@InProceedings{AbreuRAAMJDVFG:2018:AnPoNe,
               author = "Abreu, Alessandro Jos{\'e} de and Roberto, M. and Abalde, 
                         Jos{\'e} Ricardo and Alves, M. A. and Martin, I. M. and Jesus, 
                         Rodolfo de and Denardin, Clezio Marcos and Venkatesh, K. and 
                         Fagundes, P. R. and Gende, M.",
          affiliation = "{Instituto Tecnol{\'o}gico da Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico da Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico da Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico da Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico da Aeron{\'a}utica (ITA)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade do Vale 
                         do Para{\'{\i}}ba (UNIVAP)} and {Universidade do Vale do 
                         Para{\'{\i}}ba (UNIVAP)} and {Universidad Nacional de La Plata 
                         (UNLP)}",
                title = "Analysis of the positive and negative ionospheric response to an 
                         intense geomagnetic storm over Brazilian sector using total 
                         electron content data",
            booktitle = "Resumos...",
                 year = "2018",
         organization = "Latin American Conference on Space Geophysics, 11. (COLAGE)",
             abstract = "Interaction between magnetosphere and ionosphere during intense 
                         geomagnetic storms continue as an important issue nowadays related 
                         to the space weather studies. In this investigation, we present 
                         and discuss the ionospheric F-region disturbances over Brazilian 
                         sector during an intense geomagnetic storm occurred between 27 and 
                         29 May 2017. This geomagnetic storm reached a minimum Dst of -125 
                         nT at 0700 UT on 28 May. For this investigation, we present 
                         vertical total electron content (VTEC) observations from a chain 
                         of 124 GPS stations, covering from equatorial to low-latitudes 
                         regions over Brazilian sector. Also, the magnetometer measurements 
                         obtained at two stations in the low-latitude regions are 
                         presented. The results obtained are relevant to enlarge our 
                         understanding on the electrodynamics and the physical processes 
                         which involved with positive and negative ionospheric storm phases 
                         due to the prompt penetration of electric elds/disturbance of 
                         electric elds, thermospheric wind circulation changes and 
                         traveling ionospheric disturbances. The in uence of these 
                         phenomena on the characteristics of ionospheric F-region over 
                         Brazilian sector during geomagnetic disturbance will be presented 
                         and discussed.",
  conference-location = "Buenos Aires, Argentina",
      conference-year = "16-20 abr.",
             language = "en",
        urlaccessdate = "21 maio 2024"
}