@Article{TarasovaFePiOrCeBo:2006:ImNeSo,
               author = "Tarasova, Tatiana A. and Fernandez, Julio Pablo Reyes and 
                         Pisnichenko, Igor A. and Orsini, Jos{\'e} Antonio Marengo and 
                         Ceballos, Juan Carlos and Bottino, Marcos Jorge",
          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) 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) and 
                         Instituto Nacional de Pesquisas Espaciais (INPE), Centro de 
                         previs{\~a}o de Tempo e Estudos Clim{\'a}ticos(CPTEC)",
                title = "Impact of new solar radiation parameterization in the Eta model on 
                         the simulation of summer climate over South America",
              journal = "Journal of Applied Meteorology and Climatology",
                 year = "2006",
               volume = "45",
               number = "2",
                pages = "318--333",
                month = "Febr",
             keywords = "solar radiation, climate, radiation,surface, temperature.",
             abstract = "The regional Eta workstation (WS) model with horizontal resolution 
                         of 40 km has been integrated over South America for January 
                         2003.The NCEP-DOE Reanalysis II was used for initial and lateral 
                         boundary conditions. The comparison of the model-simulated and 
                         satellite-derived values of monthly mean incident solar radiation 
                         at the surface demonstrates that the former values are larger by 
                         20% - 30% over the entire region. To improve the surface flux 
                         representation in the model, a new solar radiation scheme has been 
                         implemented in it. Na offline comparison of the original and the 
                         new radiation schemes with the detailed line-by-line method 
                         demonstrates a higher accuracy for the new scheme. With the new 
                         scheme,the model-simulated incident solar radiation at the surface 
                         is in a better agreement with the satellite-derived data. 
                         Nevertheless, a noticeable systematic difference of 10%-20% still 
                         remains, probably because of the incorrect description of cloud 
                         parameters in the model. The lower incident solar radiation in the 
                         new version of the model causes a decrease of near-surface air 
                         temperature by 0.1- 1 C and a decrease of precipitation rate by to 
                         20%-30% over most of the continent. The increase in the simulated 
                         incident solar radiation and temperature is found in the region of 
                         the South Atlantic convergence zone, which s responsible for the 
                         enhanced cloudiness and precipitation in the central and 
                         southeastern parts of Brazil during summer.The model results are 
                         compared with observational data of meteorological stations, the 
                         Global Precipitation Climatology Project (GPCP), and the South 
                         American Low-Level Jet Experiment (SALLJEX) and are discussed.",
           copyholder = "SID/SCD",
                 issn = "1558-8432 and 1558-8424",
             language = "en",
           targetfile = "Tarasova.impact.pdf",
        urlaccessdate = "20 abr. 2024"
}