@InProceedings{RamirezFerrGan:2000:AsSiRe,
               author = "Ramirez, Maria Cleofe Valverde and Ferreira, Nelson Jesus and Gan, 
                         Manoel Alonso",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Vortices ciclonicos desprendidos em altos niveis que originam-se 
                         no leste do Pacifico Tropical Sul - parte I : aspectos sinoticos 
                         relacionados a sua formacao",
            booktitle = "Anais...",
                 year = "2000",
                pages = "3287--3295",
         organization = "Congresso Brasileiro de Meteorologia, 11.",
             keywords = "vortices ciclonicos, Pacifico Tropical Sul, Cyclones, vortices.",
             abstract = "The National Centers for Environmental Prediction (NCEP) daily 
                         average reanalysis are used to study the synoptic features 
                         associated with formation of two upper tropospheric cut-off low 
                         (CL) in the Southeast Pacific Ocean. In the first case CL onset 
                         originates within a flow bifurcation at the upper level 
                         westerlies. In this context a ridge (R) in the southeast sector 
                         and a trough (T) in the northeast sector become part of the 
                         bifurcation. The advance of an cyclonic vortice in the 
                         southwestern sector of the bifurcation with a strong jet stream 
                         amplifies and accelerates R, making T northwest-southeast 
                         orientated, intensifying itself and originating the cut-off low. 
                         In the second case CL is originated as a remainder of a pre 
                         existing bifurcation over the South Pacific Ocean. In the both 
                         cases the coldest core of CL is located at 500 hPa, and the 
                         enhanced ciclonic vorticity anomaly is located at 300 hPa.",
  conference-location = "Rio de Janeiro",
      conference-year = "16-20 out. 2000",
           copyholder = "SID/SCD",
             language = "pt",
         organisation = "SBMET",
           targetfile = "Ramirez_Vortices ciclonicos desprendidos.pdf",
        urlaccessdate = "27 abr. 2024"
}