@InProceedings{ChavesCava:2000:AtCiFe,
               author = "Chaves, Rosane R. and Cavalcanti, Iracema Fonseca de Albuquerque",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "Atmospheric circulation features associated with the precipitation 
                         variability over the south region of Northeast Brazil",
            booktitle = "Proceedings...",
                 year = "2000",
                pages = "129--130",
         organization = "International Conference on Southern Hemisphere Meteorology and 
                         Oceanography, 6.",
             keywords = "scale common, features, baiu frontal zone, interannual variation, 
                         South America, patterns, Atlantic, model, precipitation, 
                         oscillation, hemisphere, SACZ.",
             abstract = "The atmospheric circulation features associated with the 
                         precipitation variability during the main rainy period (NDJ) of 
                         the south region of Northeast are determined through the ACP and 
                         Cluster analyses. Daily precipitation data and NCEP reanalysis 
                         data are used. The meteorological summer systems of South America, 
                         as well as the phenomena associated with their variability, such 
                         as ENSO, are identified. Positive (negative) anomalies of 
                         precipitation in the south region of Northeast are related to the 
                         positive (negative) phase of ENSO. It is pointed out that the wet 
                         pattern is related to the shift of the South Atlantic Convergence 
                         Zone (SACZ) northward and the South Pacific Convergence Zone (SPCZ 
                         )eastward. The rainy patterns are also associated with the 
                         tropical upper cyclonic vortex situated over the Atlantic Ocean, 
                         intense convection over the east region of Amazon and shift of the 
                         Bolivian High to the east. The flow at low levels is directed from 
                         the Amazon to the south region of Northeast and there is 
                         intensification of the northeast trade winds over the northern 
                         coast of South America. The dry pattern is associated with the 
                         SACZ displaced southwards and the tropical upper cyclonic vortex 
                         either close or over the continent. In this case, the Bolivian 
                         High is displaced to the west of its climatological position and 
                         the wind flow at low levels over South America is directed to 
                         southeast Brazil.",
  conference-location = "Santiago-Chile",
      conference-year = "3-7 apr.",
           copyholder = "SID/SCD",
             language = "en",
           targetfile = "11043.pdf",
        urlaccessdate = "19 abr. 2024"
}