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@InProceedings{TarasovaFiguPisn:2007:PeNeRa,
               author = "Tarasova, Tatiana A. and Figueroa, Silvio Nilo and Pisnichenko, 
                         Igor A.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)}",
                title = "Performance of new radiation parameterization schemes in the 
                         CPTEC-COLA global model forsummer months with anomaly 
                         precipitation over central and southeastern Brazil",
            booktitle = "Abstracts...",
                 year = "2007",
         organization = "3rd WGNE Workshop on Systematic Errors in Climate and NWP Models, 
                         San Francisco, Feb.12-16, 2007.",
              address = "San Francisco",
                 note = "{PCMDI(Program for Climate Model Diagnosis and Intercomparison 
                         )}",
             keywords = "schemes, meteorology, central, preciptation, southeastern, 
                         Brazil.",
             abstract = "The CPTEC-COLA GCM with different solar and thermal radiation 
                         schemes is used for a set of ensemble forecasts for normal and 
                         anomalously wet and dry summer months from 1997 to 2006 over 
                         central and southeastern Brazil. This region is characterized by 
                         enhanced convective cloudiness and rainfall in summer related to 
                         the South Atlantic convergence zone formation. An offline 
                         comparison of the original and two modern solar radiation schemes 
                         shows that the modern schemes calculate major atmospheric 
                         absorption and hence smaller solar radiative fluxes incident at 
                         the surface. The smaller solar radiation incident on the ground 
                         causes a decrease in evaporation and hence in convective 
                         precipitation rate in the model. The difference between the 
                         surface or top-of-the atmosphere thermal radiative fluxes 
                         calculated by original and modern thermal radiation schemes is 
                         quite smaller. Nevertheless,the change of the thermal radiation 
                         schemes in the model also affects the model results. The surface 
                         and top-of-the-atmosphere radiative fluxes simulated by the model 
                         with different solar and thermal radiation schemes are compared 
                         with the satellite-derived fluxes. The precipitation rates on the 
                         ground are compared with Global Precipitation Climatology Project 
                         data. In order to quantify the skill of ensemble forecasts various 
                         skill scores are calculated for above mentioned region.",
  conference-location = "San Francisco",
      conference-year = "12-16",
             language = "en",
         organisation = "PCMDI",
           targetfile = "POSTER-WGNE3.pdf",
        urlaccessdate = "24 jan. 2021"
}


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