@Article{BarbosaRaoCava:2011:InVaHi,
               author = "Barbosa, Tatiane Felinto and Rao, Vadlamudi Brahmananda and 
                         Cavalcanti, Iracema Fonseca de Albuquerque",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Interannual variability of high potential vorticity in South 
                         Atlantic",
              journal = "Atmospheric Science Letters",
                 year = "2011",
               volume = "12",
               number = "4",
                pages = "368 - 374",
                month = "Oct. - Dec.",
             keywords = "potential vorticity, Rossby waves breaking, El Nino-Southern 
                         Oscillation.",
             abstract = "In this study, we examined intrusions of the high potential 
                         vorticity (HIGH-PV) at the 350 K isentropic level over the South 
                         Atlantic during the period December-January-February (DJF) 
                         1979-2001. These events have a large interannual variability and 
                         are negatively correlated with the Southern Oscillation Index. 
                         Many events occur during the El Nino years except in 1997/1998, 
                         while there are none or few cases in La Nina years except in 
                         1988/1989. The intrusion events which show interactions between 
                         the tropics and extratropics are associated with the 'westerly 
                         ducts' in the tropics and also with the amplitude of 
                         quasi-stationary waves and subtropical jet intensity.",
                  doi = "10.1002/asl.352",
                  url = "http://dx.doi.org/10.1002/asl.352",
                 issn = "1530-261X",
             language = "en",
           targetfile = "352_ftp.pdf",
        urlaccessdate = "03 maio 2024"
}