         Lima, Francisco Jos{\'e} Lopes de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "An{\'a}lise da sensibilidade da resolu{\c{c}}{\~a}o vertical do 
                         modelo WRF para simula{\c{c}}{\~a}o de radia{\c{c}}{\~a}o 
                         solar no estado do Cear{\'a}",
            booktitle = "P{\^o}steres",
                 year = "2015",
         organization = "Simp{\'o}sio Internacional de Climatologia, 6. (SIC)",
             keywords = "Modelo Atmosf{\'e}rico, Modelo WRF, Model Atmospheric, model 
                         WRF.",
             abstract = "O estudo avaliou a sensibilidade de diferentes 
                         resolu{\c{c}}{\~o}es verticais (27 n{\'{\i}}veis, 45 
                         n{\'{\i}}veis e 65 n{\'{\i}}veis) do modelo WRF para 
                         radia{\c{c}}{\~a}o solar, na resolu{\c{c}}{\~a}o horizontal de 
                         16km e 4km, em localidades com caracter{\'{\i}}sticas de 
                         altitude e clima diferentes do Cear{\'a}. Para a 
                         parametriza{\c{c}}{\~a}o de radia{\c{c}}{\~a}o utilizou-se a 
                         parametriza{\c{c}}{\~a}o RRTM (Mlawer et al.,1997) para 
                         radia{\c{c}}{\~a}o de onda longa e Dudhia (Dudhia,1989) para 
                         radia{\c{c}}{\~a}o de onda curta. As simula{\c{c}}{\~o}es 
                         foram realizadas com o modelo WRF para os tr{\^e}s primeiros dias 
                         do m{\^e}s de mar{\c{c}}o de 2009. Utilizou-se os dados 
                         observacionais hor{\'a}rios de radia{\c{c}}{\~a}o solar 
                         provenientes das Plataformas de Coleta de Dados (PCDs) da FUNCEME 
                         operando em Itapipoca no norte cearense; Acara{\'u} no Litoral 
                         Cearense; Acopiara e Cedro localizadas no Centro-Sul cearense. Os 
                         resultados mostraram que em todas as localidades ocorrem 
                         dificuldades em simular o efeito das nuvens sobre a 
                         irradia{\c{c}}{\~a}o terrestre. Contudo, o aumento da 
                         resolu{\c{c}}{\~a}o vertical se mostrou favor{\'a}vel em muitos 
                         casos. Nas regi{\~o}es da por{\c{c}}{\~a}o Norte do estado 
                         (Acara{\'u} e Itapipoca) o aumento da resolu{\c{c}}{\~a}o 
                         vertical de 27 n{\'{\i}}veis para 65 n{\'{\i}}veis reduziu o 
                         Vi{\'e}s e o RSME em mais de 50% para Acara{\'u} e 15% em 
                         Itapipoca. Nas localidades do Centro-Sul cearense (Acopiara e 
                         Cedro), n{\~a}o se observou uma rela{\c{c}}{\~a}o direta entre 
                         o aumento da resolu{\c{c}}{\~a}o vertical e a efici{\^e}ncia 
                         das simula{\c{c}}{\~o}es, contudo, na maioria das 
                         simula{\c{c}}{\~o}es com 45 n{\'{\i}}veis e 65 n{\'{\i}}veis 
                         observou-se melhorias quando comparados com as de 27 
                         n{\'{\i}}veis. Os resultados contribu{\'{\i}}ram 
                         significativamente para uma simula{\c{c}}{\~a}o mais eficiente 
                         da irradia{\c{c}}{\~a}o Solar no estado do Cear{\'a}. ABSTRACT: 
                         This study evaluated the performance of mesoscale model WRF to 
                         forecast solar irradiation at the surface in order to establish 
                         the best model set up for the Brazilian Northeastern region. 
                         Sensitivity tests were performed using different vertical 
                         resolutions (27 levels, 45 levels and 65 levels) . Two horizontal 
                         resolutions were evaluated: 16km and 4km. The RRTM scheme was used 
                         to parameterize the radiative processes for longwave radiation and 
                         Dudhia method was used for shortwave radiation. The simulations 
                         were performed with the WRF model for the first three days of 
                         March 2009. Observational data acquired at four ground sites with 
                         typical climate characteristics of Brazilian Northeastern region 
                         were used to evaluated the model performance. The hourly solar 
                         radiation data was acquired in automatic weather stations operated 
                         by FUNCEME at the coastal area (Itapipoca and Acara{\'u}) and at 
                         the semi-arid area (Acopiara and Cedro) of Cear{\'a}. The results 
                         showed that it is quite important to evaluate the optimal 
                         configuration of the mesoscale model WRF before start using it to 
                         forecast solar irradiation in Brazilian Northeastern region due to 
                         the particular climate features observed in the region, mainly 
                         related to the effect of clouds on surface solar irradiation. 
                         However, increasing the vertical resolution proved favorable in 
                         many cases. The higher vertical resolution reduced the bias and 
                         RSME in more than 50% for Acara{\'u} and 15% for Itapipoca in 
                         coastal area. In the localities of Acopiara and Cedro, there was 
                         no direct relationship between increased vertical resolution and 
                         the efficiency of the simulations, however, most of the 
                         simulations with 45 levels and 65 levels observed improvements 
                         when compared to the 27 levels. The results significantly 
                         contributed to a more efficient simulation of solar irradiation in 
                         the state of Cear{\'a}.",
  conference-location = "Natal, RN",
      conference-year = "13-16 out.",
             language = "pt",
           targetfile = "1_teixeira2.pdf",
        urlaccessdate = "29 nov. 2020"
}


Fechar