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@InProceedings{SilvaTakaWrasFigu:2017:CaIoPl,
               author = "Silva, Diego Barros and Takahashi, Hisao and Wrasse, Cristiano Max 
                         and Figueiredo, Cosme Alexandre Oliveira Barros",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Caracteristics of ionospheric plasma bubbles observed by tec maps 
                         in brazilian sector",
                 year = "2017",
         organization = "International Congress of the Brazilian Geophysical Sociey, 15.",
             abstract = "Using ionospheric TEC (Total Electron Content) maps provided by 
                         the Embrace Program/INPE (Brazilian Space Weather Study and 
                         Monitoring) it was possible to characterize the ionospheric plasma 
                         bubbles, the zonal drift velocity and the distance between 
                         consecutive bubbles observed in the Brazilian equatorial region 
                         from November 2012 to January 2016. The TEC maps were analyzed 
                         using the keogram technique. The data with more than 400 nights 
                         were analyzed with the presence of plasma bubbles between 18-03 HL 
                         (local time). The observed mean zonal drift velocities were 
                         between 65 and 125 m/s and the mean distances between consecutive 
                         plasma bubbles were between 640 and 900 km, these values being 
                         greater than previously observed. The results show that the 
                         ionospheric plasma bubbles present a significant latitudinal 
                         gradient in both zonal drift velocity and the distance between 
                         bubbles. In addition, the decrease of zonal drift velocities 
                         during a night was more clear to see in the region near the 
                         equatorial ionization anomaly.",
  conference-location = "Rio de Janeiro, RJ",
      conference-year = "31 jul. - 03 ago.",
           targetfile = "silva_characteristics.pdf",
        urlaccessdate = "17 jan. 2021"
}


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