@InProceedings{OliveiraAbduMoraSous:2018:AlTEMa,
               author = "Oliveira, C. B. A. and Abdu, Mangalathayil Ali and Moraes, A. O. 
                         and Sousasantos, Jonas de",
          affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)}",
                title = "An alternative TEC map tool for the ionospheric investigation over 
                         the Latin America region",
                 year = "2018",
         organization = "Latin American Conference on Space Geophysics, 11. (COLAGE)",
             abstract = "The Total Electron Content (TEC) of the ionosphere has been widely 
                         used by the scientific community to study the phenomenology and 
                         the behavior of the ionospheric plasma under different scenarios. 
                         In the equatorial and low latitude region, TEC maps have allowed 
                         the development techniques to investigate the spatial and temporal 
                         distribution of the depleted plasma structures characterized as 
                         equatorial plasma bubbles. Majority of the tools currently used to 
                         generate TEC maps have been developed for northern hemispheric 
                         regions of Asian, European and American sectors, where rather 
                         dense spatial coverage of GPS/GNSS receivers are available, and 
                         therefore assumption of a uniform distribution of TEC values are 
                         justifiable. These tools can present some deficiencies when used 
                         for the Latin American region where the spatial coverage of the 
                         receivers continues to be considerably more sparse. In this work, 
                         an alternative approach for the generation of TEC maps has been 
                         developed by the authors. This approach uses the real spatial 
                         distribution of the GPS receivers in Latin America and, 
                         consequently, the assumption that the TEC values have a uniform 
                         spatial distribution is not needed for the purpose of this 
                         investigation. Additionally, this alternative tool is used to 
                         process the TEC maps information in order to generate keograms 
                         which allow a better visualization of the temporal evolution of 
                         the dynamic characteristics of the plasma bubble structures. A 
                         comparison between the results from this alternative tool and TEC 
                         maps generated through other available methodologies is also 
                         presented. Furthermore, the keograms are evaluated in association 
                         with zonal plasma drift from Digisonde and ionospheric 
                         scintillation data. These results reveal some appreciable 
                         improvements in the description of TEC map over Latin American 
                         region, which is helpful for space weather and telecommunication 
                         communities in the understanding of the phenomenology over this 
                         region.",
  conference-location = "Buenos Aires, Argentina",
      conference-year = "16-20 abr.",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}