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@InProceedings{RomeroSanCamCinFre:2016:BrVeAp,
               author = "Romero, Luis Fernando Salgueiro and Sandri, Sandra Aparecida and 
                         Campos Velho, Haroldo Fraga de and Cintra, Rosangela Saher Correa 
                         and Freitas, Saulo Ribeiro de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Bred vector applied to the atmospheric dynamics",
                 year = "2016",
         organization = "International Conference on Nonlinear Science and Complexity, 6.",
             keywords = "Atmospheric dynamics, global circulation model, bred vector.",
             abstract = "One remarkable conquer of science was the numerical weather 
                         prediction. However, some dynamics processes are not well 
                         represented in the simulation, generating a degradation of the 
                         forecasting. In addition, a chaotic atmospheric dynamics is also 
                         noted, with strong dependency of the initial condition. The 
                         initial condition is never known in a completed way. Indeed, the 
                         procedure to determine the initial condition in the operational 
                         prediction center is called data assimilation, where the 
                         background fields (forecasted atmospheric state) is combined with 
                         observations for producing the analysis the new initial condition. 
                         The bred vector approach can be employed to investigate the 
                         sensitivity of a certain process in the atmospheric dynamics 
                         simulation, detecting the fastest-growing instabilities. The 
                         latter scheme is also applied to evaluate the goodness of the 
                         predicted dynamics, i.e., the breeding process is applied to 
                         evaluate the predictability. The bred vector is computed as a 
                         difference between reference and perturbed simulations for the 
                         dynamical system after a time period of integration. After that 
                         time integration period, the bred vector is scaled at the same 
                         size as the initial perturbation, and a new perturbed initial 
                         condition is added to restart the process.",
  conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
      conference-year = "16-20 May",
             language = "en",
        urlaccessdate = "23 jan. 2021"
}


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