@Article{KavutarapuFaPrDeAbJeGe:2015:DaVaEq,
               author = "Kavutarapu, Venkatesh and Fagundes, Paulo Roberto and Prasad, D. 
                         S. V. V. D. and Denardini, Clezio Marcos and Abreu, Alessandro 
                         Jos{\'e} and Jesus, Rodolfo de and Gende, Mauricio Alfredo",
          affiliation = "{Universidade do Vale do Para{\'{\i}}ba (UNIVAP)} and 
                         {Universidade do Vale do Para{\'{\i}}ba (UNIVAP)} and {Andhra 
                         University} and {Instituto Nacional de Pesquisas Espaciais (INPE)} 
                         and {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidad Nacional de La Plata}",
                title = "Day-to-day variability of Equatorial Electrojet and its role on 
                         the day-to-day characteristics of the Equatorial Ionization 
                         Anomaly over the Indian (Northern hemisphere) and Brazilian 
                         (Southern hemisphere) sectors",
              journal = "Journal of Geophysical Research",
                 year = "2015",
               volume = "120",
                pages = "10.1002/2015JA0",
                 note = "{Setores de Atividade: Pesquisa e desenvolvimento 
                         cient{\'{\i}}fico.}",
             keywords = "Equatorial Ionization Anomaly, Equatorial Electrojet, Electron 
                         Density, Equatorial Ionosphere.",
             abstract = "The equatorial electrojet (EEJ) is a narrow band of current 
                         flowing eastward at the ionospheric E region altitudes along the 
                         dayside dip equator. Mutually perpendicular electric and magnetic 
                         fields over the equator results in the formation of equatorial 
                         ionization anomaly (EIA), which in turn generates large electron 
                         density variabilities. Simultaneous study on the characteristics 
                         of EEJ and EIA is necessary to understand the role of EEJ on the 
                         EIA variabilities. This is helpful for the improved estimation of 
                         total electron content (TEC) and range delays required for 
                         satellite-based communication and navigation applications. Present 
                         study reports simultaneous variations of EEJ and GPS-TEC over 
                         Indian and Brazilian sectors to understand the role of EEJ on the 
                         day-to-day characteristics of the EIA. Magnetometer measurements 
                         during the low solar activity year 2004 are used to derive the EEJ 
                         values over the two different sectors. The characteristics of EIA 
                         are studied using two different chains of GPS receivers along the 
                         common meridian of 77°E (India) and 45°W (Brazil). The diurnal, 
                         seasonal, and day-to-day variations of EEJ and TEC are described 
                         simultaneously. Variations of EIA during different seasons are 
                         presented along with the variations of the EEJ in the two 
                         hemispheres. The role of EEJ variations on the characteristic 
                         features of the EIA such as the strength and temporal extent of 
                         the EIA crest has also been reported. Further, the time delay 
                         between the occurrences of the day maximum EEJ and the 
                         well-developed EIA is studied and corresponding results are 
                         presented in this paper.",
                  doi = "10.1002/2015JA021307",
                  url = "http://dx.doi.org/10.1002/2015JA021307",
                 issn = "0148-0227 and 2156-2202",
                label = "lattes: 8030262077949409 4 KavutarapuFaPrNaAbJeGe:2015:DaVaEq",
             language = "en",
           targetfile = "1_kavutarapu.pdf",
                  url = "http://dx.doi.org/10.1002/2015JA021307",
        urlaccessdate = "03 maio 2024"
}