@InProceedings{RamirezFerrKaya:1998:AsSi,
               author = "Ramirez, Maria Cleofe Valverde and Ferreira, Nelson Jesus and 
                         Kayano, Mary Toshie",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "Padroes climaticos dos vortices ciclonicos em altos niveis no 
                         Nordeste do Brasil - Parte II - Aspectos Sin{\'o}ticos",
            booktitle = "Anais...",
                 year = "1998",
                pages = "6",
         organization = "Congresso Brasileiro de Meteorologia, 10.",
             abstract = "In this work the circulation patterns associated with the upper 
                         level cyclonic vortices (VCANs) ver Northeast Brazil and Tropical 
                         South Atlantic have been studied. It has been confirmed that VANs 
                         originate from the amplification of the ridge associated with the 
                         Bolivian high (BH). Such amplification can be caused by the 
                         equatorial incursion of midlatitude frontal systems, or by troughs 
                         in the North Pacific or in the North Atlantic aligned with BH in 
                         NW-SE or NE-SW directions. Also the vortex originates associated 
                         with the occurrence of an upper level anticyclonic circulation 
                         over southwestern Atlantic and southeastern Brazil, which is 
                         associated with stationary cold fronts (South Atlantic Convergence 
                         Zone - SACZ). The VCANs can present regular or irregular 
                         displacements. Midlatitude trough associated with frontal systems 
                         and an interhemispheric bifurcation at northwest of the South 
                         America can cause irregular displacement. For VCANs with regular 
                         displacement it was common to observe the presence of an upper 
                         level anticyclone over South Atlantic which is related to the 
                         SACZ.",
  conference-location = "Brasilia",
      conference-year = "26-30 out.",
           copyholder = "SID/SCD",
             language = "pt",
         organisation = "SBMET",
           targetfile = "Ramirez_Padroes climaticos dos vortices ciclonicos_part II.pdf",
        urlaccessdate = "20 maio 2024"
}