@InProceedings{UrbanoNobrGiar:2006:ImOGRe,
               author = "Urbano, Domingos Fernandes and Nobre, Paulo and Giarolla, 
                         Emanuel",
          affiliation = "Instituto Nacional de Pesquisas Espaciais (INPE), Centro de 
                         Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos(CPTEC). and 
                         Instituto Nacional de Pesquisas Espaciais (INPE), Centro de 
                         Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos (CPTEC) and 
                         Instituto Nacional de Pesquisas Espaciais (INPE), Centro de 
                         Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos (CPTEC)",
                title = "Impact of OGCM resolution on the tropical Atlantic dynamics and 
                         sea surface temperature",
            booktitle = "Proceedings...",
                 year = "2006",
         organization = "Congresso Brasileiro de Meteorologia, 14. (CBMET).",
            publisher = "SBMET",
             keywords = "OGCM, Atl{\^a}ntico tropical, TSM.",
             abstract = "Dois experimentos utilizando um modelo oce{\^a}nico de 
                         circula{\c{c}}{\~a}o geral com resolu{\c{c}}{\~o}es de1/4 e 
                         1/8 de grau na regi{\~a}o tropical do Atl{\^a}ntico foram 
                         comparados com observa{\c{c}}{\~o}es para avaliar o impacto do 
                         aumento de resolu{\c{c}}{\~a}o de grade na din{\^a}mica e 
                         termodin{\^a}mica oce{\^a}nica tropical. O experimento com 1/4 
                         de grau mostrou campos de velocidade muito suaves e n{\~a}o foi 
                         capaz de reproduzir adequadamente o sistema zonal de correntes 
                         equatoriais do Atl{\^a}ntico. A termoclina se mostrou muito 
                         horizontal ao longo de 38W como consequ{\^e}ncia da aux{\^e}ncia 
                         de processos din{\^a}micos. O experimento com 1/8 de grau, por 
                         outro lado, foi capaz de reproduzir o sistema zonal de correntes 
                         assim como as inflex{\~o}es na termoclina presentes nas 
                         observa{\c{c}}{\~o}es. Uma baixa resolu{\c{c}}{\~a}o de grade 
                         prejudica a reprodu{\c{c}}{\~a}o da distribui{\c{c}}{\~a}o 
                         horizontal de TSM. A correta simula{\c{c}}{\~a}o da 
                         din{\^a}mica oce{\^a}nica realizada pelo experimento com 1/8 de 
                         grau gerou manchas de valores mais altos no campo de TSM. Essas 
                         manchas provavelmente s{\~a}o capazes de disparar processos de 
                         convec{\c{c}}{\~a}o profunda na atmosfera. Portanto, uma 
                         resolu{\c{c}}{\~a}o de 1/8 de garu em modelos acoplados ir{\'a} 
                         fornecer melhores previs{\~o}es do tempo. Two Ocean General 
                         Circulation Model experiments were built with 1/4 and 1/8 degrees 
                         resolution and compared with observations on the Tropical Atlantic 
                         to evaluate the impact of grid resolution on the ocean dynamics 
                         and thermodynamics. 1/4-degree resolution resulted in a too 
                         smoothed velocity field and was not able to reproduce correctly 
                         the equatorial zonal current system. Its thermocline was too flat 
                         as a consequence of the lack of dynamical processes imposed by the 
                         low resolution. Otherwise, the 1/8-degree resolution outputs were 
                         very similar to the observations. The high-resolution experiment 
                         was able to reproduce correctly both the velocity field and the 
                         thermocline slopes. The lack of resolution affected the SST 
                         horizontal distribution. The correct representation of the ocean 
                         dynamics on the 1/8-degree resolution experiment was related with 
                         patches of high SST. These patches might trigger deep convective 
                         processes on the atmosphere. Therefore, a resolution of 1/8-degree 
                         on coupled models may improve the weather forecast skills..",
  conference-location = "Florian{\'o}polis, SC",
      conference-year = "Nov.27 - 01 Dec.",
           copyholder = "SID/SCD",
             language = "pt",
         organisation = "Coordenadora Geral do Congresso - Maria Gertrudes Alvarez Justi 
                         (presidente da SBMET)",
           targetfile = "Urbano.Impact.pdf",
        urlaccessdate = "19 abr. 2024"
}