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@Article{TakahashiCOSMPNDBWIGGSG:2014:DiEqLo,
               author = "Takahashi, Hisao and Costa, Sonia and Otsuka, Y. and Shiokawa, K. 
                         and Monico, J. F. G. and Paula, Eurico Rodrigues de and Nogueira, 
                         Paulo Alexandre Bronzato and Denardini, Clezio Marcos and 
                         Becker-Guedes, F{\'a}bio and Wrasse, Cristiano Max and Ivo, 
                         Andr{\'e} Aparecido de Souza and Gomes, Vitor C. F. and 
                         Gargarela, Walter and Sant´Anna, Nilson and Gatto, R.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Brasileiro de Geogra\fia e Estat{\'{\i}}stica (IBGE)} and 
                         {Solar-Terrestrial Environment Laboratory (STEL)} and 
                         {Solar-Terrestrial Environment Laboratory (STEL)} and 
                         {Universodade Estadual Paulista (UNESP)} and {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)} and {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)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Diagnostics of equatorial and low latitude ionosphere by TEC 
                         mapping over Brazil",
              journal = "Advances in Space Research",
                 year = "2014",
               volume = "54",
               number = "3",
                pages = "385--394",
                month = "Aug.",
             keywords = "ionospheric weather, TEC mapping, equatorial anomaly, plasma 
                         bubble.",
             abstract = "The total electron content (TEC) in the equatorial and 
                         low-latitude ionosphere over Brazil was monitored in two 
                         dimensions by using 2011 data from the ground-based global 
                         navigation satellite system (GNSS) receiver network operated by 
                         the Brazilian Institute for Geography and Statistics. It was 
                         possible to monitor the spatial and temporal variations in TEC 
                         over Brazil continuously during both day and night with a temporal 
                         interval of 10 min and a spatial resolution of about 400 km. The 
                         daytime equatorial ionization anomaly (EIA) and post-sunset plasma 
                         enhancement (PS-EIA) were monitored over an area corresponding to 
                         a longitudinal extension of 4000 km in South America. Considerable 
                         day-to-day variation was observed in EIA and PS-EIA. A large 
                         latitudinal and longitudinal gradient of TEC indicated a 
                         significant ionospheric range error in application of the GNSS 
                         positioning system. Large-scale plasma bubbles after sunset were 
                         also mapped over a wide range. Depletions with longitudinally 
                         separated by more than 800 km were observed. They were extended by 
                         more than 2000 km along the magnetic field lines and drifted 
                         eastward. It is expected that 2-dimensional TEC mapping can serve 
                         as a useful tool for diagnosing ionospheric weather, such as 
                         temporal and spatial variation in the equatorial plasma trough and 
                         crest, and particularly for monitoring the dynamics of plasma 
                         bubbles.",
                  doi = "http://dx.doi.org/10.1016/j.asr.2014.01.032",
                  url = "http://dx.doi.org/http://dx.doi.org/10.1016/j.asr.2014.01.032",
                 issn = "0273-1177 and 1879-1948",
                label = "self-archiving-INPE-MCTI-GOV-BR",
             language = "en",
           targetfile = "Takahashi_etal_2014_JASR.pdf",
                  url = "http://dx.doi.org/10.1016/j.asr.2014.01.032",
        urlaccessdate = "23 jan. 2021"
}


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